Write an equation for each of the following phrases or word problems. Solve for the missing variable. a. Two times a number is 16. b. Two plus a number is 28. c. Three is a number divided by 6. d. Samuel is y years old. In 10 years, he will be 27. How old is Samuel? e. A third of a pizza is 400 calories. How many calories in the whole pizza?

Answers

Answer 1

Answer:

2x8=16

2+26=28

he is 17 years old and in ten years he will be 27

Step-by-step explanation:

Answer 2

Answer:

-1200 Calories

-$287 - $175 =$112  

Sanjai was paid $112

Step-by-step explanation:


Related Questions

b) Solve x + 5x – 14 = 0

Answers

5x+x=14
14/6= 2.3
x=2.3

Answer:

2 1/3

Step-by-step explanation:

Step 1:

x + 5x - 14 = 0      Equation

Step 2:

6x - 14 = 0      Combine Like Terms

Step 3:

6x = 14      Add 14 on both sides

Step 4:

x = 14 ÷ 6        Divide

Answer:

x =  2 1/3

Hope This Helps :)

John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $13.50. They spend a total of $19.90. Find the cost of one large drink.

Answers

13.00 + 4X - 6.00 = 13.20

Combine the 13.00 - 6.00, getting 7.00

7.00 + 4X = 13.20

Subtract 7.00 from both sides:

7.00 + 4X = 13.20
-7.00 -7.00
------------------
4X = 6.00

Divide both sides by 4



X = $1.50

determine the range of the following graph:

Answers

Answer:

(-15)

Step-by-step explanation:

(-7) - 8 = (-15) (Range is the difference between Max and Min Value)

please follow me and mark as brainliest

In a study of the effect of aluminum intake on the mental development of infants, a group of 54infants who had been born prematurely were given a special aluminum depleted intravenous-feeding solution. At an adjusted age of 18 months,the neurologic development of the infants were measured using the Bayley Mental Development Index (BMDI), a unitless scale with higher scores indicating higher development. They had a sample mean BMDI of 97.4 and a sample standard deviation of 18.0.The (BMDI) is similar to an IQ score, with 100 being the average in the general population.

Assuming all relevant assumptions are met, carry out the appropriate testto determine if infants who receivedthealuminum depleted intravenous-feeding solution had a significantly differentaverage BMDI score thaninthe general population. Be sure to include all the stepsfor full credit.

Given:critical value= = 2.00

Answers

Answer:

The decision rule is  

  Fail to reject the null hypothesis

The conclusion is

   The no sufficient evidence to conclude  that the average  BMDI score is different from the general population

Step-by-step explanation:

From the question we are told that

    The  sample size is  n  =  54

    The sample mean is  [tex]\= x  =  97.4[/tex]

    The standard deviation is  [tex]s = 18.0[/tex]

     The population mean is  [tex]\mu  =  100[/tex]

     The critical value  is  [tex]t_{critical } =  2.0[/tex]

Generally the test statistics is mathematically represented as  

       [tex]t =  \frac{\= x - \mu}{\frac{s}{\sqrt{n} } }[/tex]

=>    [tex]t =  \frac{ 97.4  - 100}{\frac{ 18}{\sqrt{54} } }[/tex]

=>    [tex]t =-1.062[/tex]

Comparing the obtained t statistics with the critical value we see that

   The  critical value is not within the region of rejection (i.e -1.062 to 1.062  )

Hence the decision rule is  

  Fail to reject the null hypothesis

The conclusion is

   The no sufficient evidence to conclude  that the average  BMDI score is different from the general population

Pls help me I will give Brainlyest
Mrs. Rodriguez wants to pay her restaurant bill which is $24.00. If Mrs. Rodriguez wants to leave a 20% tip on the
total, how much should she pay?
O $20.35
O $26.40
O $28.80
O $33.60

Answers

Answer:

C

Step-by-step explanation:

$28.80

Answer:

c

Step-by-step explanation:

1. Emma’s average in math increased from an 80 to an 84. By what percentage did her average increase?

Answers

Answer:

82

Step-by-step explanation:

which of the rolling values are solutions to the inequality , ILL MARK BRAINLIST !!!

Answers

Answer:

II and III

Step-by-step explanation:

I...

-9 - 5x > -1

-9 - 5(2) > -1

-9 - 10 > -1

-19 > -1

FALSE

II...

-9 - 5x > -1

-9 - 5(-5) > -1

-9 + 25 > -1

16 > -1

TRUE

III...

-9 - 5x > -1

-9 - 5(-10) > -1

-9 + 50 > -1

41 > -1

TRUE

Best of Luck!

Answer:

II. and III.

Step-by-step explanation:

-9 - 5x > -1

I. 2

-9 - 5(2) > -1

-9 - (10) > -1

-19 > -1

- 19 is not more than -1, thus I. is not an option

II. -5

-9 - 5(-5) > -1

-9 + 25 > -1

16 > -1

16 is more than -1, thus II. is an option

III. -10

-9 - 5(-10) > -1

-9 + 50 > -1

41 > -1

41 is more than -1, thus III. is an option

!!!!Please help!!!!Choose the answer that best represents the situation described below
Casey is taking pictures outdoors. She knows that the darker it is outside, the
stronger she needs to set her flash,
A. The amount of light outside is a function of the strength of flash
she needs
B. The strength of flash needed is a functlyn of the shutter speed of
her camera
C. The strength of flash needed is a function of the amount of light
outside,
SUBMIT

Answers

It is a ..............

Zenzizenzicube is an obsolete word that represents the square of the square of a cube. In​ symbols, zenzizenzicube is written as

(((x^3)^2))^2

Required:
a. Use the chain rule twice to find the derivative.
b. Use the properties of exponents to first simplify the​ expression, and then find the derivative.

Answers

Answer:

Step-by-step explanation:

Given the expression (((x^3)^2))^2

a) Differentiating the function with respect to x using chain rule.

Given y = (((x^3)^2))^2

Let u = (x³)²

y = u²; dy/du = 2u

Let p = x³; dp/dx = 3x²

u = p²; du/dp = 2p

Applying the chain rule formula:

dy/dx = dy/du • du/dp • dp/dx

substitute in the formula

dy/dx = 2u•2p•3x²

Since u = (x³)² and p = x³

dy/dx = 2(x³)²(2x³)(3x²)

dy/dx = 12x^6•x^5

dy/dx = 12x¹¹

b) Using property of exponent

y = (((x^3)^2))^2

y = (x^6)²

y = x¹²

dy/dx = 12x^12-1

dy/dx = 12x^11

If an orthocenter lies inside of a triangle, then the triangle must be O isosceles. O acute. obtuse. o right​

Answers

If an orthocenter lies inside of a triangle, then the triangle must be acute.

Orthocenter of a triangle is the intersection of any two of three altitudes of a triangle. The third altitude usually pass through the point of the first two altitudes.

When the orthocenter lies inside a triangle, the angles formed by the intersection of the three altitudes is less than 90 degrees.An acute triangle is a type of triangle whose angles are less than 90 degrees.

Thus, If an orthocenter lies inside of a triangle, then the triangle must be acute.

Learn more about orthocenter here: https://brainly.com/question/6944944

Answer:D ( acute)

Step-by-step explanation:

edg

13/20 of a number is what percentage of that number?​

Answers

Answer:

65%

Step-by-step explanation:

A number plus it’s opposite is ___ zero. always,sometimes,never

Answers

Answer:

always

Step-by-step explanation:

Which values of a, b, and c correctly represent the answer in simplest form?

4 and one-half divided by 1 and one-fourth = a StartFraction b Over c EndFraction
a = 3, b = 6, c = 10
a = 3, b = 3, c = 5
a = 5, b = 3, c = 3
a = 10, b = 6, c = 3

Answers

Answer

the answer is a i

thinnk

Step-by-step explanation:

hope this helped!!

The values of the fraction are a = 3, b= 3,   c= 5 is the correct answer.

What is a fraction?

A fraction is a part of a whole number, and a way to split up a number into equal parts. It is a number expressed as a quotient, in which a numerator is divided by a denominator.

For the given situation,

The fraction is given as  [tex]\frac{4\frac{1}{2} }{1\frac{1}{4} }[/tex]

⇒ [tex]\frac{\frac{9}{2} }{\frac{5}{4} }[/tex]

⇒ [tex]\frac{9}{2}[/tex] × [tex]\frac{4}{5}[/tex]  

⇒ [tex]\frac{18}{5}[/tex]

⇒ [tex]3\frac{3}{5}[/tex]

Thus from the above value a = 3, b= 3, c= 5.

Hence we can conclude that the values of the fraction are a = 3, b= 3,   c= 5 is the correct answer.

Learn more about fractions here

https://brainly.com/question/17205173

#SPJ2

57. Designing a Patio Suppose that you wish to build a
rectangular cement patio that is to have a perimeter
of 80 feet. The length is to be 5 feet more than the
width.
(a) Find the dimensions of the patio.
(b) If the building code requires that the cement be
4 inches deep, how much cement do you have to
purchase?

Answers

Answer:

A. dimensions

Step-by-step explanation:

it's the first thing you will need to find out I beleave.

-A................................

Unit rate
Find each unit rate.
1. $140 for 18 ft2

Answers

Answer:

$17.50

Step-by-step explanation:

140 divided by 18 equals 17.50, the unit rate is dollars per foot.

Answer:

$7.78 : 1 ft²

Step-by-step explanation:

140 : 18

÷18  ÷18

7 7/9 : 1

    or

$7.78 : 1 ft²

Determine the intercepts of the graph please be sure

Answers

X = (7,0) y= (0,2)


Hope this helps!!

Answer:

X= (_7, 0)

Y= (0, 2

Step-by-step explanation:

We meet again

3cm
3cm
8cm
13cm
in the diagram above, the curved part is a Semi-
Circle. Find the area of the shaded portion
and correct your answer to 3 significant
figure. ​

Answers

Answer:

can u attach the diagram

Step-by-step explanation:

Which graph represent proportional relationship?

Answers

Answer:

C

Step-by-step explanation:

Non proportional graphs are non-linear and don’t go (necessarily) through 0,0

Proportional graphs are linear and always (eventually) cross through with 0,0

I think the answer would be c:)

Matt and his dad are building a tree house. They buy enough flooring material to cover an area of 36 square feet. What are all possible dimensions of the floor?

Answers

Answer:

a square

Step-by-step explanation:

because the width would be 6 and the length would be also 6 .6x6 is 36

Bro someone please help- i hate math -_-

Answers

Answer:

I can't see the image can you re upload

Step-by-step explanation:

Answer:Well I think the answer is 1/2 for the top because with mixed fractions the denominator has to be bigger then the numerator....And the bottom one is 2 because you put the bottom number on top. Hope it's right and it helps.

Step-by-step explanation:

subtract 8 from the input to get the output
divided the input by 3 to get the output

Answers

Answer: that will be 5

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

A deep sea diver descended from a rock that is 45 feet below

Answers

Diver descended 43 feet from the rock to the coral reef.
A deep sea diver descended from a rock that is 45 feet below sea level to a coral reef that is 88 feet below sea level.
To find : How far did the diver descend from the rock to the coral reef.
Solution : We have given
A deep sea diver descended below sea level = -45 feet .
A coral reef that is 88 feet below sea level = -88 feet.
Because we take the negative value below sea level( 0 ).
Difference = -45 - ( - 88)
Difference = -45 + 88 = 43
Diver descended 43 feet from the rock to the coral reef.
Therefore, Diver descended 43 feet from the rock to the coral reef.
If that is your question...

What is this variable? 3/4a — 6 = 4+3a

Answers

The answer is
a= -40/9

Marco has joined a bowling league, and is trying to raise his average to 140. On his last four games he scored 133, 130, 131, and 136. How much will he need to score on the next game to raise his mean to 140?

Answers

133 + 130 + 131 + 136 / 4 = 132.5
133 + 130 + 131 + 136 + 170 / 5 = 140

There is 3 questions help asap

Answers

The answer is A. C. D.

The expression 7(y-5)is equivalent to

Answers

7(y-5) = 7y-35

because 7(y) = 7y

and 7(-5) = -35

therefore 7y-35 is your answer



A grocery store sells bananas for $0.59 per pound. On Wednesdays, the store offers a 10% discount to senior
citizens. Create a function f (x) which models the amount, in dollars, a senior citizen would pay for 2 pounds
of bananas on Wednesday

Answers

Answer:

2

Step-by-step explanation:

f(x)= 0.90(0.59*2)

A grocery store sells bananas for $0.59 per pound. On Wednesdays, the store offers a 10% discount to senior citizens. We need to create a function f(x) which models the amount in dollars, a senior citizen would pay for 2 pounds

What is a simple Equation?

A mathematical equation which represents the relationship of two expressions on either side of the sign.

The 10% discount will make it so the senior citizens will pay 90% of the price.

90%=0.90

Also we need to know that 0.59*2 means how much money per pound the bananas cost.

So when you put it together, you should get f(x)=0.90(0.59*2)

The function f (x)=0.90(0.59*2) which models the amount, in dollars, a senior citizen would pay for 2 pounds of bananas on Wednesday

So the required function is f(x)=0.90(0.59*2)

To learn more on simple equations click here:https://brainly.com/question/19459372

#SPJ6

1.3.3- You currently have $50. You plan on spending $2 each day on candy at the
comer store on your way home from school. How long will it take until you are
left with only $18?
Your answer

Answers

Answer:

It will take 16 days.

Step-by-step explanation:

50-18=32

32/2=16

32 represents the total amount of money spent before ending up with $18 left. If you spend $2 a day, just divide 32/2 (Total/Rate?). The final answer is 16 days.

To check, divide 50/2 to get 25 (days) and subtract the days we have (16).

25-16=9

9x2=18 or the $18 in the end of the problem.

If any of that was confusing, I'll be happy to answer any questions. It's just a pretty easy question so I am not sure if I did anything how you want or don't want it done.

Simplify the problem 4{28-[10+(3+1)×2]}

Answers

Answer:

= 40

Step-by-step explanation:

Calculate within the parentheses:

28 - [10 + (3 + 1) * 2]

= 10

Calculate within the parentheses:

[10 + (3 + 1) * 2]

= 18

Subtract (Left to right):

= 28 - 18

Simplify:

= 4 * 10

Simpliy:

= 40

i got 40

it’s a little less complicated that you think i’m not sure if this was the answer but i did it as i could remember.

find the square root of 625​

Answers

25 could I have brainliest plz !

Step-by-step explanation:

square root of 625 is 25

Other Questions
hi jayda lee answer my question 5+5 THISSS IS 70 POINTSSS HELP What conclusion can you draw about the speaker's age from this passage from "At Night"?A-dozin' dis way by de fiah;Oo oom--hit feels so good to stretchI sutny is one weary wretch! . The sweet spot for receiving a volleyball is? a. The hands b. The elbow c. Between the hands and elbow Which statements describe the Sun? Check all that apply. When you are simply guessing in any test subject, which bubble should you fill in? *2 pointsNone of them, leave it blank.Pick a different answer choice for each guess.It doesn't matter which answer choice you pick, as long as you use the same one each time you are guessing.B and only B - no exceptions combine like terms to create an equivanlent expression and simplify coefficents and constants -6/5-2/3v+4/15+1/3v Percent error definition for biology. Which of these was an important trade system in the New World?a. The uranium trade with Mexico.b. The spice trade with Asia.c. The camel trade to Native Americans.d. The slave tradeoff both Africans and Native Americans. in an informational text, there are elements that show specific characteristics or sensory descriptions that allow the audience to visualize and establish connections between ideas. what are elements called? What is the most important variable in the problem?An auto shop has 98 cans of oil at the beginning of the day. 12 hours later, there are 10 cans remaining. How many were sold? hey yall i need help with email plz explain to me what happened Students were investigating properties of matter, but wanted to make sure that when they tested these properties they had properties that would represent the matter they were testing specifically. The students claim that they are going to test intrinsic properties. What evidence and reasoning would you provide to justify this claim? (7 points) Which is one of the main themes of Walden? How did the British treat the Native Americans they came into contact with when they began colonizing North America? Diffusion is the movement of molecules from an area of high concentration of molecules to an area with a ____ concentration.A. EqualB. Higher C. LowerD. None of the above Why does evolutionary theory absolutely require the earth to be veryold? Can someone help me out with this? First to answer will get brainliest. :) Your laptop was left on all night without being charged. When you wake up, the battery is dead. What happened to the battery's energy? * 5 points It was destroyed It was transformed to light, heat and sound energy. It leaked out of the laptop's battery. It was given off to the surrounding air as radiation. Social media has been with us for less than 2 decades, yet its anti-social effects from anxiety and depression to sleeplessness and compulsive behaviour are becoming obvious. Worse, more than 90% of 18 to 24-year-olds spend an average of 2 hours every day (equivalent to an entire month per year without sleep) on social media sites, with some doctors now so concerned that theyve called for social media to come with film-like age restrictions or be labelled with stark warnings similar to those on cigarette packets.To make matters worse, its now emerged that these same sites have been spying on us and raking in vast profits by selling our personal data to secretive organisations intent on manipulating everything from our shopping habits to our votes.Which word best describes the style of the text? Which is an argument in Common Sense for the colonies to declareindependence immediately from Britain?1 pointThe colonies had enemies & Britain refused to defend them against those enemies.The colonies were traditionally BritishBritain's commerce was limited to only the coloniesIt is absurd for an island to rule a continent.