Mathematics Middle School

Which statement about the ordered pairs ( 3, -8 ) and ( 4, 4 ) is true for the equation
3x - y/4 = 11

- (3, -8) is a solution, but not ( 4, 4 ).
- Both ordered pairs are solutions.
- Neither ordered pair is a solution.
- ( 4, 4 )is a solution to the equation, but not ( 3, -8 )

Answers

Answer 1

Answer:

David W. answered • 11/10/15 ... This equation is true for these pairs of (x,y) values [that is, these are points on ... (1,-4) The point where x=1 and y=-4 ... For example: 3(0) - y = 7. -y = 7. y = -7. so the first ordered pair is (0 , -7).

Step-by-step explanation:

Answer 2
Both ordered pairs are solutions.

Related Questions

what is lim x → -1 ln x​

Answers

Answer:

Step-by-step explanation:

ln(∞) = ?

Since infinity is not a number, we should use limits:

x approaches infinity

The limit of the natural logarithm of x when x approaches infinity is infinity:

lim ln(x) = ∞

 x→∞

x approaches minus infinity

The opposite case, the natural logarithm of minus infinity is undefined for real numbers, since the natural logarithm function is undefined for negative numbers:

lim ln(x) is undefined

 x → -∞

So we can summarize

ln(∞) = ∞

Read each question. Think about the data you might collect to answer it and whether you expect to see variability in the data. Complete each blank with "Yes" or "No."

1. How many cups of water do my friends drink each day? Is variability expected in the data? Statistical or Not Statistical .

Where in town does our math teacher live? Is variability expected in the data? Statistical or Not

How many minutes does it take students in my class to get ready for school in the morning? Is variability expected in the data? Statistical or Not

Do all students in my class know what month it is? Is variability expected in the data? Statistical or Not​

Answers

1. yes - amount of water will vary bc people drink different amounts (typically like 4-10 cups?)
2. no - one exact piece of data data
3. yes - students spend different times (usually 0.5-2 hours)
4. no - students will almost all say yes, not expected to vary

Evaluate the expression for the given value.
a^2 when a= 3/4 a^2=

Answers

a^2=a*a=(3/4)*(3/4)=9/16
Brainliest pls!
a^2=a*a=(3/4)* (3/4) =9/16
Mark Me brainliest please i need some points lol

hey! This is due at like 11 pm!

Answers

Answer:

[tex]7[/tex]

Step-by-step explanation:

Use the Pythagorean Theorem

[tex]a^2 + b^2 = c^2[/tex]

[tex]a[/tex] and [tex]b[/tex] are either opposite or adjacent

[tex]c[/tex] is the hypotenuse.

1. Look for the right angle. (the little box). The right angle "points" to the hypotenuse. In this case, the hypotenuse is 25.

2. Because we know the hypotenuse is 25. We know that 24 is our adjacent. Meaning our missing side is the opposite.

3. Plug in the numbers. [tex]24^2 + b^2 = 25^2[/tex]

4. Solve:

[tex]24^2 + b^2 = 25^2[/tex]

[tex]576 +b^2=625[/tex]

[tex]b^2 = 625-576[/tex]

[tex]b^2 = 49[/tex]

[tex]\sqrt{b^2} = \sqrt{49}[/tex]

[tex]b = 7[/tex]

Hope this helps! Lmk if you have questions.

It’s seven you use square root plug in and you got your answer

Hello I need help really quick, it's about percentages

Answers

30 students total, 12 boys

18/0.6 = 30
30-18=12
To check answer: 30*0.4 = 12

Answer:Let x be the total number of students in the class.

60% of x = ? (number of girls)

40% of x = 18 ( number of boys)

therefore, (2/5)x=18

x=45 ( Total number of students)

Please, Help Will give 25 points<3

Answers

Answer:

15.7 ft

Step-by-step explanation:

c = 2[tex]\pi[/tex]r

r = d/2

r = 2.5

c = (2 x 3.14) 2.5

c = 6.28 x 2.5

c = 15.7

15.7 is your correct answer

Please help me! what is C?

Answers

Answer:

C = -3/8

Step-by-step explanation:

you did find C as 3/8, but its supposed to be negative

Answer : -3/8

Explanation : Have A Great Day.

◊ YusuCr ◊

The following data points represent last year’s revenue (in thousands of dollars) for each Herman Huagoes location

Answers

Answer:

142

Step-by-step explanation:

Since the median is defined as the data point that separates the lower half from the upper half.

Odd # data points: Middle value of an ordered pair with an equal amount of data points on both sides.Even # data points: Average of two middle values in an ordered pair with an equal amount of data points on both sides.

Since there is an even amount of data points, to find the median, identify the two middle values, which are 137 and 147. Then add them together and divide by 2 to compute the average →

137 + 147 / 2 → 284 / 2 → 142.

Thus the median revenue is

142 thousand dollars

Solve 4-
1
4
.
Pls someone help i rlly need help with this, i’ll give brainlest

Answers

Answer:

4 - 1/4 = 15/

4

= 3 3/

4

= 3.75

Step-by-step explanation:

Subtract: 4 - 1/

4

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(1, 4) = 4. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 1 × 4 = 4. In the following intermediate step, it cannot further simplify the fraction result by canceling.

In other words - four minus one quarter = fifteen quarters.

The correct answer is 3/4 because 4 in fraction form is 4/4 and 4/4 minus 1/4 is 3/4.

Could I have a brainliest?? <33

help me please i need help im terable at math

Answers

Answer:

83

Step-by-step explanation:

70=x-13

70+13=x-13+13

83=x

The answer is 83 just make sure you show you work, as long you have 83 it will be right

Which expressions are equivalent to the given expression? Select two options. (–2.4a – 1.8b) – (–3.8a – 4.4b) + (2.0a + 3.0b) 3.4b – 3.2a 3.4a – 3.2b 5.6b + 3.4a 3.2b + 3.4a 3.4a Plus 5.6b
Will mark brainly!!

Answers

Answer:

the answer would be (-3.8a-4.4)

Step-by-step explanation:

Answer:

3 and 5 or c and e

Step-by-step explanation:

Got it right edge 2022

Consider the graph of the function
s (x ) = x² + 6x + 9.

Answers

Answer:

s
x=[tex]x^{2}[/tex]+6x+9

Step-by-step explanation:

I know what I am talking about.

last one pls answer 30 points

Answers

Answer:

yea I think it is 8 1/4 or somewhere up to 33 feet

Step-by-step explanation:

16 1/2 = 16.5/2 = 8.25

8.25 ft = 8 1/4 ft

or

16 1/2 = 16.5(2) = 33

33 ft

The fractions 1/2 and 3/5 are terminating decimals. The fractions 1/3 and 1/7 are repeating decimals.

Without using a calculator, how can you determine in a fraction will repeat or terminate? Give an additional example of a fraction that repeats.

Answers

Step-by-step explanation:

A terminating decimal is a decimal that doesnt repeat, it just stops. A repeating decimal is a decimal that goes on forever, it never stops.

Answer:
To determine if a fraction will repeat or terminate, first you need to turn it into a decimal, then you can see if it repeats or terminates.

An example of a fraction that repeats is 1/3

Mr. Martin wrote the following problem on the board.

Juanita's car has a gas mileage of 22 miles per gallon.

How many miles can Juanita travel on 8 gallons of gas?

Alex used
22 miles
1 gallon
×
1
8 gallons
to find the answer. What should Alex have done instead?

Answers

Just multiply 8x22, which is 176 miles

HeLLPPP PLEASE ASAP due in 5 min I don’t want to fail this I don’t understand this

Answers

Answer: Apri

l is 17 and June is 10

Step-by-step explanation: I'm learning this in school

What is the solution to the system of linear equations graphed below?

A- 3 1/2, -4
B- -4,3 1/2
C- 0,3
D- 0,-4

Answers

A. (3 1/2, -4)

It is A because in the graph it can be seen that both intersect or touch when y= -4. From there, you look at x, the closest number is 3 and 1/2
A 3 1/2, -4 answer is correct

Which of the following is an outlier in the set of data below?

2, 12, 12, 14, 17, 18, 19

19
2
14
12

Answers

Answer:

B/ 2

Step-by-step explanation:

Answers: B/2

Step by step:

Help, please! I DONT GET IT

Answers

Answer:

look at the set

Step-by-step explanation:

and determine the difefrences

idk

Jaya's coach agreed to buy ice cream for all of the team members. Ice cream cones are $2.40 each. Write and solve an equation to find how many cones the coach can buy with $30.

Let n represent the number of cones the coach can buy.

2.4 + n = 30 ; n = 27.6

n(2.4 + 4) = 30 ; n = 4.69

30 - 2.4 = n ; n = 27.6

2.4n = 30 ; n = 12.5

A rectangle has a length of (x + 5) centimeters and a width of 5 centimeters. If the perimeter is 35 centimeters, what is the length of the rectangle?


x = 7.5

length = 10

length = 12.5

x = 5

Answers

Answer:

A  2.4 + n = 30 ; n = 27.6

Step-by-step explanation:

2.4+n=30;n=27.6 I think this is it check again to make sure hope this helps

MODELING REAL LIFE A softball has a volume of about 29 cubic inches. Find the radius of the softball. Round your answer to the nearest tenth.
The radius of the softball is about___inches.

Answers

the equation for volume is V=4/3 * pi * radius cubed.

Since we know 29 is the volume, the equation is 29=4/3 * pi * radius cubed.

To get the radius alone, first divide 29 by 4/3. You get 21 3/4 or 87/4 or 21.75 (whichever way).

Then divide 21.75 by pi (3.14). You get 6.92675159236

To get the radius alone, find the cubed root of 6.92675159236.

The answer is 1.90623543217, but I'd rounded to 1.91

Answer: 1.91

Step-by-step explanation: the equation for volume is V=4/3 * pi * radius cubed.

Since we know 29 is the volume, the equation is 29=4/3 * pi * radius cubed.

To get the radius alone, first, divide 29 by 4/3. You get 21 3/4 or 87/4 or 21.75 (whichever way).

Then divide 21.75 by pi (3.14). You get 6.92675159236

To get the radius alone, find the cubed root of 6.92675159236.

The answer is 1.90623543217, but I rounded it to 1.91

Jacob and Jackson are on a hill by the river Jacob throws an acorn into the river is acorns path is described by the equation y= -3x^2+6x+6 Jackson is her on the hill then Jacob he also throws an acorn into the river his acorn is shown by the graph in each function the x is the acorns horizontal position from the hill and one represents its height and both are measured in feet who's Acorn is on fire point above the river

Answers

Answer: Jackson's acorn reached a higher point.

Step-by-step explanation:

According to the National Collegiate Athletic Association men’s rules, a tennis ball must have a diameter of more than 2 1/2 inches and less than 2 5/8 inches .

A) what is the volume of a sphere with the diameter or 2 1/2 inches?

B) what is the volume of a sphere with the diameter of 2 5/8 inches?

C) write and inequality that expresses the range in the volume of the acceptable tennis ball

Answers

Answer:

this was asked in 2020 I am pretty sure that you are in a different grade now so I am going to take the points.

Given: KLMN is a parallelogram, LF is perpendicular to KN, LD is perpendicular to NM, angle FLD = 35. Find angles of KLMN

Answers

The question is four parts, It is required the angles of parallelogram KLMN

So, It is required ⇒ ∠K  , ∠L  , ∠M  and ∠N

See the attached figure which represents the explanation of the problem

========================

Part (1): Find  ∠N:

==============

in the shape FLDN

∵ LF ⊥ KN  ⇒⇒⇒ ∴ ∠LFN = 90°

∵ LD ⊥ NM ⇒⇒⇒ ∴ ∠LDN = 90°

∵ The sum of all angels of FLDN = 360°

∵ ∠FLD = 35°

∴ ∠FLD + ∠LDN + ∠DNF + ∠LFN = 360°

∴ 35° + 90° + ∠DNF + 90° = 360°

∴ ∠DNF = 360° - ( 90° + 90° + 35°) = 360° - 215° = 145°

∴ The measure of angle N = 145°

=============================

Part (2): Find  ∠M:

==============

∵ KLMN is parallelogram , ∠N = 145°

∴ The angles N and M are supplementary angles ⇒ property of the parallelogram

∴ ∠M + ∠N = 180°

∴ ∠M = 180° - ∠N = 180° - 145° = 35°

∴ The measure of angle M = 35°

================================

Part (3): Find  ∠L:

==============

∵ KLMN is parallelogram , ∠M = 35°

∴ The angles N and M are supplementary angles ⇒ property of the parallelogram

∴ ∠M + ∠KLM = 180°

∴ ∠KLM = 180° - ∠M = 180° - 35° = 145°

OR ∠KLM = ∠N = 145° ⇒⇒⇒  property of the parallelogram

∴ The measure of angle KLM = 145°

===================================

Part (4): Find  ∠K:

==============∵ KLMN is parallelogram , ∠N = 35°

∴ The angles N and M are supplementary angles ⇒ property of the parallelogram

∴ ∠K + ∠N = 180°

∴ ∠K = 180° - ∠N = 180° - 145° = 35°

OR ∠K = ∠M = 35° ⇒⇒⇒  property of the parallelogram

∴ The measure of angle K = 35°

Answer:

m∠K= 35°, m∠KLM= 145°, m∠M= 35°, m∠N = 145°

Step-by-step explanation:

Help please. What is 1.6 x -9?

Answers

Answer:

-14.4

Step-by-step explanation:

Answer:

-14.4

Step-by-step explanation:

If you have $1.60 cents then times it 9 times, take the sum and put back the -.

Jenna’s method: Mia’s method:
5(30 + 4) 5(30 + 4)
(5)(30) + (5)(4) 5(34) = 170
150 + 20 = 170


Explain why both Jenna and Mia arrived at the same answer and the advantage of one method over the other.

Answers

Answer:

Jenna and Mia both used the distributive property to solve the problem, and the advantage of using Mia's method was that she added whats was I the parentheses, which narrowed down the math, but was still longer than Jenna's, as Jenna just multiplied both parts then added, making it shorter, and easier.

Step-by-step explanation:

They both used distributive property.

A local store buys video games from the manufacturer for $15.99. They mark up the price of the game 250%. What is the selling price of the video game? Round your answer to the nearest cent.

Answers

The answer for the above question wherein we are given the cost price and mark up price and we have to find the selling price is $39.98 after rounding it to the nearest cents.

The method of calculation for the same computation is as follows:

Firstly, the cost price of the video game is $15.99.

Second, the merchant is 250% overcharged for the game. Therefore, we would have to calculate the 250% of $15.99 as it would give us the selling price. We are making use of the following formula Selling price = markup price/100 × Cost price. Applying this formula we would get the following solution:

$15.99 × 250/100 = $ 39.975.

Rounding to the nearest cents we would get our final answer as $39.98. Hence, the selling price of the video game is $39.98.

Learn more about selling price at:

https://brainly.com/question/27796445

Im 21 assignments behind try your best <3

Answers

Answer:

.5, 3, 8.5

Step-by-step explanation:

Divide the minutes by 2 since 6 is half of 12.Half of 1 is .5 or [tex]\frac{1}{2}[/tex]Half of 6 is 3Half of 17 is 8.5

If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.

Step-by-step explanation:

Pages is directly proportional to Minutes

P = KM

k = P/M

when P = 6, M = 12.

k = 6/12

k = 0.5

_____________________

when M = 1

P = Km

P = 0.5×1 = 0.5

P = half a page.

______________________

when M = 6

P = 0.5× 6

P = 3 pages

______________________

when M = 17

P = 0.5×17 = 8.5

P = 8 and half pages

helppppp please loll

Answers

Answer:

1:10 in ratio. 1/10 in fraction

Step-by-step explanation:

Answer: There are many different answers, according to how y’all are learning to answer. The most common two are fractions and ratios. For this expression it would be 1:10 for a ratio and 1/10 for a fraction. If you need more help let me know :>

Write an equation to match this graph.

Answers

y = 5x
Hope this helps.

Answer:

y=5x

Step-by-step explanation:

We can write this in slop-intercept form

Find the slope, rise/run = 10/2 = 5. So our slope is 5

Find the y-intercept which is 0

y=5x+0 or y=5x

Check it by plugging in a y value or x value

lets says we plugin 15, 15=5x and x=3

By looking at the graph we can see that it works

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