7X-2=19
7x=19+2
7x=21
X=3
How do I verify this answer?
Answer:
to verify this answer you need to substitute the answer you got for x
Step-by-step explanation:
7(3)-2=19
21-2=19
19=19
this means that you are correct
Write an algebraic equation that relates the Profit to the Number of T-Shirts Sold. Use n to represent T-Shirts and p to represent the Profit.
Answer:
y= 3x -5
Step-by-step explanation:
since when x is 0, and y is -5, you know that the y intercept is -5.
look at the table
1x -5 = -2
x= 3
Boom.
LONG LIVE KOREA!
Which graph shows only a reflection?
Answer:
D BOTTOM RIGHT
Step-by-step explanation:
Cory made 4,500g of candy He saved 1 kg to eat later. He divided the rest of the candy over 7 bowls to serve at his party.
How many grams of candy did Cory serve in each bowl?
Answer:
In each bowl, Cory put 500 grams of candy.
Step-by-step explanation:
You would do 4,500 - 1 (since he save a kilogram for himself), which would equal 3,500.
Then, you would do 3,500 divided by 7 (since there are 7 bowls and he wants to split the remaining candy evenly), which would equal 500.
Answer:
Cory served 500 grams of candy in each bowl.
Step-by-step explanation:
4,500 = 4.50 kilograms
4.50kg - 1.00kg = 3.50kg
3.50kg ÷ 7kg = 0.50kg
0.50kg = 500g
parallel ,perpendicular, neither y=4x+5 and -4x +y=-13
Answer:
here,
slope of line y=4x+5(m1)=-a/b
=4
slope of line -4x+y=-13(m2)=-a/b
4
here m1=m2 so,these are parallel to each other.
PLEASE ANSWER what is the solution to -10k +1 <-99 or 10-8k<42
Answer:
Ummmm... Both?
Step-by-step explanation:
66k+9 OR 3(22K+3)
Answer:
k>10
k>-4
Step-by-step explanation:
-10k<-100
k>10
you flip the sign when dividing by a negative
-8k<32
k>-4
One third of a number T is equal to 12???
Answer:
1/3×t=12
t=3×12
t=36
Step-by-step explanation:
need thanks for the answer.
Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation P=108−23d P = 108 − 23 d , where P is the number of phones left and d is the number of days she has worked that week. What is the meaning of the value 108 in this equation?
Answer:
What 108 represents here is that the total number of phones she has to fix each week is 108 phones
Step-by-step explanation:
The linear equation is
P = 108-23d
compare this with the general form;
y = mx + c
we have;
P = -23d + 108
We can see that 108 represents the y-intercept in this case
The x-value at the y-intercept is 0
So what this mean is that the number of phones she has to fix each week is 108
Need help pleaseeee.
Answer:
m angle B=141
Step-by-step explanation:
a 7 sided shape has 900 total degrees
subtract all the known angkes to find your answer
900-90-148-142-130-129-120=141
hope this helps :)
can someone help me with this please
Answer:
x<-4
Step-by-step explanation:
First you have to add 4 by both sides, which will give you 8x<-32.
Then just divide both sides by 8 and you should get the same answer.
if x2=18x+y and y2=18y+x, then find the value of root
Answer:
[tex]\sqrt{x^2+y^2+1}=18[/tex]
Step-by-step explanation:
We are given:
[tex]x^2=18x+y\qquad\qquad[1][/tex]
[tex]y^2=18y+x\qquad\qquad[2][/tex]
Subtracting [1] and [2]:
[tex]x^2-y^2=18x+y-(18y+x)[/tex]
Operating:
[tex]x^2-y^2=18x+y-18y-x[/tex]
Recall:
[tex]x^2-y^2=(x-y)(x+y)[/tex]
Substituting:
[tex](x-y)(x+y)=18x+y-18y-x[/tex]
Rearranging:
[tex](x-y)(x+y)=18x-18y-(x-y)[/tex]
[tex](x-y)(x+y)=18(x-y)-(x-y)[/tex]
Dividing by x-y (recall x≠y):
[tex]x+y=18-1=17[/tex]
[tex]x+y=17\qquad[3][/tex]
Now we add [1] and [2]:
[tex]x^2+y^2=18x+y+18y+x[/tex]
Rearranging:
[tex]x^2+y^2=18x+18y+x+y[/tex]
[tex]x^2+y^2=18(x+y)+(x+y)[/tex]
[tex]x^2+y^2=19(x+y)[/tex]
Substituting from [3]
[tex]x^2+y^2=19*17=323[/tex]
Adding 1:
[tex]x^2+y^2+1=324[/tex]
Taking the square root:
[tex]\sqrt{x^2+y^2+1}=\sqrt{324}=18[/tex]
Thus:
[tex]\mathbf{\sqrt{x^2+y^2+1}=18}[/tex]
The reciprical of 312-938 is what number? If 23-3x=2 then x=y for 3
Answer:
-1/626 and for 23-3x=2 x=7
Step-by-step explanation:
A student measures the wingspans of 40 local dragonfly specimens selected at random. The sample mean is 6.8 centimeters with a margin of error of 0.9 centimeters. Based on this information, what are plausible values for the mean wingspans of the population of local dragonflies?
Explain or show your reasoning.
Answer:
6.8 - 0.9 = 5.9
Step-by-step explanation:
5.9 is the only average that seemed reasonable. Hope I helped.
According to the margin of error, it is found that plausible values for the mean wingspans of the population of local dragonflies are between 5.9 and 7.7 cm.
What is the margin of error of a measure?It is about how much the measure can plausibly differ from the sample mean.
In this problem, considering the sample mean of 6.8 cm and the margin of error of 0.9 cm, the bounds of plausible values are given by:
6.8 cm - 0.9 cm = 5.9 cm.6.8 cm + 0.9 cm = 7.7 cm.More can be learned about margin of error at https://brainly.com/question/25779324
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Elizabeth uses 34.95 ounces of granola for 15 servings of trail mix. If each serving contains the same amount of granola, how much granola is in each serving?
Answer:
2.33 ounces
Step-by-step explanation:
Given that:
Ounces of granola used = 34.95 ounces
Number of servings of trail mix = 15 servings
Since each serving contains the same amount of granola :
Amount of granola in each serving :
Ounces of granola used / Number of servings
34.95 / 15
= 2.33 ounces of granola per serving
procedure you are to give the scientific explanation to clarify the belief of the people in your locality and phenomena
1.red sky in the afternoon sunset
2. rainbows only appear after the rain
3. there's a pot of gold at the end of the rainbow
1.) As the sun light travels along path through as atmosphere to reach our eyes, the blue light has been mostly remove living mostly red and yellow light remain since red light waves are scattered the list by atmospheric gas molecules
2.) Rainbows are formed when it’s misty or spray the sky with water. It’s not solely just from after a rain; you only need water that can act at as prism and light to shine to create a rainbow.
3.) Having gold at the end of rainbow is just a myth since you can never reach the end of the rainbow. A rainbow is caused by dispersion of light in water droplet which is why they occur when sun comes out after rain.
What are the area and perimeter of square TUVW?
Area=
Perimeter=
Answer:
Area: 196
Perimeter: 56
Step-by-step explanation:
1. Pick a side for both length and height and count the distance between the two coordinates (for example VU and UT)
VU = 14
UT= 14
Also important to note here that you don't even need to count the distance for both because since it's a square, all the sides are the same. Only did this to make it easier to understand the next step.
2. Since it's a square, as I said before, all sides are the same. So, you can go ahead and mark WT and VW as 14 as well.
3. To get the area, use the formula base times height.
14 x 14 = 196
4. For perimeter, simply add up all the sides (or multiply 14 by 4 since all are the same)
14+14+14+14=56
Which algebraic expression has like terms?
9n7 - 2n+3-4112
7 + 3n-3-672
7n+4n-3m-6n?
612 -4n4+6n-5772
Answer:
the answer is 612 -4n4+6n-5772
The expression that has like terms is (C) 7n+4n-3m-6n.
What is an expression?An expression can be as simple as a single number or variable, or it can be more complex, involving multiple operations and variables.
For example, the expression "3x + 4" contains the variable x, along with the constant values 3 and 4, and the operations of multiplication and addition.
Like terms are terms that have the same variables raised to the same powers.
In the first expression, 9n^7 and -2n have different powers of n, so they are not like terms. The constant term, -4112, is also not like any other term.
In the second expression, 3n and -3 are like terms, as they are both constants with no variables.
In the third expression, 7n, 4n, and -6n are all like terms because they all have the same variable, n, raised to the first power.
In the fourth expression, -4n^4 and 6n have different powers of n, so they are not like terms. The constant term, 612-5772=-5160, is also not like any other term.
Therefore, the expression that has like terms is (C) 7n+4n-3m-6n.
To know more about an expression follow
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What percent is represented by the shaded portion on this 10 × 10 grid? A grid model has 100 squares. 76 squares are shaded. StartFraction 7.5 Over 100 EndFraction percent StartFraction 75 Over 100 EndFraction percent 7.5% 75%
Answer:
either b or d
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
are the lines y=x+4 and y=x-2 perpendicular
Answer:
no they are parallel because the slope is the same they just are at different y- intercepts
A store donated cases of crayons to a daycare center. Each case holds 24 boxes of crayons; each box holds 8 crayons. How many crayons did the center receive?
Answer:
192
Step-by-step explanation:
Just multiply 24 by 8.
I think thats it tho.
Answer:
I think its 192
Step-by-step explanation:
you just do 24 times 8
The cost of renting a jet ski for a certain number of hours can be modeled by
y=40x+50.
How much does it cost per hour?
Nathaniel invests money in an account paying a simple interest of 6% per year. If he invests $90 and no money will be added or removed from the investment, how much will he have in one year, in dollars and cents?
Answer:
95.40 total and 5.40 in intreset
Step-by-step explanation:
Answer:
A = $95.40
I = A - P = $5.40
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 6%/100 = 0.06 per year.
Solving our equation:
A = 90(1 + (0.06 × 1)) = 95.4
A = $95.40
The total amount accrued, principal plus interest, from simple interest on a principal of $90.00 at a rate of 6% per year for 1 years is $95.40.
BRAINIST & 20 POINTS!!
Answer:
y=2/3x-5
Step-by-step explanation:
First, let's put this equation into slope-intercept form.
2x-3y=24
-3y=-2x+24
y=2/3x-8
For two lines to be parallel, they must have the same slope. Therefore our slope is 2/3.
Now, we must find b. To do that we can plug the y and the x in.
-7=2/3(-3)+b
-7=-2+b
-5=b
y=2/3x-5
Answer:
y = [tex]\frac{2}{3}[/tex]x - 5
Step-by-step explanation:
Points: (-3, -7)
Equation: 2x - 3y = 24
2x - 3y = 24
-3y = -2x + 24
y = [tex]\frac{2}{3}[/tex]x - 8
y = [tex]\frac{2}{3}[/tex]x + b
-7 = [tex]\frac{2}{3}[/tex] ( -3 ) + b
-7 = -2 + b
b = -5
y = [tex]\frac{2}{3}[/tex]x - 5
A baby giraffe has a mass of 12 Kg. How many grams is the baby girafe?
Answer:
The answer is that the baby giraffe is 12,000 grams.
Please mark this as brainliest, thx. :)
Coach Teague is making breakfast for his 6 family members. He is making bacon and omelets. Each omelet needs 3 eggs, how many eggs does he need?
Answer:
18 eggs
Step-by-step explanation:
6 family member has 1 omelet, each omelet needs 3 eggs, 6 x 3 = 18 eggs :D
13 erasers in your backpack is considered
a what?
Hey guys so tommorow I have to sing infront of the class but I don't have any song ideas. Give me you best song suggestions!
Answer:
Lost Boy, One Call Away, Train wreck, Sad song?
Step-by-step explanation:
Those are just some songs I thought of their not the best but hope it helps some. And good job on singing hope you do well... YOU GOT THIS!! Have a nice day stranger!!
Write the following expressions in Standard form
-3•2•a+5(7b)+(12•c•4)
The parking lot charges 75 cents for each half hour or part of a half hour. If Edie parks her car in the lot from 10:45 am until 1:05 pm, how much money will she pay?
Answer:
she will pay $3.75
Step-by-step explanation:
Simplify Negative 3 over 2 ÷ 9 over 6 . (5 points) -4 -1 4 1
Answer:
Step-by-step explanation:
[tex]\frac{3}{2}[/tex] ÷ [tex]\frac{9}{6}[/tex] = [tex]\frac{3}{2}*\frac{6}{9}\\[/tex]
= [tex]\frac{18}{18}[/tex]
= 1
Use KCF method,
Keep the first number.
Change the division to multiplication
Flip the second number
Answer:
sorry dude i need thos points
Step-by-step explanation: