Can someone help me with 8-grade math homework, please

Can Someone Help Me With 8-grade Math Homework, Please

Answers

Answer 1

Answer:

so y=7.25x+9.99 where y is the total money they spend, and the x is the total number of they want to bought jersey which is 20,

So here it's equation:

y=7.25(20)+9.99

y= 145+9.99

y=154.99, therefore the total is 154.99

and the second one is find and explain the mistake

the y values is the mistake when you equate the number of x to the equation given so the true answer of that table if you use the equation is:

X Y

2 0

3 -2

4 -4

5 -6


Related Questions

The left and right page numbers of an open book are two consecutive integers whose sum is 23. Find these page number.

Answers

Answers: The page numbers are 11 and 12

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

Explanation:

Consecutive integers are ones that follow immediately after another. For example, the set {7,8,9,10} are consecutive.

Let,

x = first page, some positive whole numberx+1 = second page, follows immediately after page x

Adding those two said pages will lead to 23

first + second = 23

(x) + (x+1) = 23

2x+1 = 23

2x = 23-1

2x = 22

x = 22/2

x = 11 is the first page

x+1 = 11+1 = 12 is the second page

Check: 11+12 = 23 which confirms the answers.

√4x^2/3y
Please show work if you can

Answers

Answer:

√16x/3y

Step-by-step explanation:

√4x^2 = √16x /3y = can't be simplified further

3.4x-7.2=5.8x+24
I need help

Answers

3.4x - 7.2 = 5.8x + 24
3.4 - 5.8x = 24 + 7.2
-2.4x = 31.2
-2.4x / -2.4 = 31.2 / -2.4
x = -13

What are the three forms a solution can
written in?

Answers

Answer:

solid solutionliquid solutiongas solution

Write 16 as a percentage of 54, give your answer correct to the nearest whole number.

Answers

Answer:

30

Step-by-step explanation:

16/54 as a percentage is 29.6296%. round up to get the nearest whole number.

29.6296 rounded up is 30

Answer:

16 = 30% of 54

Step-by-step explanation:

16/54 =x/100

(16/54)(100%) = x

(0.296)(100%) = x

29.6% = x

30% = x

What is the value of T in this exterior angle

Answers

Answer:

t =30

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the opposite interior angles.

t + (2t-28) = t+32

Combine like terms

3t -28 = t+32

Subtract t from each side

3t -28-t = t+32-t

2t -28 = 32

Add 28 to each side

2t-28+28 = 32+28

2t = 60

Divide by 2

2t/2 = 60/2

t =30

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Exterior Angle of a triangle is equal to the sum of two opposite interior angles of the same triangle, so

[tex]t + 32 = t + 2t - 28[/tex]

[tex]t + 32 = 3t - 28[/tex]

[tex]3t - t = 32 + 28[/tex]

[tex]2t = 60[/tex]

[tex]t = 30 \degree[/tex]

value of t = 30°

What expressions is equivalent to 5 to the power of 8

Answers

The first one and the second one

Answer:

Step-by-step explanation:

5¹⁶ ÷ 5² = 5⁽¹⁶ ⁻ ²⁾ = 5¹⁴  ❌

(5²)⁶ ÷ 5⁴ = 5⁽¹² ⁻⁴⁾ = 5⁸ ✅

5² × 5⁴ = 5⁽²⁺⁴⁾ = 5⁶ ❌

(5⁴)² = 5⁸ ✅

5⁻¹ × 5⁹ = 5⁻¹ ⁺ ⁹ = 5⁸ ✅

5⁻¹ × 5⁻⁸ = 5⁻¹ ⁺ ⁽⁻⁸⁾ = 5⁻⁹ ❌

PLEASE HELP ASAP IT'S REALLY IMPORTANT!!!

Answers

Answer:

why

Step-by-step explanation:

I thought something happened to you why did u never come back,why just ghost me of all people not only once but twice

what is the distance between - 24 and 11

Answers

Answer:

13

24-11 = 13

Step-by-step explanation:

Answer:

35 units

Step-by-step explanation:

The distance is the absolute value of the difference between the coordinates of end points:

d = |-24 - 11| = | - 35| = 35 units

What is the valeu of x?
1/2x -2 =4

Answers

Answer:

12

Step-by-step explanation:

1/2x = 6

x = 12

Answer:

x=12

Step-by-step explanation:

half of 12 is 6. 6-2=4

Help me, please!! I have other math questions up if you guys could help with that too!

Find the value of x and y.

Answers

Answer:

x=25, y=19

Step-by-step explanation:

130+2x=180

x=25

54+2x+4y=180

y=19

Answer:

x = 25 , y = 19

Step-by-step explanation:

130° and 2x° are adjacent angles on a straight line and sum to 180° , so

130 + 2x = 180 ( subtract 130 from both sides )

2x = 50 ( divide both sides by 2 )

x = 25

--------------------------------------------------------------

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

130° is an exterior angle of the triangle , then

54 + 4y = 130 ( subtract 54 from both sides )

4y = 76 ( divide both sides by 4 )

y = 19

You and 3 friends are going to the country fair. You have a coupon that will save your group $20. If the total bill to get into the fair was $100, how much does one regular price ticket to the fair cost?

Answers

Answer:

30$

Step-by-step explanation:

lets assume you didn't have a coupon then the total bill would have been 120$

so for 4 friends including u the bill would have been 120$

: 4 friends = 120 $

for : 1 friend = x$

cross multiply

4x = 120 × 1

4x =120

divide both sides by the coefficient of x

x =120 \ 4

x = 30$

therefore: 1 friend = 30$

Mr. Sayre purchased one can of peanuts and some apples. One can of peanuts cost $4. The apples cost $2 per pound. There was no tax on Mr. Sayre's purchase. Mr. Sayre spent $13.
How many pounds of apples did he purchase?

Answers

Answer:

He purchased 4 1/2 pounds of apples.

Step-by-step explanation:

Total of 13 dollars

One can of peanuts cost 4 dollars so subtract 4 from 13

You have 9 dollars that you spent on apples

if the apples cost 2 dollars per pound

divide

(how many times 2 can go in 9)

Only 4.5 (AKA 4 1/2)

9 divded by 2

Name one other disaster involving NASA astronauts?

Answers

Answer:

apollo 1

Step-by-step explanation:

Square root of 15 rounded to the nearest tenth

Answers

Answer:

3.9

√15=3.87298334... so rounded to the tenth is 3.9

8n - 7 = -5(-3n - 7)
Solve Multi-Step equation.
Please explain how you i can understand too!

Answers

Answer:

n=-6

Step-by-step explanation:

8n-7=-5(-3n-7)

Multiply -5 to -3n and -7

8n-7= 15n+35

Bring 8n to the other side by subracting it from 15n

-7=7n+35

Subtract 35 from both sides

-42=7n

Divide both sides by 7

n=-6

What is negative 9 divided by 2?

Answers

9 divided by 2 is 4.5

Answer:

-[tex]\frac{9}{2}[/tex] = -4.5

Step-by-step explanation:

-9 ÷ 2

Fraction [tex]\frac{-9}{2}[/tex] can be written as [tex]-\frac{9}{2}[/tex] by extracting the negative sign.

[tex]-\frac{9}{2}[/tex]

Factor:

[tex]\frac{(-1)x3^{2} }{2}[/tex] = -4.5

Help pls
what is the slope intercept form of (-1,8) and (3,6)

Answers

Answer: y = -1/2x+15/2

Step-by-step explanation:

Hope this helps!

CAN SOMEONE PLEASE HELP!!! IM GONNA FAIL, ILL GIVE U BRAINLIST
What are the coordinates of F after a reflection over the line y=1? Give your answer in the format (#,#)

Answers

(-1,7) is the answer I think

Answer:

So for the coorfinates of F, you have to see how far it is from y=1. The F is 2  points under the 1 so you have to count 2 above the 1. So the point would be (7,3). Same for the other ones. For example like D. It's 2 above 1 so its going to be 2 under which would result in (1, -1)

four times a number increased by 5 is equal to45​

Answers

Answer:

Your answer is 10.

Step-by-step explanation:

45 - 5 = 40

40 / 4 = 10

Hope this helps!

Answer:

45-4=41

41-4=10

Step-by-step explanation:

10*4=40

Chealsea has 7/8 pound of butter to make icing. Each batch if icing needs 1/4 pound of butter. Write and solve an equation that models the situation. Then interpret the quotient

Answers

Answer:

Chelsea can make 3 [tex]\frac{1}{2}[/tex] batches of icing with 7/8 pounds of butter.

Step-by-step explanation:

7/8 ÷ 1/4  (reciprocate 1/4 to replace division sign with multiplication sign)

= 7/8 x 4/1

= 28/8

= 7/2

= 3 [tex]\frac{1}{2}[/tex]

This means that Chelsea can make 3 [tex]\frac{1}{2}[/tex] batches of icing with 7/8 pounds of butter.

I hope this helps :)

A laptop has a listed price of $503.98 before tax if the sales tax rate is 7.5% find the total cost of the laptop with sales tax included

Answers

Answer:

The tax would be roughly $37.79, which means the laptop would be overall $541.77.

Oigan me pueden resolver todo esto por favor,ya me lo están pidiendo y es para hoy porfavor!

Answers

Answer:

No ingles

Step-by-step explanation:

Sorry not sorry

( BRAINLIEST QUEATION)
Before Ahmed started to diet. his mass was 108kg. His mass now is 88kg. What percentage of his original mass has he lost?

Answers

Answer:

Step-by-step explanation:

Weight decreased = 108 - 88 =  20 Kg

Percentage decrease = [tex]\frac{20}{108}*100[/tex]

                   = 18.52%

Find x. 1.1 review ANSWERS

Answers

Hello,
The answer is x is 19/6.

The price of an item yesterday was $130. Today, the price rose to $299. Find the percentage increase.

Answers

Answer:

130%

Step-by-step explanation:

Use the formula for percent change: difference = % * original price

To find the difference, you have to do 299 - 130, which is 169.

The original price is $130 because this is the price before it rose to $299.

Now, you have the equation 169 = % * 130.

We don’t know the percentage right? No, so we have to find the percentage by dividing 169 by 130, which gives you 1.3. Lastly turn 1.3 into a percentage by multiplying 1.3 by 100, and 1.3 as a percentage is 130%. So therefore, the percent increase is 130%.

130%

Step-by-step explanation:

Yesterday = $130.

Today = $299 .

((final price - initial price)/(initial price)) × 100%

= (($299 - $130)/$130) × 100%

= ($169/$130) × 100%

= $1,3 × 100%

= 1,3 × 100%

= 130%

WILL MARK BRAINLIEST
Translate into expression
The product of six and a number added to three

Answers

Answer:

6x+3

Step-by-step explanation:

If you like my answer than please mark me brainliest

Why is everything so fast

Answers

Answer:

Because your mind make you think that

Answer: Time doesn't wait for you

If marked price = $1700, selling price = $1540 Then find the discount?​

Answers

Answer:

1700-1540=160

Answer:

1700-1540=160

mp=160/1540*1700

17'1630

Solve for x plzzzzzzzz

Answers

Answer:

x=5

Step-by-step explanation:

Since the two angle are corresponding, they have equal measure

therefore, 22x=110

now that we have produced an equation, solve for the value of x

22x/22 = 110/22

x=5

hope this helps :)

Answer:

22x=110° (corr angles)

x=110÷22

=5

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