Mathematics High School

Expand: y(0.5 +8)
Expand: 4(3+4x-2)

Answers

Answer 1

Answer:

.5y+8y=

8.5y

12+16x-8=

16x+4

Step-by-step explanation:

use the distributive property to solve the equation then simplify and combine like terms

Related Questions

1. observe the following tables and find if x and y are directly proportional:

Give answer plzz​

Answers

yes here x and y are directly proportional when looking at the x-coordinate

Step-by-step explanation:

here,

x1=7, y1=14

x/y=7/14

=1/2.

when considering the second coordinates,

X2=9/18

=we will get the answer again

1/2.

all the coordinates is proportional in this form it is all will get the answer one by two so this x -axis and y-axis are directly proportional

1.If a shirt costs 60 dollars, it's marked down to 20% off, what is the amount of the discount?

Answers

Answer:

$12.00

Step-by-step explanation:

20% of $60 is $12.

what is the value of x?

Answers

Answer:

x = 6

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

[tex]\frac{FG}{MN}[/tex] = [tex]\frac{GH}{NP}[/tex] , substitute values

[tex]\frac{12}{x}[/tex] = [tex]\frac{20}{10}[/tex] = 2 ( multiply both sides by x )

12 = 2x ( divide both sides by 2 )

6 = x

i’ll mark brainliest or whatever

Answers

Answer:

i think its 75 because 90 should equal x+15 so 90-15=75

2.)
Find the perimeter of an isosceles triangle whose base is 16 cm and whose height is 15 cm.

Answers

Answer:

50 cm

Step-by-step explanation:

The altitude from the vertex to the base bisects the base and divides the triangle into 2 right triangles.

Using one of the right triangles with legs 8 and 15 , then hypotenuse h is

h² = 8² + 15² = 64 + 225 = 289 ( take the square root of both sides )

h = [tex]\sqrt{289}[/tex] = 17

The 2 congruent sides of the isosceles triangle are 17 cm

Then the perimeter P is

P  = 17 + 17 + 16 = 50 cm

7) 4r^2- 12r + 5=0 in quadratic form​

Answers

Answer:

(2r-1)(2r-5)

Step-by-step explanation:

4r^2-10r-2r+5=0

2r(2r-5)-(2r-5)

(2r-1)(2r-5)

Plz help!!!!!!!!!!!!!!!!!!!!!

Answers

So we need to find the unit rate (the denominator is 1). Divide 18 by 3 to find the amount of miles in 1 day. 18/3=6. So m=6d. To find the number of miles in 10 days, you can make an equation 1/6=10/x. x=60, so the number of miles Henry will bike in 10 days is 60 miles. Repeat with the second chart

6 3/7 as a improper fraction

Answers

Answer:

45/7

Step-by-step explanation:

6 × 7 = 42 + 3 = 45

45/7

good luck i hope this helps :)

Answer: 45/7

Step-by-step explanation:

Multiply the denominator by the whole number

7*6

Add the answer from Step 1 to the numerator

42+3=45

Write answer from Step 2 over the denominator

45/7

In decimal form:

6.42

Please guy help me I will mark you as brainliest if you give me a good answer !!

You are selling candy bars for
$2.50 each. The cost of those
candy bars was $1.25 plus a setup
fee of $200 for manufacturing.

1) what is the profit from selling 220 candy bars?

Answers

Answer: 75 dollars

Step-by-step explanation:

220 times 2.5 is 550 which means you make 550 dollars. However, it cost 4575 dollars to make the candy bars because 220 times 1.25 is 275 and 275+200 is 475. You have to subtract 475 from 550 to get your answer which is 75 dollars.

Answer:

$75

Step-by-step explanation:

multiply total bars by cost 275+ 200=475

multiply total bars by sale price =550

A coupon discounts the total grocery bill by $3.50. How many dollars g is the bill after the discount if the bill before the discount is b dollars? Write an equation to represents the situation.

Answers

Answer:

g=b-3.50

Step-by-step explanation:

G=B-3.50 duh hahahahahahahah lol I smart

Need help with questions 3

Answers

Answer:

Step-by-step explanation:

B

Answer:

1. I cant see 2. 32 3.60

Step-by-step explanation:

factor 9x-12xy plss help thx

Answers

The answer is 3x(3-4y)
If this answer helped you please consider making this answer brainliest :)

Henry decided he was going to give away his Pokemon cards. He divided them equally into 4 piles. Each person got 37 cards. How many cards did Henry have in the beginning?

pls help i need the answer and the equation

Answers

Answer:

37 x 4 = 148

148 cards

Step-by-step explanation:

Would really appreciate it if you could give me brainliest. Have a good day! :)

Answer:

37×4 = 148

Step-by-step explanation:

so your answer is 148

WRITE AN EXPRESSION WITH ATLEAST FIVE TERMS THAT SIMPLIFIES TO 9X+25​

Answers

Answer: 19 + 11x - 7 - 2x + 13

Step-by-step explanation:

19 + 11x - 7 - 2x + 13

Bring like terms together

11x - 2x + 19 - 7 + 13

9x + 12 + 13

9x + 25

Keisha is saving money to buy a game. So far she has saved $24, which is three-fourths of the total cost of the game. How much does the game cost?

HELPPPPP

Answers

Answer:

32 dollars is the cost of the total game

Step-by-step explanation:

24 divided by 3 is 8

8 times 4 is 32

please help with this

Answers

Answer:

I think its 153.94 inches squared

Answer:

i love you :)

Step-by-step explanation:

A = 3.14 × (14 ÷ 2)²

A = 3.14 × 49

A = 153.86

What is the height of the screen?

Answers

Answer:

2880

Step-by-step explanation:

how many grams are in 4.0 moles of H2O

Answers

Answer:

There are 72.06 grams in 4 moles of H2O. I hope this helps!

The equation of a line is y= -3x - 18. What are the coordinates of the point on the
line when the value of yis 3?

Answers

Answer:

-7

Step-by-step explanation:

3=-3x-18

3x=-18-3

3x=-21

x=-7

can u pls help me i need help​

Answers

Answer:

cbbbbb

Step-by-step explanation:

Her equation is wrong. It should be
(20)(0.85)(1.06) = 18.02

20 x 0.85 = 17, the price after the 15% discount. Cat’s equation added 15%.

You could also do 20 x 0.15 = 3, the amount of the discount, and subtract from $20.

17 x 0.06 = 1.02, the amount of tax
Total cost = 17 + 1.02 = 18.02
This tax part is represented by the 1.06 in the equation. The sale price + 0.06 of that price in tax.

Let me know in the comments if you have questions.


Pairs of shoes are manufactured for $24. They are sold to a warehouse with a mark-up of 15%. The warehouse sells the shoes to a distributor after charging a holding fee of $10 per pair. The distributor sells them to ‘Fine Shoes’ for a percentage profit of 12%. The store then marks them up by 30%.


a. Determine the price of a pair of shoes if you buy it from one of the ‘Fine Shoes’ stores (round to the nearest 5 cents). Show working out.

Answers

Answer: ‭$54.75

Step-by-step explanation:

The price the shoes are sold to the warehouse is:

= 24 * ( 1 + 15%)

= 24 * 1.15

= $27.60

The price the warehouse sells it is:

= 27.60 + 10

= $37.60

Price distributor sells is:

= 37.60 * 1.12

= $42.112

Fine shoes will then sell at 30% profit:

= 42.112 * 1.3

= $‭54.7456‬

= ‭$54.75

Find the value of y ​

Answers

Answer:

y=3/2

Step-by-step explanation:

.......................

need help please somebodt

Answers

A≈21.46
First you find the area of the square

A=a^2 which is
=10^2
A=100

Then you find the area of the circle
A=πr^2
= π(5)^2
A≈78.54

Now you subtract the 78.54 from 100 to get 21.46

Do not really speak Spanish need help

Answers

The answer is d hope this helps
D is the answerrrrrrrrrrr

What’s the area of this parallelogram

Answers

Answer:

360%

if not u question isnt correct

hope this might help you

Answer: Multiply the base by the height

for example A=B x H

Step-by-step explanation:

Enter the correct answer in the box.
The formula for centripetal acceleration, a, is given by this formula, where v is the velocity of the object and r is the object’s distance from the center of the circular path:
a=v^2/r
.

Solve the formula for r.

Answers

Answer:

Step-by-step explanation:

For this case we have the following equation:

a = v ^ 2 / r

From here, we must clear the value of speed.

We have then:

v ^ 2 = a * r

v = root (a * r)

Answer:

the formula for the velocity is:

v = root (a * r)

A triangle has an area of 36 square meters. What could its base and height be?

b = 12 m, h = 6 m
b = 9 m, h = 4 m
b = 9 m, h = 9 m
b = 8 m, h = 9 m

Answers

Answer:  b = 9 m, h = 4 m

Step-by-step explanation:

9x4 equals 36, but all of these other answers do not equal 36. :)

Answer:

 b = 9 m, h = 4 m

Step-by-step explanation:

What is the equation of a line that goes THROUGH (-2, 3) and is PERPENDICULAR to the line
y = -3x+2

Answers

3=-2+B. +2 +3 B=5 “y=1/3x+5” in perpendicular lines slope1times slope 2 creates a negative (-1) example(-3/1)(1/3)=-1 so slope 1 multiplied by slope 2 is the opposite inverse which creates a negative 1

Which ones are true?

Answers

Answer:

The last three answers.  

Step-by-step explanation:

y = 5x - 9
y - 5x = 4
(3,2)
no solution
an infinite number of solutions

Answers

Answer:

(3, 2)

2 = 5 x 3 - 9

  = 15 - 9

  = 6

2 is not = 6

y = 5x - 9

y - 5x = -9

y - 5x = 4

Use elimination

-15

ANSWER: So there are no solutions

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