MATHEMATICS MIDDLE SCHOOL

Emily buys a toaster during the sale for 10% off. If Emily pays $36, what was the original price?

Answers

Answer 1
Answer: 100-10=90%
make proportion
x$-100%
36$-90%
x*90=100*36
x=3600/90
x=40$
Answer 2
Answer:

Answer:

$40

Step-by-step explanation:

so first you do 34792x3957935 then you get 137704474520  and because it is 10% you make it .04 making that 40$

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What is the surface area of the rectangular pyramid below?(Image)

A. 386.9 ft2
B. 593.8 ft2
C. 639.4 ft2
D. 1,053.2 ft2

Answers

Answer:

The correct option is B.

Step-by-step explanation:

The area of pyramid is the sum of area of rectangular base and 4 triangular sides. Two triangle have base 18 ft and height 14.1 ft. Other two have base 10 ft and height 16 ft.

The area of rectangle is

A=length* width

Length of the base is 18ft and width is 10ft.

A_1=18* 10=180

The area of a triangle is

A=(1)/(2)* base * height

The area of triangle with base 18 ft and height 14.1 ft is

A_2=(1)/(2)* 18 * 14.1=126.9

The area of triangle with base 10 ft and height 16 ft is

A_3=(1)/(2)* 10 * 16=80

The total surface area of the rectangular pyramid is

A=A_1+2* A_2+2* A_3

A=180+2* (126.9)+2* (80)

A=593.8

The surface area of the rectangular pyramid is 593.8 ft². Therefore the correct option is B.

Answer:

it is B

Step-by-step explanation:

198.9 grams equals how many ounces?

Answers

Simply the answer is 7 ounces :D

Factor 6y 2 - 48 + 42y.

(6y + 8)(y - 6)
6(y + 8)(y - 1)
6(y - 1)(y - 7)

Answers

Answer:

6 (y + 8) (y - 1)

Step-by-step explanation:

Factor the following:

6 y^2 + 42 y - 48

Factor 6 out of 6 y^2 + 42 y - 48:

6 (y^2 + 7 y - 8)

The factors of -8 that sum to 7 are 8 and -1. So, y^2 + 7 y - 8 = (y + 8) (y - 1):

Answer: 6 (y + 8) (y - 1)

PS: it's really helpful to pose the question correctly 6 y^2 + 42 y - 48  NOT

6y 2 - 48 + 42y

Answer:

6 (y + 8) (y - 1)

Step-by-step explanation:

Sally has 2 cups of flour .she uses 3/4 cup to bake muffins and 3/8 cup flour to bake cookies and 3/8 cup flour for pancakes .how much flour does Sally have left?

Answers

Hai
Sally has 2 cups of flour .she uses 3/4 cup to bake muffins and 3/8 cup flour to bake cookies and 3/8 cup flour for pancakes .how much flour does Sally have left?

1/2
I believe the best answer would be 1/2 a cup of flour
I hope this helped

Use the number line to find the difference of 2 1/2 -9.

Answers

-6 1/2

If you start at 2 1/2 and go back -9 you will end up with -6 1/3
-6 1/2 because if you have 2 and 1/2 and take away 9 you get the Answer: -6 1/2 checking work and I’m right .

Chad buys peanuts in 2 pounds bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2 pound bags of peanuts should Chad buy so that he can fill the 5/6 pound bags without having any peanuts left over?

Answers

think about it this way, that for every 5/6 pound bag you are losing 1/6 and 1/6*12=2 therefore the answer is 12
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