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Neporo4naja [7]

3 years ago

7

Suppose that an individual has a body fat percentage of 18.8% and weighs 131 pounds. how many pounds of her weight is made up of

fat? round your answer to the nearest tenth.

2 answers:

Anna007 [38]3 years ago

5 0

131 pounds - 100%
x pounds ---18.8 %
x=131*18.8/100=24.6 lb is made up of fat

balu736 [363]3 years ago

4 0

X weight 131
---- = -------------
18.8% 100%

Cross multiply and get 24.6 pounds

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Can someone please help me solve 91

Mashcka [7]

$3x^3+7x^2-20x=0\\
x(3x^2+7x-20)=0\\
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x(x(3x-5)+4(3x-5))=0\\
x(x+4)(3x-5)=0\\
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5 0

3 years ago

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Please help <br> Show workings <br> Pleasssssseeeeee

Ad libitum [116K]

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3 years ago

A glass paperweight has a composite shape: a square pyramid fitting exacty on top of an 8 centimeter cube. The pyramid has a hei

ArbitrLikvidat [17]

Answer:

Part 1) The volume of the paperweight is $576\ cm^{3}$

Part 2) The total surface area of the paperweight is $400\ cm^{2}$

Step-by-step explanation:

Part 1) what is the volume of the paperweight?

we know that

The volume of the paperweight is equal to the volume of the square pyramid plus the volume of the cube

step 1

Find the volume of the pyramid

The volume of the pyramid is equal to

$V=\frac{1}{3}BH$

where

B is the area of the square base

H is the height of the pyramid

$B=8^{2}=64\ cm^{2}$

$H=3\ cm$

substitute

$V=\frac{1}{3}(64)(3)=64\ cm^{3}$

step 2

Find the volume of the cube

The volume of the cube is equal to

$V=b^{3}$

$V=8^{3}=512\ cm^{3}$

step 3

Find the volume of the paperweight

$64\ cm^{3}+512\ cm^{3}=576\ cm^{3}$

Part 2) what is the total surface area of the paperweight?

we know that

The total surface area of the paperweight is equal to the surface area of 5 faces of the cube plus the lateral area of the pyramid

step 1

Find the surface area of 5 faces of the cube

$SA=5b^{2}$

$SA=5(8^{2})=320\ cm^{2}$

step 2

Find the lateral area of the pyramid

$LA=4[\frac{1}{2}bh]$

$LA=4[\frac{1}{2}(8)(5)]=80\ cm^{2}$

step 3

Find the total surface area of the paperweight

$320\ cm^{2}+80\ cm^{2}=400\ cm^{2}$

8 0

3 years ago

Which size can of green beans shown in the table has the lowest unit price?

posledela

The can of green beans that has the lowest unit price is the 8 oz. size.

To find the unit price of each size, divide the cost by the size. (A number below that's in parentheses means it goes on forever)

0.89 ÷ 6 = 0.148(3)
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2 years ago

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svetlana [45]

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8 0

3 years ago

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