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d1i1m1o1n [39]
3 years ago
13

Betsy is ordering prizes for a school fair. She must order 2 helium balloons for every 5 people and 3 stuffed animals for every

8 people. Organizers expect 120 people to attend the fair. TRUE OR FALSE: Betsy orders 48 helium BALLOONS
Mathematics
1 answer:
kvasek [131]3 years ago
5 0

Answer:

True, she would need to order 48.

Step-by-step explanation:

If you divide the expected number of people (120) by the number of balloons per person (120 divided by 5) then multiply that by 2 you get 48.

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Answer:

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Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z----> the scale factor

x----> volume of the larger solid

y----> volume of the smaller solid

z^{3}=\frac{x}{y}

we have

x=125\ in^{3}

y=27\ in^{3}

substitute

z^{3}=\frac{125}{27}

z=\frac{5}{3}

step 2

Find the surface area of the larger solid

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

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y----> surface area of the smaller solid

z^{2}=\frac{x}{y}

we have

z=\frac{5}{3}

y=63\ in^{2}

substitute

(\frac{5}{3})^{2}=\frac{x}{63}

x=\frac{25}{9}*63=175\ in^{2}

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