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3 years ago

10

Lauren would like to have an average of 88 in her math class. There are five assignments with the following grades: 85, 100, 88,

80, 95. What grade will lauren need to make on the last assignment to meet her goal

1 answer:

daser333 [38]3 years ago

7 0

80
85+100+88+90+95+80=528
528/6=80

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3 years ago

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You will need 119 cups to sell all of the lemonade.

Step-by-step explanation:

Given,

Diameter of cups = 9 cm

Radius of cup = $\frac{Diameter}{2}=\frac{9}{2}=4.5\ cm$

Height of cups = 12 cm

We will find volume of cup.

$Volume = \frac{1}{3}\pi r^2h\\$

Putting all the values

$Volume=\frac{1}{3}(3.14)(4.5)^2(12)\\\\Volume=\frac{1}{3}(3.14)(20.25)(12)\\\\Volume= \frac{763.02}{3}\\\\Volume= 254.34\ cm^3$

Therefore;

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Let,

x = Number of cups

Volume of lemonade in one cup * Number of cups = Volume of 8 gallons

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Dividing both sides by 254.34

$\frac{254.34x}{254.34}=\frac{30280}{254.34}\\x=119.05$

Rounding off to nearest whole number

x = 119

You will need 119 cups to sell all of the lemonade.

Keywords: volume, division

Learn more about volume at:

#LearnwithBrainly

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Answer:

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