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3 years ago

(-8) + (+12) what is the answer to this can someone please write it out clearly?

Mathematics

2 answers:

nata0808 [166]3 years ago

7 0

Answer:

The answer is 4

Step-by-step explanation:

Since you have negative 8 when you add 12 it is like you are just adding 8 making the number 0 and then add the rest from the 12 which is 4

Marina86 [1]3 years ago

5 0

Answer:

Step-by-step explanation:

so here since -8 is smaller then 12 your basically subtracting. In simpler terms its basically just 12-8

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You have 8 gallons of lemonade to sell. You use cone-shaped cups that are 9 centimeters in diameter and 12 centimeters tall. Eac

andre [41]

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

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

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Each cup can hold 254.34 cubed centimeter of lemonade.

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Let,

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

254.34x=30280

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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3 years ago

(-8) + (+12) what is the answer to this can someone please write it out clearly?​

(-8) + (+12) what is the answer to this can someone please write it out clearly?