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2 years ago

15

The first modern humans appeared on Earth about 200,000 years ago. Would it be possible to measure that number in terms of feet

on the football field? Explain your answer.

1 answer:

Marina86 [1]2 years ago

8 0

Hi um i know this answer is 79

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How to find the volume of a cone?<br> Height- 8 in.<br> Diameter- 7 in.

mestny [16]

The formula for the volume of a cone is V = $\pi r^{2} \frac{h}{3}$

So the answer is 102.63

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3 years ago

Brandon answered 21 of the 25 questions on his history test correctly. What decimal represents the fraction of problems he answe

mamaluj [8]

Answer:

.84

Step-by-step explanation:

21/25 = .84

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2 years ago

Math question on big ideas math the 1/3 confuses me I hate fractions

jok3333 [9.3K]

a simple way to do away with denominators, is we can simply multiply both sides by the LCD, in this case the LCD is 3, so let's multiply both sides by 3.

$\bf 3\left( \cfrac{1}{3}x+y \right)=3(4)\implies x+3y=12\implies 3y=12-x
\\\\\\
y=\cfrac{12-x}{3}\implies \stackrel{\textit{distributing the denominator}}{y=\cfrac{12}{3}-\cfrac{x}{3}}\implies y=4-\cfrac{1}{3}x$

6 0

3 years ago

Help me anyone plzzzzz????

jek_recluse [69]

For the first one, to find the missing fraction, add the first two fractions and subtract that from the last fraction. For the second question, subtract the first two fractions then add that to the last fraction. Hope this helps.

6 0

3 years ago

Dave works two jobs. He works at the grocery store making $12 per hour and works at the car wash making $15 per hour. If he work

vladimir2022 [97]

Answer:

11 hours

Step-by-step explanation:

let he works at first store x hours and at car wash y hours. Then

x+y=25

multiply by 4

4x+4y=100 ...(1)

12x+15y=333

divide by 3

4x+5y=111 ... (2)

(2)-(1) gives

y=111-100=11

8 0

3 years ago