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2 years ago

7

In the community park, there are 7 oak trees and 4 maple trees. Which ratios show the number of oak trees to the number of maple

trees?
(Choose 2)

1 answer:

SpyIntel [72]2 years ago

5 0

Answer:

A and D

Step-by-step explanation: sorry i didn't answer it sooner

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Serhud [2]

Answer:

-8

Step-by-step explanation:

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4 years ago

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3 years ago

A n-faced regular polyhedron consists of 2n edges and (2n-4) vertices. Find n .

ira [324]

We could use Euler's polyhedron formula:

$F=n\qquad\qquad\text{(Faces)}\\\\E=2n\qquad\qquad\text{(Edges)}\\\\V=2n-4\qquad\qquad\text{(Vertices)}\\\\\\V-E+F=2\\\\2n-4-2n+n=2\\\\-4+n=2\qquad|+4\\\\\boxed{n=6}$

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4 years ago

Sophia and isabella get a reward of 117 dollars ina ratio of 1:8.What fraction of the reward does sophia get?

worty [1.4K]

Answer:

The amount of reward that Sophia receives is $\$13$

Step-by-step explanation:

Let

x------> amount of reward that Sophia receives

y-----> amount of reward that Isabella receives

we know that

$\frac{x}{y}=\frac{1}{8}$

$x=\frac{1}{8}y$ ------> equation A

$x+y=117$ -----> equation B

Substitute equation A in equation B

$\frac{1}{8}y+y=117$

$\frac{9}{8}y=117$

$y=117*8/9=\$104$

Find the value of x

$x=\frac{1}{8}(104)=\$13$

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3 years ago

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4 years ago