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g100num [7]
3 years ago
14

Solve for x.... 2/7=x/13

Mathematics
1 answer:
Yuki888 [10]3 years ago
4 0
X/13 2/7
X=2/7*(13)
X=26/7 Final Answer
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A team of runners ran a relay race. Each runner ran 7 1/2 kilometers. The total length of the race was 45 kilometers. Write and
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Answer:

6 runners

Step-by-step explanation:

Each runner ran 7.5 km.  If there were n runners, then (7.5 km)n = 45 km.

Solve this for n by dividing 7.5 km into 45 km:

n = 6

There were 6 runners.

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Need help for this Algebra question plz!
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Answer:

2x+5y=-15

ax+bx=c

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You design a new app for cell phones. Your revenue for x downloads is given by f(x) = 3x Your profit
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Answer:

p = 2.7x - 20

p(90) = $223

Step-by-step explanation:

revenue → f(x) = 3x  ,where x is the number of downloads.

the statement “Your profit p is $20 less than 90% of the revenue for x downloads”

<u><em>means</em></u>

p=90\% f\left( x\right)  -20

<u><em>means</em></u>

<u><em></em></u>p=\frac{90}{100} \times f\left( x\right)  -20

<u><em>means</em></u>

p=\frac{9}{10} \times (3x)  -20

<u><em>means</em></u>

p=\frac{9}{10} \times (3x)  -20

<u><em>means</em></u>

p=2.7x -20

………………………………

the profit for 90 downloads :

= p(90)

= 2.7×(90) - 20

= $223

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2 years ago
How many more vertices does a rectangular prism have, compared to triangular pyramid?
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