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3 years ago

10

Jason is j years old, and Stella is s years old. Stella is 3 years older than Jason. Which equation properly compares their ages

?

1 answer:

Bess [88]3 years ago

8 0

J+3=s
...............

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Lisa drove 819 miles 13 hours. At the same rate, how long would it take her to drive 504 miles?

Damm [24]

Answer:

The answer is

<h2>8 hours</h2>

Step-by-step explanation:

To solve this question we use ratio and proportion

From the question

Lisa drove 819 miles for 13 hours

If for Lisa drove 819 miles for 13 hours

Then for 504 miles she will drive

<h2> $\frac{504 \times 13}{819} = \frac{6552}{819}$ </h2>

We have the final answer as

<h3>8 hours</h3>

Hope this helps you

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4 years ago

Which of the ratios below can be used to finish the proportion

AysviL [449]

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3 years ago

<img src="https://tex.z-dn.net/?f=%5C%7B%20%5Cfrac%20%7B%20%28%20%5Csqrt%20%7B%203%20%7D%20%29%20%5Ctimes%203%20%5E%20%7B%20-%20

ZanzabumX [31]

Answer:

Step-by-step explanation:

Exponent law:

$\sf \bf a^m * a^n = a^{m+n}\\\\ (a^m)^n = a^{m*n}$

$\sf a^{-m}=\dfrac{1}{a^m}$

First convert radical form to exponent form and then apply exponent law.

$\sf \sqrt{3}=3^{\frac{1}{2}}\\\\\sqrt{5}=5^{\frac{1}{2}}$

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$= \left(\dfrac{3^{\frac{1}{2}-2}}{5^{\frac{1}{2}*2}}\right)^{\frac{1}{2}}\\\\=\left(\dfrac{3^{\frac{1-4}{2}}}{5}\right)^{\frac{1}{2}}\\\\=\left(\dfrac{3^{\frac{-3}{2}}}{5}\right)^{\frac{1}{2}}\\\\=\dfrac{3^{\frac{-3}{2}*{\frac{1}{2}}}}{5^{\frac{1}{2}}}\\\\ =\dfrac{3^{{\frac{-3}{4}}}}{5^{\frac{1}{2}}}$

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2 years ago

I really need some help it's hard to understand!

Vedmedyk [2.9K]

C you just add them divide by 2

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4 years ago

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What percent of 106 is 67?

Eva8 [605]

Answer:

63.21%

Step-by-step explanation:

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