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3 years ago

10

Jennifer and Callie are training for a marathon. Jennifer has run m miles, and Callie has run 3 times as many as Jennifer. The e

xpression shows how many miles they have run altogether.
m + 3m

2 answers:

galben [10]3 years ago

4 0

What’s the question,

Gnom [1K]3 years ago

4 0

Yeah it’s kinda hard to understand

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Inga [223]

$Q1.\\p\%=\dfrac{p}{100};\ 20\%=\dfrac{20}{100}=0.20=0.2\\\\20\%-French\ of\ 500\ people\\\\0.2\cdot500=100\leftarrow Answer$

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4 0

3 years ago

Read 2 more answers

Three-sevenths of a number is 21. Find the number.

miskamm [114]

Answer:

Step-by-step explanation:

The number is 49, First do 21 / 3 to find what 1/7 of the number is. We get 7, so we know 1/7 is 7 so if we do 7 x 7 we will have 7/7 or one whole and 7x7 is 49. Hope this helps

6 0

3 years ago

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A cube has a volume of 125 cubic feet. What is the length of each side of the cube

Helen [10]

Length= 5
width=5
height= 5

3 0

3 years ago

Read 2 more answers

How many are 5 raised to 4 ???

Licemer1 [7]

Answer:

625

Step-by-step explanation:

5⁴ = 5x5x5x5 = 625

4 0

3 years ago

Given the data shown below, which of the following is the best approximation of the coefficient of determination (r^2)

HACTEHA [7]

The coefficient of determination can be found using the following formula:

$r^2=\mleft(\frac{n(\sum ^{}_{}xy)-(\sum ^{}_{}x)(\sum ^{}_{}y)}{\sqrt[]{(n\sum ^{}_{}x^2-(\sum ^{}_{}x)^2)(n\sum ^{}_{}y^2-(\sum ^{}_{}y)^2}^{}}\mright)^2$

Using a Statistics calculator or an online tool to work with the data we were given, we get

So the best aproximation of r² is 0.861

8 0

1 year ago