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2 years ago

6

Ben collected data from a group of 12 people. He measured each person’s resting heart rate and recorded the average number of ho

urs each person exercised per week. He created a scatterplot to show the data he collected.
Based on the scatterplot, what is the best prediction of the resting heart rate, in beats per minute, of a person who exercises an average of 8 hours each week?

A. 55 beats per minute

B. 60 beats per minute

C. 50 beats per minute

D. 30 beats per minute

2 answers:

Alex777 [14]2 years ago

7 0

Answer:

50

Step-by-step explanation:

andriy [413]2 years ago

7 0

Answer:

50

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

A store is having a sale on office

Natalka [10]

Answer:

c. $10.56

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2 years ago

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2 years ago

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.Josiah has punch c

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Let x be the number of weeks; therefore, the two linear equations are

$\begin{gathered} T=2+7x \\ \text{and} \\ C=11+4x \end{gathered}$

Where T stands for the punches on the tea punch card and C for the punches on the coffee punch card.

Solving by substitution. Set T=C, then

$\begin{gathered} T=C \\ \Rightarrow2+7x=11+4x \\ \Rightarrow3x=9 \\ \Rightarrow x=\frac{9}{3}=3 \\ \Rightarrow x=3 \end{gathered}$

Thus, substitute the value of x=3 into the first equation,

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Thus, after 3 weeks, Josiah will have the same number of punches on each card, and he will have 23 punches on each card.

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1 year ago

cellus If investments double every 7 years and you start with a $600 investment, how much money would you have after 21 years?

Keith_Richards [23]

Answer:

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2 years ago