PLA HELP DUE IN 5 MIN

Piper is deciding between two truck rental companies. Company A charges an initial fee of $35 for the rental plus $3 per mile dr

vazorg [7]

Answer:

An equation for each situation, in terms of x

A = 35 + 3x

B = 80 + 2x

The interval of miles driven x, for which Company A is cheaper than Company B is 0 to 44.9 miles.

Step-by-step explanation:

Let A represent the amount Company A would charge if Piper drives x miles

Let B represent the amount Company B would charge if Piper drives x miles.

Company A charges an initial fee of $35 for the rental plus $3 per mile driven.

A= $35 + $3 × x

A = 35 + 3x

Company B charges an initial fee of $80 for the rental plus $2 per mile driven.

B = $80 + $2 × x

B = 80 + 2x

The interval of miles driven x, for which Company A is cheaper than Company B.

= A < B

35 + 3x < 80 + 2x

3x - 2x < 80 - 35

x < 45 miles

That is: any number of miles driven below 45 miles makes Company A cheaper than Company B

The interval of miles driven x, for which Company A is cheaper than Company B is 0 to 44.9 miles.

5 0

3 years ago

The scatter plot shows the number of years of experience x and the hourly pay rate y for each of 25 cashiers in Ohio.

astra-53 [7]

Answer:

a) $y= 0.95*7 +7.95 =14.6$

b) $y= 0.95*0 +7.95 =7.95$

c) For this case we can use the slope from the linear model to answer this question, the 0.95 on this case represent the increase in the hourly pay rate per each year of experience, for example if we have one year of experience the pay rate increase 0.95. So then the answer for this case is 0.95.

Step-by-step explanation:

Assuming the following question: "The scatter plot shows the number of years of experience, x, and the hourly pay rate, y, for each of 25 cashiers in Ohio. x represent the number of years of experience and y the hourly pay rate. The line adusted is: y=0.95x+7.95, to answer the questions below. Give exact answers, not rounded approximations. "

(a) What is the predicted hourly pay rate for a cashier with 7 years of experience?

For this case we can use the lineal model given:

$y = 0.95 x +7.95$

And we can replace x =7 years and we got:

$y= 0.95*7 +7.95 =14.6$

(b) What is the predicted hourly pay rate for a cashier who doesn't have any experience?

For this case we just need to replace in the linear model x=0 since that means no experience and we got:

$y= 0.95*0 +7.95 =7.95$

(c) For an increase of one year of experience, what is the predicted increase in the hourly pay rate?"

For this case we can use the slope from the linear model to answer this question, the 0.95 on this case represent the increase in the hourly pay rate per each year of experience, for example if we have one year of experience the pay rate increase 0.95. So then the answer for this case is 0.95.

6 0

3 years ago

ASSUME 3 IN EVERY 2000 STUDENTS AT A LOCAL COMMUNITY COLLEGE HAVE TO QUIT DUE TO A SERIOUS HEALTH ISSUE. AN INSURANCE COMPANY OF

WARRIOR [948]

From 2000 students paying $50 a year, they make $100,000. Lets say the 3 students who get in serious trouble with health use the whole policy of $12,000. thats $36,000. So the insurance company made $64,000 profit.

8 0

3 years ago

Round 342.79513 to the three significant figures

Pavel [41]

Answer:

343

Step-by-step explanation:

Because the 5 rounds 9 to a 10, making the 7 an 8, hence:

342.8

round the 2 to a 3 because the 8 round it up, making it 343

6 0

2 years ago