MATHEMATICS MIDDLE SCHOOL

Use the distributive property to write the following expression in an equivalent form:6× (10+25)

Answers

Answer 1
Answer: 6*(10+25)
60+150
210 is your answer

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MIDDLE SCHOOL

Mer.johnson was pain $190 for a job that required 40 hours of work. At this rate, how much should he be paid for a job requiring 60 hours of work ?

Answers

He should be earning 285 dollars. What you do is find the rate per hour by dividing 190 by 40. (190/40) That should be 4.75. From there you can simply multiply by 60. (60*4.75). That ought to give you 285.
HIGH SCHOOL

Help!! Algebra! Write an exponential function!! 1. Justin drove his pickup truck about 22,000 miles in 2004. He read that in 1998 the average residential vehicle traveled about 10,200 miles, which increased by about 2.9% per year through 2004.

Thanks!

Answers

Answer:

a . Write a function for the average miles driven for a light truck, n( t ), as a function of t , the time in years since 1988:

n(t)=10,200*1.078^t

Step-by-step explanation:

a . Write a function for the average miles driven for a light truck, n( t ), as a function of t , the time in years since 1988 . He assumes that the average number of miles driven in 1988 was 10,200

Average miles driven for a light truck: n(t)

Time in years since 1988: t

Average number of miles driven in 1988 was 10,200: N=10,200

The annual mileage for light trucks increased by 7.8% per year from 1988 to 2004:

r=7.8%=7.8/100→r=0.078

n(t)=N*(1+r)^t

Replacing the known values:

n(t)=10,200*(1+0.078)^t

n(t)=10,200*1.078^t


MIDDLE SCHOOL

The racetrack is a winding 1/2 mile loop. Anton completes 13 laps in 13 minutes. If his speed is the same for each lap, write a division number sentence to show how long it takes him to complete 1 lap.

Answers

Answer:

13÷13=1 so if 13 is lap and 13 is minits then your answer is one.

Step-by-step explanation:

one minute

COLLEGE

A tree is 2 1/2 feet tall. How tall will it be in 3 years if it grows 1/4 foot each year? Which method will NOT give the correct number of feet?

Answers

Since the answers are not given, I will give an explanation myself. Multiplying three years by the number of feet per year (1/4 foot), but not adding it to the original height (2 1/2 feet), will give you the WRONG answer. 
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