# To in-line skater‘s Nell and Kristen start from the same point and skate in the same direction. skate at 12 mph and Kristen skate 14 mph if they can keep up that pace for 2.5 hours how far apart will they be at the end of that time?

distance (d) = rate (r) x time (t)

Nell: d = 12(2.5)   = 30 miles

Kristen: d = 14(2.5)   = 35 miles

Kristen - Nell = distance apart

35   -   30

5

## Related Questions

What's the absolute value of |n-3|=5
I need for the steps to solving the problem shown please.

n=8, n=-2

Step-by-step explanation:

|n-3| = 5

n-3 =5 and n - 3 = -5

n-3=5    (add 3 to both sides)      n-3=-5   (add 3 to both sides)

n= 8                                               n=-2

In a recent air quality​ study, there were 64 unhealthy air quality days in City A. This is 4 more than twice the number of unhealthy air quality days in City B. How many unhealthy air quality days were there in City​ B?

Step-by-step explanation:

City A has 64 unhealthy air quality days this is 4 more than twice the number of unhealthy air quality days in City B.

# unhealthy days in city A = 64

# unhealthy days in city B = B

Equation

64 = 2B + 4

64 -4 = 2B

60 = 2B

B = 30 days

The number 15.24 is an example of a repeating decimal.

True

False

Repeating decimal means that the numbers after the decimal point are repeating constantly such as 8.3333333.....and so on. Or a number that repeats a pattern forever.

So 15.24 is NOT a repeating decimal because after the decimal point the number 24 is not repeating.

This would make the number a repeating decimal - 15.24242424242424242424...

Find all sets of three consecutive even integers whose sum is between 25 and 45

1st even integer is x,

2d consecutive even integer is x+2,

3d consecutive even integer is x+2+2 = x+4.

Sum is  x+ x+2 +x +4 = 3x + 6.

Sum is between 25 and 45, so we can write

25< 3x+6 < 45.

25 -6 < 3x < 45 -6

19 < 3x < 39

19/3 < x < 13

6 1/3 < x < 13

Between 6 1/2 and 13 there are even numbers 8,10,12 ,  so first even number can be 8, or 10, or 12.

1st set :     8, 10, 12

8+10+12 = 30         25