Nicole and Kim are in cities that are 130 miles apart when they begin driving toward each other. Nicole drives 5 mi/h faster than Kim. If they meet in 2 hours, what is the rate of each driver? A. Nicole’s rate is 30 mi/h, and Kim’s rate is 35 mi/h.
B. Nicole’s rate is 35 mi/h, and Kim’s rate is 30 mi/h.
C. Nicole’s rate is 60 mi/h, and Kim’s rate is 65 mi/h.
D. Nicole’s rate is 65 mi/h, and Kim’s rate is 60 mi/h.

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !

step by step explanation: when u removing the parentheses and combined them that would be : x+3y-x-y=2y