9, jennifer is now 3 years older than peter. if, in 12 years, the sum of their ages will be 61, how
old is jennifer now?

Jennifer age = 20.

Step-by-step explanation:

Given : Jennifer is now 3 years older than Peter. If, in 12 years, the sum of their ages will be 61.

To find :  how  old is Jennifer now.

Solution : We have given

Let the age of Peter  = x .

According to question

Jennifer is now 3 years older than Peter.

Jennifer age =  x + 3

After 12 year

Peter age = x + 12

Jennifer age = x + 15

Sum of their age would be  61.

x +12 + x +15 =  61.

2x + 27 = 61 .

2x = 61 - 27.

2x= 34.

On dividing both sides by 2

x = 17

Peter age = 17.

Jennifer age = 20.

Therefore, Jennifer age = 20.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0