8. There are 7 cars for every 5 trucks. If there are 21 cars, how many trucks are there?
O a) 10
O b) 7
O c)15
O d) 62

c)15

Step-by-step explanation:

21 divided by 7 is 3

5 times 3 is 15

The answer is 15.

Step-by-step explanation:

that's the answer to me

you can't solve x because it is 2 linear equation and you only have one equation

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