8.
y = 5x - 1 and
-5x = -1-y put in you first!
Point of Intersection:

(0; - 1)

Step-by-step explanation:

y = 5x - 1 and  5x = - 1 - y

                      y = - 1 - 5x

5x - 1 = - 1  - 5x

5x = -5x

5x + 5x = -5x + 5x

10x = 0

x = 0

y = 5x - 1

y = 5 × 0 - 1 = - 1

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.