Astudent is trying to solve the system of two equations given below: equation p: y + z = 6 equation q: 8y + 7z = 1 which of the following is a possible step used in eliminating the y-term?
a. (y + z = 6) ⋅ −8
b. (y + z = 6) ⋅ 7
c. (8y + 7z = 1) ⋅ 7
d. (8y + 7z = 1) ⋅ 8

sine

step-by-step explanation:

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.