1. Miriam is starting a lawn mowing business. She bought a mower for $450 and will spend
about $1.20 per hour on gasoline. How many hours will it take for the average cost per hour
for Miriam to do business to be less than $50. If x represents the number of hours she
mows, which inequality shows the average cost per hour for Miriam to do business and what
is the solution? (A. REI.2, A. CED.1)
a. 450 + 1.20x < 50; she can never have an average less than $50
b. 450 + 1.20x < 50; 14 hours
c. 450 + 1.20x < 50; 10 hours
d. 450 – 1.20x < 50; 9 hours

b

Step-by-step explanation:

you calculate the numbers

c. 450 + 1.20x < 50; 10 hours

Step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?