2^4 = 16
3^5 = 243
16 - 243 = -227
Answer:
y=-(1)/(2)x-5
Step-by-step explanation:
We have the following given
mileage = 70 miles per gallon
distance = 60 km
Required: amount of fuel in gallons
First, we must convert the distance to miles, so
60 km (1 mi/1.6 km) = 37.5 mi
So, the amount of fuel is
37.5 mi / (70 mi/gal) = 0.54 gallons
You want to find the cost for one pound of pecans.
Divide 8.25 by 3.
8.25/3= 2.75
So it's $2.75 for one pound of pecans.
You want to find the amount for five pounds, so multiply 2.75 by 5
2.75 x 5= 13.75
It costs $13.75 for five pounds of pecans.
