Step-by-step explanation:
I think it is 44.
if wrong forgive me.
hope this helps.
Answer:
The labor fee is $14.25, each quart of oil costs $2.25.
Step-by-step explanation:
Let $x be thee price of each quart of oil and $y be a flat fee for labor.
1. If the oil change for one car required 5 quarts of oil, then these 5 quarts cost $5x and together with a flat fee for labor it cost $25.50. Thus,
5x+y=25.50.
2. If the oil change for another car required 7 quarts of oil, then these 7 quarts cost $7x and together with a flat fee for labor it cost $30.00. Thus,
7x+y=30.00.
3. Subtract from the second equation the first one, then

Substitute it into the first equation:

The labor fee is $14.25, each quart of oil costs $2.25.
Set each of the binomials equal to zero and solve for x. The two values will be the zeros of the equation:
(x-4) = 0 (x+11) = 0
x-4 = 0 x + 11 = 0
x = 4 x = -11
The zeros of the equation are -11 and 4
Answer:
1 pound = 16 ounces
2 pounds = 32 ounces
Given:
Cost for 2 pounds of bananas = $1.28
Price per ounce = 1.28/32 [∵2 pounds = 32 ounces]
=$0.04
Hence the cost of bananas per ounce is $0.04
Hope it helped!
<span>the answer is D. 9,261 – 2,857</span>