Answer:
12 weeks
Step-by-step explanation:
set up a proportion of ounces/weeks = ounces/weeks
12/8 = 18/w
12w = 144
w = 12
Answer:
1. Show the formula to determine the area of a rectangle.
area = length x width
2. Rearrange the formula to find the unknown length of Nick's pool
length = area / width
3. Calculate the length of Nick's pool.
length = 384 / 16 = 24 feet
4. If Nick had to buy a cover that was too long (30 foot), how much extra area would be left over after the pool is covered?
(30 - 24) * 16 = 6 * 16 = 96 square feet
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Answer:
x=4±sqrt(17)
Step-by-step explanation:
x^2+4=8x+5
x^2-8x-1=0
Use quadratic formula
x=(8±sqrt(64+4))/2
Simplify it
x=4±sqrt(17)