Answer:
length=16 inches
width= 5 inches
Step-by-step explanation:
Area=l*w=80 square inches
l*w=80 (equation 1)
l=4w-4 (equation 2)
Putting value of l from equation 2 in equation 1
(4w-4)w=80
4w^2-4w-80=0 (equation 3)
Taking 4 common from equation
4(w^2-w-20)=0
w^2-w-20=0
w^2-5w+4w-20=0
w(w-5)+4(w-5)=0
(w+4)(w-5)=0
w=-4, w=5
ignoring the negtive width
we'll solve with w=5 by putting it in equation 2
l=(4*5)-4
l=20-4
l=16
Answer:
-15
Step-by-step explanation:
Answer:
31/20
Step-by-step explanation:
You need to plug in x as y-3.
so instead of 10x+10y=1 it is 10(y-3)+10y=1
Then just simplify the equation to find the value of y
Answer:
The maximum amount of sand in ounces that the company allows for each bottle is 25.5 ounces.
Step-by-step explanation:
The amount of sand that the company Sandy stores allows in each small bottle is determined by the amount of sand required for the bottle size plus the error in the amount of sand for the bottle size.
Now since each small bottle contains 25 ounces of sand and the error in the amount of sand contained in the bottle is 0.5 ounces, the amount of sand contained in the bottle = required amount ± error.
For the minimum amount, we subtract the error and for the maximum amount, we add the error.
Since the maximum amount is required, we have,
Maximum amount = required amount + error
required amount = 25 ounces and error = 0.5 ounces. So, Maximum amount = 25 ounces + 0.5 ounces = 25.5 ounces.
So, the maximum amount of sand in ounces that the company allows for each bottle is 25.5 ounces.
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