Let n be the amount of time it takes william to cut the lawn. Then Shelly takes
n-2 hours. So:
1/n+1/n-2=1/3
3(n-2)+3n=n²-2n
6n-6=n²-2n
n²-8n+6=0
Using the quadratic formula, we get a positive value of 7.1623 hrs as the amount of time william takes working alone, and 5.1623 as the amount of time Shelly takes working alone
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Answer:
D
Step-by-step explanation:
40x - 8y + 24 = 0
-8y = -40x - 24
y = 5x + 3
Answer:
The answer is "The product is greater than 3/8 and less than 7/2"
Step-by-step explanation:
This is because the product of 3/8 and 7/2 is 21/16.
When you simplify 21/16, you get 1 and 5/16 which is greater than 3/8 but less than 7/2, which simplified is 3 and 1/2.
45,700 would be ur answer
hope i helped:D
Let's find the area of the outer circle and the inside circle
the inside's circle area
A= π x 6²=36<span>π
the outer's
A' = </span>π x 4x²= 4<span>πx²
A'-A=4</span>πx²- 36π=160πcm² equivalent to x²- 9=40, so x²=49 implies x =sqrt(49)=7, x=7<span>
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