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FinnZ [79.3K]
3 years ago
7

I need the answers for this assignment pls help :(

Mathematics
1 answer:
Kruka [31]3 years ago
3 0

Answer:

115

Step-by-step explanation:

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Twin​ brothers, Billy and​ Bobby, can mow their​ grandparent's lawn together in 53 minutes. Billy could mow the lawn by himself
podryga [215]
5353 minutes = 89.22 hours
Maybe the figures should be 53 and 20??

Let's let Billy = A
The formula to use for work problems is
Time = (A*B) / (A+B)

53 = ( (A +20)* A) / (A +20 + A) )
53 = ( A^2 + 20A ) / (2A + 20)
A^2 + 20A -106A -1060
A^2 -86A -1060
A = 96.935
Bobby Mows in 116.935 minutes

3 0
3 years ago
HELP PLEASE SOMEONE
Rom4ik [11]
f(x)= \frac{x}{2} -2 and g(x)=2 x^{2} +x-3
(f+g)(x) = \frac{x}{2} -2+2 x^{2} +x-3
combining like terms gives you answer choice B

8 0
2 years ago
One-third the sum of 6 and 3
irina [24]

Step-by-step explanation:

1/3(6+3)

= 1/3(9)

= 3

......

8 0
2 years ago
Read 2 more answers
+
posledela

Answer:

outfit costs 81 dollars

Step-by-step explanation:

5 0
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Number 6.i need full working​
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You can do this on a calculator if you search up online radius and height measurement calculator.
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