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Sonja [21]
3 years ago
12

the wilson have triplets and another child who is ten years old.the sum of their age of their childen is 37. How old is the trip

lets
Mathematics
2 answers:
Kaylis [27]3 years ago
3 0
They are nine years old
Maru [420]3 years ago
3 0
The other three are 9 years old
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6p

Step-by-step explanation:

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When a certain valve is open, 281 gallons go through it in one hour. The number of gallons that would go through in 94 hours is
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Which of the following functions is graphed below?
sasho [114]

Answer:

2nd choice B.

Step-by-step explanation:

You can use the options A-D to help you eliminate pretty quickly without actually graphing

So first chose says you have the graph on the left when x<1 But you should see our visual actually says we want to include what happens at 1 (the filled dot) so this isn't the answer

Second choice Possible

Third choice... I'm just going to look at one of the parts... x^2+4 for x<=1 says we should have part of a parabola to the left of x=1 (inclusive) but there is not parabola in our visual

Fourth choice: same reason as third choice

Answer is the 2nd

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3 years ago
the perimeter of square f is 2/3 less than the perimeter of square g . the side lengths of square f are each x meters , and the
horrorfan [7]

Answer:

  • A. 1/4x - 1/6

Step-by-step explanation:

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3 0
2 years ago
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Two workers finished a job in 12 days. How long would it take each worker to do the job by himself if one of the workers needs 1
Lorico [155]

Two workers finished a job in 7.5 days.

How long would it take each worker to do the job by himself if one of the workers needs 8 more days to finish the job than the other worker?

let t = time required by one worker to complete the job alone

then

(t+8) = time required by the other worker (shirker)

let the completed job = 1

A typical shared work equation

7.5%2Ft + 7.5%2F%28%28t%2B8%29%29 = 1

multiply by t(t+8), cancel the denominators, and you have

7.5(t+8) + 7.5t = t(t+8)

7.5t + 60 + 7.5t = t^2 + 8t

15t + 60 = t^2 + 8t

form a quadratic equation on the right

0 = t^2 + 8t - 15t - 60

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Factor easily to

(t-12) (t+5) = 0

the positive solution is all we want here

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then

the shirker would struggle thru the job in 20 days.

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