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Afina-wow [57]
2 years ago
13

It takes you 8 hours to dig a hole. It would take you and your brother 5 hours to dig that same hile together. If your brother w

as to dig the hole by himself it would take him how many hours?
Mathematics
2 answers:
inn [45]2 years ago
6 0

Answer:

I think if it takes me 8 hours then it will surely take him 8 hours

DerKrebs [107]2 years ago
4 0

Answer:

40/3 hrs = 13.3 hrs

Step-by-step explanation:

Let me = K , my brother = P

K digs a hole in 8 hrs

K in 1 hr digs 1/8 of a hole

K + P dig a hole in 5 hrs

K + P in 1 hr dig 1/5

Let the portion of the hole Plan digs in 1 hr be x

1/8 + x = 1/5

x = 3/40

3/40 of the hole is dug by P in 1 hr

1 of the hole is dug by P in 40/3 hrs

= 40/3 hrs

=13.3 hrs

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Answer:

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Step-by-step explanation:

Factor the following:

-4 x^2 + 4 x - 10

Factor -2 out of -4 x^2 + 4 x - 10:

Answer:  -2 (2 x^2 - 2 x + 5)

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2 years ago
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Answer:

<em> A number on the left is less than a number on the right. A number on the right is greater than a number on the left. You can also try the zoomable number line. Place these people on the number line to find who is poorest and who is richest.</em>

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2 years ago
300/28 in simplest form
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<u><em>Answer:</em></u>

The reduced form of  

300 /28  is  75 /7

<u><em>Steps to simplifying fractions: </em></u>

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Divide both the numerator and denominator by the GCD

300 ÷ 4

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3 years ago
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Find the inverse function for
kifflom [539]
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that is correct hmmmm, yes, I think the restriction is also correct, it has to be x > 0, because, the domain on the original, has a restriction of x⩾3, otherwise the radicand turns negative.

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notice the picture below of both, the dashed section is the positive range for each, if you include it, the original will fail the vertical-line-test, and the inverse will fail the horizontal-line-test.

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3 years ago
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