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Vaselesa [24]
3 years ago
15

If DE=4x+10, EF= 2x-1, and DF=9x-15, Find DF

Mathematics
1 answer:
djverab [1.8K]3 years ago
6 0

Answer:

Df=9x-15

Step-by-step explanation:

The answer is on the question

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The sum of the digits of a two-digit nunber is 7. When you reverse the digits of the original number the new number is 27 more t
anzhelika [568]

Answer:

25

Step-by-step explanation:

2+5=7

25 reversed is 52

52-25=27

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If I cut 2/3 of a pie and put the big piece on my plate. Then eat 1/4 of the piece. What fraction of the original pie did I eat.
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If you took \frac{2}{3} of a pie then only ate \frac{1}{4} of that slice, you ate \frac{1}{4} of \frac{2}{3}.

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3 years ago
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Solve the inequality <br> 5x+2 &lt; 32
AnnyKZ [126]

Answer:

x<6

Step-by-step explanation:

First, let's work on the left hand side of your inequality, the 5x+2

This means, for instance, to see if it can be simplified at all.

Multiply x and 5

Multiply x and 1

The x just gets copied along.

The answer is x

x

5*x evaluates to 5x

5*x+2 evaluates to 5x+2

So, all-in-all, the left hand side of your inequality can be written as: 5x+2

Now, let's work on the right hand side of your inequality, the 32

The right hand side of your inequality can be written as: 32

So with these (any) simplifications, the inequality we'll set out to solve is:

5x+2 ‹ 32

Move the 2 to the right hand side by subtracting 2 from both sides, like this:

From the left hand side:

2 - 2 = 0

The answer is 5x

From the right hand side:

32 - 2 = 30

The answer is 30

Now, the inequality reads:

5x ‹ 30

To isolate the x, we have to divide both sides of the inequality by the other "stuff" (variables or coefficients)

around the x on the left side of the inequality.

The last step is to divide both sides of the inequality by 5 like this:

To divide x by 1

The x just gets copied along in the numerator.

The answer is x

5x ÷ 5 = x

30 ÷ 5 = 6

The solution to your inequality is:

x ‹ 6

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2 years ago
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Answer:

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Step-by-step explanation:

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vagabundo [1.1K]

Answer:

ello mate my day is great how about yours

Step-by-step explanation:

and may i ask are you british??

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