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4 years ago

14

Steven added a number to one-sixth. Will subtracted the same number from one and two-thirds. They each got the same answer. What

is the number ?

1 answer:

White raven [17]4 years ago

6 0

Answer:

x=3/4

Step-by-step explanation:

Set up an equation:

1/6+x=1 2/3-x

1/6+x=5/3-x

1/6+x=10/6-x

2x=9/6

2x=3/2

4x=3

x=3/4

Check:

common denominator of 12

2/12+9/12=11/12 AND 20/12-9/12=11/12

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A 3-foot wife wood deck will be built around rectangular shaped pool that measures 15feet by 30feet. The resulting shape is also

lisov135 [29]

Answer:

$340

Step-by-step explanation:

The pool is 5 yards wide by 10 yards long, so adding the deck will make the total area 7 yards wide by 12 yards long, or ...

(7 yd)·(12 yd) = 84 yd^2

The pool itself is ...

(5 yd)·(10 yd) = 50 yd^2

so the area of the deck is ...

84 yd^2 -50 yd^2 = 34 yd^2

Wood for each of those square yards costs $10, so the total cost is ...

($10/yd^2)·(34 yd^2) = $340

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3 years ago

Please help... Solve using the quadratic formula x^2 - 6x - 40=0

Tasya [4]

The answer is

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3 years ago

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kari74 [83]

The answer would be $19 on eg

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3 years ago

Please simplify the following equation and show how:<br> (2x+2)^3

Natasha_Volkova [10]

<span> </span>

You can use (a+b)2 = a2+2ab+b2.
(2x - 3)2 = (2x)2 + 2(2x)(-3) + (-3)2 = 4x2 - 12x + 9

Or you can use FOIL.

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hope I could be helpful

7 0

3 years ago

Read 2 more answers

A rectangle has perimeter, P, length, land width, w. Which of the following represents lin

almond37 [142]

Answer:

$l=\frac{P}{2}-w$ .

Step-by-step explanation:

The perimeter of a rectangle is the sum of it's side lengths.

A rectangle has 4 sides where it's opposite sides are congruent.

So if one side has measurement w, then there is another side that has measurement w.

If there is one side that has measurement l, then there is another side that has measurement l.

So if you add w+w+l+l you get 2w+2l.

They are giving us that the perimeter is P, so P=2w+2l.

we are being asking to solve for l.

P=2w+2l

First step: Isolate term that contains the l, so get 2l by itself first.

We are going to subtract 2w on both sides giving us:

P-2w=2l

2l=P-2w

Now that we have 2l by itself it is time to perform the last step in getting l by itself.

Second step: Divide both sides by 2.

This gives us:

l=(P-2w)/2

You may separate the fraction like so:

$l=\frac{P-2w}{2}=\frac{P}{2}-\frac{2w}{2}=\frac{P}{2}-w$ .

I don't know your options but I have solve for l in terms of P and w

and got $l=\frac{P}{2}-w$ .

Please let me know if you have further questions with this problem.

4 0

3 years ago