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Katyanochek1 [597]
3 years ago
7

Pls help with this question. No links.

Mathematics
1 answer:
Anna71 [15]3 years ago
8 0

Answer:

<h3>i hope it's helpful for you</h3>

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Which value of x is a solution to x2<br> = 16?
Helga [31]

Answer:

8

Step-by-step explanation:

if we take the 2 that is in the R.H.S and put it in L.H.S

it becomes 16÷2=8

8 0
3 years ago
The length of a rectangular floor is 4 feet longer than its width w. The area of the floor is 525 ft^2.
andre [41]

Answer:

  • 525 = (w+4)(w)
  • 21 ft by 25 ft

Step-by-step explanation:

Let w represent the width of the floor. Then the length of the floor is (w+4) and its area is ...

  A = LW

  525 = (w+4)(w)

  w^2 +4w -525 = 0

  (w -21)(w +25) = 0 . . . . factor the above

Solutions are ...

  w = 21, w = -25

We are interested in the positive solution: w = 21.

The floor is 21 feet wide and 25 feet long.

_____

<em>Alternate solution</em>

Sometimes, when the factors aren't obvious, it works well to write an equation for the average of the dimensions. Here, we can represent that with x, and use (x-2) for the width, and (x+2) for the length. Then we have ...

  525 = (x-2)(x+2) = x^2 -4

  529 = x^2

  √529 = 23 = x

Then w=23 -2 = 21, and the length is w+4 = 25.

7 0
3 years ago
Read 2 more answers
2. Fred has twice as much money
lys-0071 [83]

J=amount Jake has; F=amount Fred has=2J

J+F=$54

J+2J=$54

3J=$54

J=$18

ANSWER 1: Jake has $18.

F=2J=2($18)=$36 ANSWER 2: Fred has $36.

4 0
3 years ago
Luke made cookies he used 1/2 of a cup of flour and 2/5 of cup of sugar. How much more flour than sugar did Luke use
VLD [36.1K]

Answer:

1/10

Step-by-step explanation:

2/5 a cup of sugar

1/2 a cup of flour

-Convert to 10ths:

4/10 of sugar, and 5/10 of flour.

Luke used 1/10 more flour than sugar.

8 0
2 years ago
Please help fast. It’s a test
Reil [10]
Were is the question?
6 0
3 years ago
Read 2 more answers
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