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Cloud [144]
3 years ago
14

The length of rectangle is 1 meter less than it's width . The area of the rectangle is 42 square meters. Find the dimensions of

the rectangle.
Mathematics
1 answer:
serg [7]3 years ago
7 0
We can turn this word problem into equations! So let l be length and w be width. So we can write, l+1=w. And l*w=42. we can plug the first equation in... l(l+1)=42 which is l^2+l=42. We can see that l=6. So w=7.
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Can someone please answer number 14 a, b and c? Thank you.
Harrizon [31]
For a, we have 42in/9ft. Since 12 inches are in 1 foot, we can multiply it by that to get (42in/9ft)*(1ft/12inches) = 42/108. We put the foot on the top of 1ft/12in to cancel them out. Since 2 goes into both 42 and 108, we divide it by 2/2 to get 26/54. Repeating the process again, we get 13/27

If we were to say that there are 12 inches in a foot and therefore divide 42 by 12 (to get 42 inches in feet), we'd get the same answer due to that 1 foot is equal to 12 inches and if you were to divide it by 1 foot/12 inches, since they are the same thing, you get the same answer

For c, since it may be hard to get (42/12)/9, it could just be easier to have 42/(9*12)=42/108
5 0
3 years ago
27 less than twice a number is -1
Natasha2012 [34]

Answer:

2x-27=-1

This is the equa

Step-by-step explanation:

Answer

x=13

This is the answer

4 0
3 years ago
What is the value of this expression?
Irina18 [472]

Answer:

<h2>-128</h2>

Step-by-step explaination:

=> ( -2 )^3*( -2 )^4

=> -8 * 16

=> -128...ans

<h2>HOPE IT HELPS U!!!! </h2>
7 0
3 years ago
What is Perfect square
rodikova [14]

Answer:

A perfect square is an integer that results in another integer when square rooted.

Step-by-step explanation:

For example:

16 is a perfect square because \sqrt{16} = 4.

16 and 4 are both integers

Also, notice that 4 x 4 = 16

5 0
2 years ago
Read 2 more answers
Pls help
uranmaximum [27]
30 minutes is 1/2 an hour.

60 minutes is a full hour.

Monday thru Saturday is:

Monday, Tuesday, Wednesday, Thursday. Friday, Saturday. That is 6 days total.

30 minutes a day for 6 days is 180 minutes.

180 minutes / 60 minutes = 3 hours.

3 hours x $7 = $21
3 0
2 years ago
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