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777dan777 [17]
2 years ago
13

the length of a rectangle is 5 meters less than 3 times the width. the perimeter of the rectangle is 14 meters. find the length

and width of the rectangle
Mathematics
1 answer:
morpeh [17]2 years ago
5 0

Answer:

(4+x) + x = 18; 2x=14; x=7; width = 7, length = 11

Step-by-step explanation:

You might be interested in
10. The sum of the digits of a three-digit number is 11. If the digits are reversed, the new number is 46
Zarrin [17]

Answer:

hope this helps

Step-by-step explanation:

The sum of the digits of a three-digit number is 11.

If the digits are reversed, the new number is 46 more than five times the old number.

If the hundreds digit plus twice the tens digit is equal to the units digit, then what is the number?

:

Write an equation for each statement:

:

"The sum of the digits of a three-digit number is 11."

x + y + z = 11

:

The three digit number = 100x + 10y + z

The reversed number = 100z + 10y + x

:

" If the digits are reversed, the new number is 46 more than five times the old number."

100z + 10y + x = 5(100x + 10y + z) + 46

100z + 10y + x = 500x + 50y + 5z + 46

combine on the right

0 = 500x - x + 50y - 10y + 5z - 100z + 46

499x + 40y - 95z = -46

:

"the hundreds digit plus twice the tens digit is equal to the units digit,"

x + 2y = z

x + 2y - z = 0

:

Three equations, 3 unknowns

:

x + y + z = 11

x +2y - z = 0

-----------------Addition eliminates z

2x + 3y = 11

From the 2nd equation statement, we know that the 1st original digit has to be 1

2(1) + 3y = 11

3y = 11 - 2

3y = 9

y = 3 is the 2nd digit

then

1 + 3 + z = 11

z = 11 - 4

z = 7

:

137 is the original number

:

:

Check solution in the 2nd statement

If the digits are reversed, the new number is 46 more than five times the old number."

731 = 5(137) + 46

731 = 685 + 46

7 0
3 years ago
Jennifer is playing with a die that has six faces. What is the likelihood that she will roll a four?
Ymorist [56]
The likely hood would be1 out of 6
7 0
3 years ago
Read 2 more answers
PLEASE HELP WILL GIVE 40 POINTS AND BRAINLIEST
timama [110]

Answer:

1. (-4,0) (0,2)

2. (6,0) (0,3)

3. (-4.5,0) (0,-3)

Btw theirs desmos.com that has a graph calculator

5 0
3 years ago
Due in 3 minutes. I need help!
hichkok12 [17]
Answer is a=b+1 b=c+b-2
4 0
3 years ago
Ly.<br> 8 - 2x4<br> Factor completely
scZoUnD [109]

Answer:A2 - b 2=(a + b) ( a - b) where a =2 and b =x2.

              2(2 + x2) ( 2 - x2)

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula,

4 0
2 years ago
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