Question

The length of a rectangle is 4 inches more than its width, and its perimeter is 34 inches. Find the length and width of the rectangle.

Find the width of the rectangle. Type a numerical answer in the space provided. Do not include labels or spaces in your answer.
wouldnt the answer be 4.5 is the width

Answer 1

length = w+7
34=2w+2(w+7) (w is the width)
34=4w+14 (distribute 2 into w+7 and add to 2w)
20=4w (subtract 14 from each side)
5=w (divide each side by 4)
width = 5, length =12 (using first equation l=w+7)

Answer 2

tell me if u dont get something?

Answer 3

but its a 4 in my problem not 7

Answer 4

yea i know i gave u example do for 4 yourself ?

Answer 5

can u do it ?

Answer 6

ha no im a 6th grader taking advanced algebra i dont understand anythhing

Answer 7

ohk i ll explain

Answer 8

ok

Answer 9

first length = width+4 inches

Answer 10

perimeter = length + width

Answer 11

ok

Answer 12

2width + 2(width+4inches) length

Answer 13

just sub in length = w+4

Answer 14

did u get it?

Answer 15

its 6.5 right

Answer 16

yes goo work !

Answer 17

good*

Answer 18

yeah thanks

Answer 19

nw:)

Answer 20

i got one more if you can help

Answer 21

sure

Answer 22

A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution.

How much of the 70% solution is used? Type a numerical answer in the space provided. Do not include labels or spaces in your answer.

Answer 23

can u do it

Answer 24

yes

Answer 25

we will do this question as a+b=c

Answer 26

ok

Answer 27

x+y=50 liters

Answer 28

ok

Answer 29

therfore
\[20x+70y=40\times50\]

Answer 30

did u get what i did there