Answer:$344
1/5 of 400 is 80 so if you subtract that it would be $320
1/50 of $400 is 8 so if you multiply that by 3,3/50 of $400 is(8*3)24 so $320+$24=$344
M=cost per movie
v=cost per video game
2m+5v=33
8m+3v=30
use elimination
eliminate movies
mutliply first equation by -4 and add to 2nd
first equation becomes -8m-20v=-132
add the 2 equations
-8m-20v=-132
<u>8m+3v=30 +</u>
0m-17v=-102
-17v=-102
divide both sides by -17
v=6
subsiutute back
2m+5v=33
2m+5(6)=33
2m+30=33
minus 30 both sides
2m=3
divide 2
m=1.5
rental cost per movie is $1.50
rental cost per video game is $6
Answer:
0.41791
Step-by-step explanation:
let x be the number written to the thousandth place then,
x times thousands = 417.91
or, x = 417.91/1000
therefore, x = 0.41791
and so
0.41791 thousand = 417.91
Answer:
width = 3.5 feet length = 8 feet.
Step-by-step explanation:
W=x
L=2x+1
Area=(2x+1)x=28
2x^2+x=28
2x^2+x-28=0
(2x-7)(x+4)=0
x=3.5,-4. It should be a positive number so W=3.5
2x+1=8 2x3.5=7 7+1 = 8 L=8
That area is 28 ft^2
width is 3.5 feet and length is 8 feet.