8*.8=6.4
4x+6.4=40
40-6.4=33.6
33.6/4=x
8.4=x
Hope this helps :)
Answer:
.99
Step-by-step explanation:
He paid $8.50 + 6% sales tax. So
8.50 x .06 = .51
8.50 + .51 = 9.01 total he paid
$10.00-$9.01=.99
(7, -2)
2(4x-3y=34)
8x-6y=68
3(3x+2y=17)
9x+6y=51
8x-6y=68
+9x +6y=51
17x =119
x=7
4(7)-3y=34
28-3y=34
-28 -28
-3y=6
y=-2
Answer:
9-0+1-1×2
Step-by-step explanation:
The volume of a rectangular prism (which the frame is, having a square base with height) is given by
, where l is length, w is width, and h is height. Since the width of a square is equivalent to its length, the square's dimensions will be 8 feet by 8 feet. So the volume of the frame is
.
We need to know how many
bags fit in a
frame, so we can divide 64 by 5 to find how many times 5 fits in 64:
. You can't buy 8 tenths of a bag, so you'll need to buy 13 bags to ensure that you have enough cement to fill the entire frame.