This simplifies to <u>8x-27</u> because -11x and +19x are like terms.
Answer:
Step-by-step explanation:
divide 1.5 by 4 to get 1/9 of the cost, and then multiply that by 9 to get the cost of one kilo.
or 3.375, round it for money purposes
$3.38
6x - 17 = 2(2x + 3) since AB is half of what LB is. Therefore AB would have to be doubled to make them equal. Then 6x - 17 = 4x + 6 by distribution, and 2x - 17 = 6 by subtraction, and 2x = 23. So x = 11.5
Answer:
180 cm2
this users y o u t u b e channel:Chaparro's Adventure's
Answer:
Amount at 15%=$2,411
Amount at 14%=$7,405
Step-by-step explanation:
let
x= the amount at 15% rate.
y=amount at 14% rate
y= x times 3 plus $172
y= 3x + $172 (1)
x times 15% plus y times 14% equals a return of $1,398.35 after one year
0.15x + 0.14y= $1,398.35 (2)
Recall,
y= 3x + $172
Substitute (1) into (2)
0.15x + 0.14y= $1,398.35
0.15x + 0.14(3x+172)=1398.35
0.15x + 0.42x + 24.08=1398.35
Collect like terms
0.15x + 0.42x=1398.35 - 24.08
0.57x=1374.27
Divide both sides by 0.57
x=2,411
x=$2,411
Find y
y= 3x + $172
=3(2,411) + 172
=7,233+172
=7,405
y=$7,405
Amount at 15%=$2,411
Amount at 14%=$7,405
Check:
$2,411*0.15=$361.65
$7,405*0.14=$1036.70
Total=$361.65 + $1036.70
=$1,398.35
