Answer:
18
Step-by-step explanation:
Answer:
X= 2 Y=5
Step-by-step explanation:
Set them equal
-2x+9=4x-3 add -2x to both sides and -3 to both sides
12=6x then divide by 6
x=2
plug in 2 to either equation and solve for Y.
Y=-2(2)+9
Y=5
Answer:
50
Step-by-step explanation:
140- 40=100
100÷2=50
x=50
Answer:
A, $1.08
Step-by-step explanation:
1.20 / 90 = 1.08
use a calculator
Answer:
Step-by-step explanation:
S=student cost; T=teacher cost
.
32S+3T=$127 . Multiply this by 2.
64S+6T=$254 Subtract this below
.
25S+2T=$97.50 . Multiply this by 3.
75S+6T=$292.50
64S+6T=$254 . Subtract this (from above.)
.
11S=$38.50
S=$3.50
ANSWER 1: Student tickets cost $3.50.
.
32S+3T=$127
32($3.50)+3T=$127
$112+3T=$127
3T=$15
T=$5.00
ANSWER 2: Teacher tickets cost $5.00.
.
CHECK:
25S+2T=$97.50
25($3.50)+2($5.00)=$97.50
$87.50+$10.00=$97.50
$97.50=$97.50
