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
Answer:
1. 7
2.13
3.92
4.23
Step-by-step explanation:
P- parentheses
E- exponents
MD- Multiplication and division
AS- addition and subtraction
1. 3+3^2-5
3+9-5
12-5=7
2. 2^3-5x1+10
8-5x1+10
8-5+10
13
3. 24\2+10^2-20
24/2+100-20
12+100-20
92
4. 6x^3+25/5
18+25/5
18+5
23
Answer:
Step-by-step explanation:
2/3+1/3x=2x
moving all the x to one side
2/3=2x-1/3x
factoring out x
2/3=x(2-1/3)
dividing
(2/3)/(2-1/3)=x