Answer:
One job that pays $8 worked 12 hours.
Other job that pays $10.50 worked 18 hours.
Step-by-step explanation:
x = hours worked at 8.00
y = hours worked at 10.50
x + y = 30
8x + 10.50y = 285
Solve the first equation for x.
x + y = 30
x = 30 - y
Substitute 30 - y for x in the second equation.
8x + 10.50y = 285
8(30 - y) + 10.50y = 285
240 - 8y + 10.50y = 285
-8y +10.50y = 285 - 240
2.5y = 45
y = 18
x = 30 - y or 30 - 18
x = 12
Check:
x + y = 30
18 + 12 = 30
30 = 30
8x + 10.50y = 285
8(12) + 10.50(18) = 285
96 + 189 = 285
285 = 285
180 - 28 = 152
152 / 2 = 76 --> The other two angels are 76 and 76 (option 1)
28 + 28 = 56
180 - 56 = 124 --> The other two angels are 28 and 125 (option 2)
Answer:
2 4/15 pints
Step-by-step explanation:
Caden has 3 2/3 pints of water in a pitcher.
He has 1 2/5 pints of water left in the pitcher.
The amount of water he poured is calculated as
3 2/3 - 1 2/5
3 - 1 + (2/3 - 2/5)
Lowest Common Denominator is 15
2 + (5 × 2 - 3×2/15)
2 + (10 - 6/15)
2 + (4/15)
= 2 4/15 pints
He poured 2 1/15 pints of water.