Answer:
$870.83 or $870
Step-by-step explanation:
Combine fractions:
1 / 4 + 2 / 3
multiply both sides by their denominators.
1 × 3 / 4 × 3 + 2 × 4 / 3 × 4
3 / 12 + 8 / 12
= 11 / 12
950 × 11 / 12
950 × 11 = 10,450
10,450 ÷ 12 = $870.8
The proportion would be 1/3 and x/9. Cross multiplication creates 3x=9. Divide both sided by three, and there are 3 trombones in the orchestra.
If the repairman work x hours, then he will charge $35 an hour, so the total of $35*x.
Add to the above amount the $50 we get $(50+35x).
The correct answer is then B.
Answer:
D.
Step-by-step explanation: