desirjeanpierre desirjeanpierre

11-02-2017
Mathematics

contestada

The bill for repairing a car was $311 .The cost for parts was $125 .The cost for Labor was$ 31 per hour .How many hours did the repair work taking?????

Respuesta :

melissam620 melissam620

11-02-2017

311-125= 186
186/ 31=6
It took 6 hours.

Answer Link

apologiabiology apologiabiology

11-02-2017

bill=parts+labor
labor=31 times hours or h
parts=125
bill=311

311=125+31h
minus 125 both sides
186=31h
divide both sides by 31
6=h

6 hours

Answer Link

Otras preguntas

what did collapse and lava mean?

choose the inequality that represents the following graph

Who is one of the best singers or what song is one of the best?

What do political appointees and civil service workers have in common? Question 15 options: Both are rewarded for their political support. Both must pass throug

Describe how changes in the lining shown in the diagram adapt it for its function if an egg is fertilised

This equation represents a biological process. In which organelle is this process completed? C6H12O6 + O2 --> CO2 + H20 + ATP Cell membranes Mitochondria Chl

why did george washington create the cabinet?

Num teste de resistência de um para-choques, um automóvel de 2300 kg que circula a 15 m/s, embate num obstáculo. Sabendo que a colisão durou 0,54 s, determina a

What is Redox reaction? What is oxidized, reduced, oxidizing, and reducing agent?

help you must for brainlyest you shall get mmmm ( yoda)