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RoseWind [281]
3 years ago
15

An electrician charges $30 for a service call plus $75 per hour of service. If he charged 210$ how many hours did he work

Mathematics
2 answers:
Alexxx [7]3 years ago
5 0
If the electrician charged $30 for the call, $210 - $30 would equal $180. $180 ÷ $75 would be equaled to 2.4 ,

overall the worker worked for 2 hours and 40 minutes ~~
hope this helps♡~chyna
tigry1 [53]3 years ago
4 0

Answer:

2 hours 30 minutes

Step-by-step explanation:

210 - 30 = 190

190 / 75 = 2.5

Sorry if I'm wrong.

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A used-car dealer sold one car at a profit of 25 percent of the dealer's purchase price for that car and sold another car at a l
Daniel [21]

Answer:

C. 1000 loss.

Step-by-step explanation:

Let x represent purchase price of each car.

We have been given that a used-car dealer sold one car at a profit of 25 percent of the dealer's purchase price for that car and sold another car at a loss of 20 percent of the dealer's purchase price for that car.

We can represent the car that dealer sold with 25% profit to find purchase price as:

x+0.25x=20,000

1.25x=20,000

\frac{1.25x}{1.25}=\frac{20,000}{1.25}

x=16,000

Therefore, the purchase price of 1st car was $16,000.

We can represent the car that dealer sold with 20% loss to find purchase price as:

x-0.20x=20,000

0.80x=20,000

\frac{0.80x}{0.80}=\frac{20,000}{0.80}

x=25,000

Therefore, the purchase price of 2nd car was $25,000.

The total purchase price of both cars would be 16,000+25,000=41,000

The total sale price of both cars 20,000+20,000=40,000.

We can see that the sale price of both car is less than purchase price by $1000, so the dealer got a loss of $1000.

Therefore, the dealer's total loss, in dollars, for the two transactions combined was 1000 and option C is the correct choice.

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3 years ago
WILL GIVE BRAINLIEST! PLEASE HELP I'm doing an exam!! A photograph is reduced by a scale factor of 3/4. If the original length o
Harlamova29_29 [7]
13.5 inches, because if you add 4.5x4 or 9x2 it equals 18, then you just subtract 4.5 from 18 and it’s 13.5
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Walking 10 blocks can cosume 75 calories. how many calories can you consume walking 25 blocks
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3 years ago
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At a fish market, a pound of salmon costs $12 and a pound of shrimp costs $18. Mrs. Donnelly wants to buy 2 1/3 pounds of salmon
Semmy [17]

Answer:

Yes and she would have $2 left over because all the food costs $91.

Step-by-step explanation:

We should set up an equation so that everything makes sense. A calculator would be wise for this problem, but I am going to lay it out anyhow.

We should convert the mixed numbers to improper fractions to not be confused. 3 1/2 becomes 7/2 or 3.5 and 2 1/3 becomes 7/3.

From your wording, we can assume that the money Mrs. Donnelly has is either greater than or equal to $93.

Thus, we have 12*(7/3) + 18*(7/3) is equal to or greater than 93 (this is an inequality).

The math shows that the food costed 91 and so she only has $2 left.

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