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Kaylis [27]
3 years ago
6

Perform the operation 8-1/2+5-1/8

Mathematics
2 answers:
monitta3 years ago
8 0

Answer:

12 3/8

Step-by-step explanation:

8-1/2+5-1/8

8+5  -1/2 - 1/8

Lets get a common denominator of 8

8+5 - 1/2 *4/4 - 1/8

8+5 - 4/8 - 1/8

Combine the whole numbers and the fractions

13 -5/8

Now we need to borrow from the whole number

12 + 1 - 5/8

12 + 8/8 -5/8

12 +3/8

12 3/8


IrinaVladis [17]3 years ago
7 0

Answer:

12.375 is believed to be the correct answer

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Car dealerships claim to make most of their money from servicing cars. In a certain month, an Acura dealership sold fifteen less
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Answer:

New cars sold = 20,

Used cars sold = 25

Cars serviced = 290

Step-by-step explanation:

In a month they sold fifteen less used cars than twice the number of new cars.

Lets say 'x' number of new cars were sold, then:

The number of used car sold is:

2\times x-15=2x-15

In the same month they serviced fifty more than twelve times the number of new cars sold. So the number of cars serviced is:

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Altogether they sold or serviced 335 cars, so the sum of all the cars sold and serviced should be 335:

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Solving for 'x' we get:

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15x=335-35=300

x=\frac{300}{15}=20

Therefore, the number of new cars sold in that month is 20.

Number of used car sold =2x-15=2\times 20-15=40-15=25

Number of cars serviced =12\times x+50=12\times20+50=240+50=290

We can also cross check by summing them up:

290+25+20=335

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