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3 years ago

There are 9 books eack book 3/4 of a pound which is the total weight of the books?

Mathematics

1 answer:

Pavel [41]3 years ago

3 0

Total Weight = Weight of the book + Weight of the CD + Weight of the box

Total Weight = 1 1/4 pound + 1/5 pound + 3/10 pound

Total Weight = 5/4 + 1/5 + 3/10

To add these fractions, you need to put them over a common denominator. To do that, find the least common multiple of 4, 5, and 10. Below is a table of the multiples. The least multiple they have in common is 20, shown in orange. So use 20 as your least common denominator.

1 2 3 4 5 6 7

4 x 4 8 12 16 20 24 ...

5 x 5 10 15 20 25 30 ...

10 x 10 20 30 40 50 60 ...

Can you finish it from here?

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Rebecca has r number of crayons. Julie has 17 more crayons than Rebecca. Which expressions correctly show the number of crayons

Sedaia [141]

Answer:

I would say that it is none of the above that one is much more reasonable than the other ones

Step-by-step explanation:

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3 years ago

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A stadium's normal ticket price is $78. As a special promotion they offer 15% off. What is the price of the discounted ticket?

meriva

You have to find out what 15% of $78 dollars is. If you have to do this in your head and not on a calculator you can find 10%, then cut that number in 1/2 and add it to the answer. So 10% of $78 is 7.8 so $7.80. You can divide 7.80 by 2 and get 3.9 and add that to 7.8 which is 11.70. So 15% of $78 is $11.70.

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3 years ago

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Find the slope of the line that passes through the points (-19, -4) and (13, -17).

Tasya [4]

Answer:

m = $\frac{-13}{32}$

Step-by-step explanation:

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3 years ago

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The area of the rectangle shown is 44 m2.<br> | 3 m<br> x m<br> Work out the missing length x.

andrew11 [14]

Answer:

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3 years ago

A truck can travel 80 miles in the same time that ot takes a car to travel 90 miles. If the truck’s rate is 5 miles per hour slo

SIZIF [17.4K]

The truck was going 40 miles per hour

The amount of time was 2 hours:
(90-80: 10)(10/2=5)

80 divided by two is 40

The car was going 45 miles per hour

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90 divided by two is 45

Hopefully you find this helpful

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3 years ago