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2 years ago

Which is the larger amount 4/10 of a dollar or 8/10 of a dollar

Mathematics

2 answers:

3241004551 [841]2 years ago

7 0

8/10 of a dollar is the correct answer

allochka39001 [22]2 years ago

7 0

8/10 is larger, we can look at it two ways:
4/10 of a dollar is 40 cents, and 8/10 of a dollar is 80 cents, so we know 8/10 is larger; or:
8/10 would be the bigger fraction, so 8/10 of a dollar is larger.
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Hope this helps!
==jding713==

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2 years ago

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A company has two large computers. The slower computer can send all the company's email in 60 minutes. The faster computer can c

Lelu [443]

Answer:

If both computers are working together, it will take 24 minutes to do the job

Step-by-step explanation:

It is given that,

There are two computers.The slower computer can send all the company's email in 60 minutes.

The faster computer can complete the same job in 40 minutes

To find the LCM of 40 and 60

LCM (40, 60) = 120

To find efficiency of 2 computers

Let x be the efficiency of faster computer and y be the efficiency of faster computer

x = 120/40 = 3

y = 120/60 = 2

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To find the time taken to work both the computer together

time = 120/5 = 24 minutes

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3 years ago

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Dovator [93]

Answer:

x = 200

Step-by-step explanation:

Multiply by 4:

x + 120 + 2x = 720

3x = 600 . . . . . . collect terms, subtract 120

x = 200 . . . . . . . divide by 3

_____

Check

(200/4 +30) +(200/2) = 180

(50 +30) + 100 = 180

80 + 100 = 180 . . . . . true

_____ _____

Alternate solution

If you like, you can simply work with the equation given.

(3/4)x + 30 = 180 . . . . collect terms

(3/4)x = 150 . . . . . . . . . subtract 30

x = 200 . . . . . . . . . . . . multiply by 4/3

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2 years ago