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Tpy6a [65]
3 years ago
6

Need help on this please!!! 10 points!!!

Mathematics
1 answer:
coldgirl [10]3 years ago
4 0

Answer:

I think the answer is the first one ... am i right...

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Please help me!!! brainliest
nevsk [136]

Answer:

1, 2, 4

Step-by-step explanation:

  1. 4 1/12·2 2/3 = 49/12·11/4 = 49/12·33/12 = 1617/144 = 11 11/48 Good
  2. 2 1/5·6 1/4 = 11/5·25/4 = 44/20·125/20 = 5500/400 = 13 3/4 Good
  3. 1 1/2·3 1/5 = 3/2·16/5 = 15/10·32/10 = 480/100 = 4.8 Doesn't Work
  4. 3/4·8 1/5 = 3/4·41/5 = 15/20·164/20 = 2460/400 = 6 3/20 Good
  5. 5 1/2·5 = 11/2·5 = 55/2 = 27 1/2 Doesn't Work

(Note: Division of big numbers should be done by simplification, although not shown here.)

5 0
2 years ago
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grandpa joe wants to open an account for his grandchildren that he hopes will have $80,000 in it after 20 years. how much must h
kirill [66]

Answer:

$46185.04

Step-by-step explanation:

80000 = X(1 + 0.0275/12)^(20×12)

X = 46185.03749

3 0
3 years ago
The measure of an angle is 78°. What is the measure of a complementary angle?
ki77a [65]
First you need to know the definition of a complementary angle. That means that two angles add up to 90 degrees, or a right angle.

To find an angle complementary to a 78 degree angle, you need to subtract 78 from 90. 

90 - 78 = 12
6 0
3 years ago
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Dave rented a limousine for his wife's birthday. The hourly rate is $80. They used the limousine for 4 hours, plus Dave gave the
soldier1979 [14.2K]
He would spend $, he spent $320 for just renting the limousine then spent an extra $32 for the 10% tip
3 0
3 years ago
You have to write 0.33 as a fraction.how do you choose the denominator?
yaroslaw [1]
100 is the easiest because 1/100 =0.01
33/100=0.33
8 0
3 years ago
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