3 years ago

What is 2 2/5×2 7/9 in simplest mixed number form?

Mathematics

1 answer:

Scorpion4ik [409]3 years ago

7 0

Answer:

6 2/3

Step-by-step explanation:

2 2/5 * 2 7/9

Change each number to an improper fraction

2 2/5 = (5*2+2)/5 = 12/5

2 7/9 = (9*2+7) = 25/9

12/5 * 25/9

Rewriting

25/5 * 12/9

5/1 * 4/3

20/3

Now changing to a mixed number

3 goes into 20 6 times with 2 left over

6 2/3

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David scored 1/2 of Lee's result. David scored 45%. What could be Lee's result be in percentage.

densk [106]

Answer: 90%

Step-by-step explanation:

you willhave to muitply by 2 becuse david only score half of lee's

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3 years ago

The area of Terry's room at the old house was 96 ft.2. The area of Terry's room at the new house is 108 ft.2

Finger [1]

Answer:

12.5%

Step-by-step explanation:

First we need to calculate the change in the area of Terry's room this is

108 ft2 - 96 ft2 = 12 ft2

Then we use a direct proportion in order to find the percentage

96 ft2 ----- 100%

12 ft2 ----- p?

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What is the equation of a line that passes through (6,3) and has a slope of -2/3

goldenfox [79]

Answer:

y=mx+b = 3y=6x+-2/3

Step-by-step explanation:

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3 years ago

Sandra walks two miles in 32 minutes, and she runs two miles in 24 minutes. Which of the following equations can be used to calc

Ludmilka [50]

I think it is 32 divided by 24=X

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3 years ago

A bag contains 15 cups of sugar if 3/4 of a cup is needed for each batch of cookies what's the greatest number of batches of coo

tensa zangetsu [6.8K]

Answer:

20 batches

Step-by-step explanation:

Cups of sugar in a bag = 15

Cups of sugar per batch of cookie = 3/4 cup

Cups of sugar per batch of cookie : batch of cookies = 3/4 : 1

what's the greatest number of batches of cookies that can be made with the bag of sugar

Let

x = batches of cookies made with a bag of sugar

Cups of sugar per batch of cookie : batch of cookies = 15 : x

Equate the ratios

3/4 : 1 = 15 : x

3/4 ÷ 1 = 15/x

3/4 × 1/1 = 15/x

3/4 = 15/x

Cross product

3 * x = 4 * 15

3x = 60

x = 60/3

x = 20

x = batches of cookies made with a bag of sugar = 20 batches

8 0

3 years ago