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fgiga [73]
3 years ago
11

Drag each expression to the correct category.

Mathematics
1 answer:
Anna35 [415]3 years ago
5 0

( -  \frac{4}{9} )( \frac{7}{4} )  =  \:  \: negative

( - 2 \frac{3}{4} )( - 1 \frac{1}{5} ) =  \:  \: positive

(3)( - 3)( - 3)( - 3)( - 3) =  \:  \: positive

( -  \frac{1}{6} )( - 2)( -  \frac{3}{5} )( - 9) =  \:  \: positive

( -  \frac{4}{7} )( -  \frac{3}{5} )( - 9) =  \:  \: negative

( -  \frac{10}{7} )( \frac{8}{3} ) =  \:  \: negative

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I think the answer would be none
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2. The ratio of boys to girls in the school
andrew11 [14]
Since the ratio is 3:4, and 12/4 is 3 than you do 3x3 and get 9 so the answer is 9:12 or 9 boys and 12 girls. To check your answer, you can do 3/4 (for 3:4) and that is 0.75. If you do that with 9:12 you also get 0.75.
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A book is in the shape of a right rectangular prism. It measures 8 1/2 inches tall, 7 inches wide, and 2 1/2 inches thick. What
Alenkasestr [34]
Hello!

The formula for volume of a rectangular prism is:

V = lwh

Let's convert the dimensions to decimals, and then use the formula to solve.

8 1/2 = 8.5 as a decimal.

7 = 7 as a decimal.

2 1/2 = 2.5 as a decimal.

Multiply:

V = 8.5 × 7 × 2.5

V = 59.5 × 2.5

V = 148.75

148.75 = 148 3/4 as a fraction because if you convert 3/4 to a decimal by dividing the numerator by the denominator, it equals 0.75.

ANSWER:

The volume of the book is 148 3/4 inches cubed.

6 0
3 years ago
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Lin’s road trip is 75 miles long. She has completed 20% of a trip so far. How many miles has Lin gone so far?
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You're basically told that Lin has traveled 20% of 75. Since 20% is one fifth, she has traveled 75/5=15 miles so far.

7 0
3 years ago
Find the mean of 81, 97, 99, 89, 91, 76 (round to the hundredths)
Marta_Voda [28]

Answer:

88.83

Step-by-step explanation:

To find the mean of a set of numbers is to find the average a set of numbers.

To solve for the mean you have to add all of the values together and divide that sum by the number of values there are.

Ex. 81, 97, 99, 89, 91, 76

     81 + 97 + 99 + 89 + 91 + 76 = 533

     533 / 6 = 88.83

               ↓

     (number of values)

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3 years ago
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