3 years ago

Martha Lou needs 1 3/4

Mathematics

1 answer:

Anastasy [175]3 years ago

8 0

Answer:

7 small pillows.

Step-by-step explanation:

1. Let's get rid of the whole parts of fractions -> 1 3/4=7/4, 12 1/4=49/4

2. To find how many pillows she can make divide the available fabric by the amount needed -> (49/4)/(7/4)=49/7=7.

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luda_lava [24]

Average speed is 12.6 miles per hour

<em><u>Solution:</u></em>

Given that team tool bella canoed $15\frac{3}{4}$ miles in $\frac{5}{4}$ hours

To find: average rate of speed in miles per hour

From given information,

$distance = 15\frac{3}{4} \text{ miles } = \frac{15 \times 4+3}{4} = \frac{63}{4} \text{ miles}$

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To find the speed we use the below formula,

$speed = \frac{distance}{time}$

Substituting the given values we get,

$speed = \frac{\frac{63}{4}}{\frac{5}{4}}\\\\speed = \frac{63}{4} \times \frac{4}{5} = \frac{63}{5} = 12.6$

Thus average speed is 12.6 miles per hour

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3 years ago

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a school has 450 learners.the ratio of boys to the number of girls is 7:8 determine the number of boys and girls in the school

Tom [10]

Answer:

Boys : 210

girls: 240

Step-by-step explanation:

7+8=15

450/15=30

boys: 30*7= 210

girls: 240

to make sure......

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