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3 years ago

14

Rachel can read 13 pages of a book in 4/5 of an hour. How many pages can she read in 4 hours?

1 answer:

garik1379 [7]3 years ago

4 0

Answer:

my answer is 17 5/5

Step-by-step explanation: so what i did was that i add 13 and 4/5 but i can't add like that so i put 13/1 + 4/5 and they don't have the same denominator so i did 1 x 5 so if i do it on the bottom i have to do it on the top and so i did 13 x 5 and 13 x 5 is 65 and 1 x 5 is 5 and so my new fractions are 65/5 + 4/5 and i add both them and got 69/5 so i divided 69 and 5 and got 13 4/5 and then i add 69/5 plus 4 and turn the 4 into 4/1 and multiply 1 x 5 and have to do it on the top so 4 x 5 and got 20/5 and now add 69/5 + 20/5 and got 89/5 as my answer and divided 89 divided by 5 and got 17 5/5 and know it that is my answer.

hope it helps you!

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A cake is made from the ingredients listed below.

Oksana_A [137]

To make a cake :-

Quantity of flour needed = 500 g

Quantity of butter needed = 450 g

Quantity of sugar needed = 470 g

Quantity of mixed fruit needed = 1.8 kg = 1000 g + 800 g

Quantity of eggs needed = 70 × 4 = 280 g

It's weight after adding all the ingredients =

=500 + 450 + 470 + 1000 + 800 + 280

= 3500 g

Mass that got lost while baking the cake :

<h3>= 12 % of 3500 </h3>

$= \frac{12}{100} \: of \: 3500$

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$=\frac{(12 \times 3500)}{100}$

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Final mass = Initial mass - mass that got lost

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Option A

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