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Sagot :
Answer:
First: 44
Second:
a: 2.5
b: 37.5
Step-by-step explanation:
For the first question it shows how many pages she can read in twenty minutes. The ratio is 20-5.
First we're going to divide, 20/5=4, it takes her 4 minutes to read 1 page.
Remember every five pages it takes her 20 minutes and there are two 5 in the number 11, so that's 40. Just one more page left, above we figured out how many minutes it takes her to read one page which is 4. 40+4=44.
Now onto the second question.
a: all we do is 10/4= 2.5
To check this we can add 2.5 4 times (or 2.5x4) and we would get 10.
B: Since we already know from the question above that you need 2.5 ounces of cheese for each pizza all we'll do is 2.5x15= 37.5
I hope this helps you and isn't confusing!
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