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3 years ago

Please help with 6a, how do you calculate the greater percentage of students who prefer juice?

Mathematics

1 answer:

MakcuM [25]3 years ago

3 0

The method is
(the students prefer juice/the total number of students)*100%

for grade7:
[(11+13+20)/(12+19+11+13+20+5)]*100%
=(44/80)*100%
=55%
For grade8:
[(13+27+4)/(20+12+13+27+4+8)]*100%
=(44/84)*100%
=52.38%
55%>52.38%
Therefore the answer is grade 7

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15.3+x=1.3-x so how do I solve it

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Answer:

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Step-by-step explanation:

Let's try getting rid of the numbers to isolate the x.

Add x on both sides to get rid of the x on the right side and to get 2x on the left side. This leaves us with 15.3 + 2x = 1.3

Subtract 15.3 on both sides to get rid of the 15.3 on the left side.

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Divide 2 on both sides to isolate the x.

The answer is x = -7

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2 years ago

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The total land area of the world is about fifty-seven million, two hundred eighty thousand square miles. Write that number

expeople1 [14]

The total land area of the world is about fifty-seven million, two hundred eighty thousand square miles is 57, 280, 000 square miles

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

Given that, we have to write the given words in number

The total land area of the world is about fifty-seven million, two hundred eighty thousand square miles

The number of zeros in million is 6

Here given that 57 million

So, 57 million means 57, followed by 6 digits

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