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Dmitrij [34]
3 years ago
11

90 students take a test.

Mathematics
1 answer:
Anika [276]3 years ago
5 0

Answer:

Step-by-step explanation:

If there are 90 students and the ratio of boys to girls is 3:2, that means 3x+2x=90

Combine like terms: 5x=90

x=18

2x (girls)=36

3x (boys)=54

1/3 of the boys scored full marks, so 54/3=18 boys scored full marks

The number of girls who scored full marks is half of the number who did not score full marks means that 1/3 of the girls scored full marks. 36/3=12, so 12 girls scored full marks.

(I don't know what the question is sorry if it's incorrect but there's not enough information)

Hope this helps!

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(4√3 − 2√5)(3√10 + 5√6) simplify show all work
bulgar [2K]

Answer:

2√30 + 30√2

Step-by-step explanation:

(4√3 − 2√5)(3√10 + 5√6) simplify

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Hank and Debra each own two milking cows. One day, they milked their cows and compared the amount of milk the cows produced in t
drek231 [11]

Answer:

The answer to your question is  2 7/24

Step-by-step explanation:

Data

Hank's cows = 4 3/4   and  4  1/8

Debra's cows = 5 1/2  and  5 2/3

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2.- Sum up Hank's milk and Debra's milk

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Debra's      11/2 + 17/3 = 33/6 + 34/6 = 67/6

3.- Subtract Hank's milk to Debra's milk

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-Convert into a mixed fraction

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                                7

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4.- Conclusion

Debra milked 2 7/24 more milk than Hank

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