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Aleksandr [31]
3 years ago
5

Please help,I don’t get this and my friends also need your help

Mathematics
1 answer:
ira [324]3 years ago
8 0
STEP 1:
Add the number of total students
= 27+25+23
=75


STEP 2:
Find the percentage that 18 out of 75 students is.

18/75=x/100

cross multiply
(18*100)=(75*x)

1800=75x
divide both sides by 75
24%=x

Check:
75 * 24%= 18

Hope this helps! :) Good luck!
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matrenka [14]

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Step-by-step explanation:

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2x+y=-9<br> -3x+11=y whathe is the answer
insens350 [35]
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8 0
3 years ago
David pays $335 in advance on his account at the gym. Each time he visits the gym , $6 is deducted from the account. Write an eq
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Answer:

x = 335 - (6 * v)

Step-by-step explanation:

In order to calculate the value remaining, we need to first multiply the daily cost of each visit by the number of visits made to the gym which is represented by the variable (v). Once we have this cost of all the days then we subtract this amount from the current account balance in order to get the new remaining balance which is represented by x.

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7 0
3 years ago
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Andre45 [30]

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Svetlanka [38]

Answer:

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Step-by-step explanation:

The generic model for a line equation is:

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3 0
3 years ago
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