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sineoko [7]
3 years ago
10

Of the 36 students in the environmental club, 15 or boys and 21 are girls. The president of the club wants to add more boys so t

hat the boys represent 50% of the students in the club.
Mathematics
1 answer:
schepotkina [342]3 years ago
4 0
Because 50% of something means half (because 100-50=50), he would have to make the number of girls and boys equal. Since there are 21 girls, he has to make it so there are also 21 boys.
So, if we know that 21-15=6, this means he would have to add 6 boys to the club if he wants the girls and boys equal.
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The answer is £4.16

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
How do you check 3(2x-5)-4=33 ?
amid [387]

First multiply 2x - 5 by 3 amd will open the brackets

3(2x-5)-4=33

6x - 15 - 4 = 33

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Take -19 to other side and its sign will be become +

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3 years ago
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Solve the system using elimination. –10x – 3y = –18 –7x – 8y = 11
Naily [24]

ANSWER

x=3, y=-4

EXPLANATION

The given system is :

First equation:

- 10x -  3y =  - 18

Second equation:

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Let us multiply the first equation by 7 to get,

Third equation;

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Let us multiply the second equation too by 10 to get,

Fourth equation:

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Subtract the fourth equation from the third equation:

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59y =  -236

Divide both sides by 59.

y =  - 4

Put y=-4 into the second equation and solve for x.

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3 years ago
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nikdorinn [45]

Answer:

x = -1/2

Step-by-step explanation:

multiply the -4 to all in parentheses

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8x = -4

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divide by 8 to isolate x

x= -4/8

simplify

x= -1/2

4 0
4 years ago
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