Question

Mr. Bird’s son is on a coed soccer team with Mrs. Twiddy’s daughters for a total of 36 team members. The number of girls is 3 less than double the number of boys. How many of the players are boys and how many are girls?
Write a system of equations to model the problem.
Solve the system by substitution, show your work.
Give your final answer in a complete sentence. @perl

Answer 1

Let `g` stand for number of girls, let `b` stand for number of boys.

Answer 2

B + G = 36
G = 2B - 3

Answer 3

ok

Answer 4

can you try to solve that now (use substitution)

Answer 5

i dont know how

Answer 6

we know that G = 2B - 3 , so we can substitute that in the first equation

Answer 7

ok how do u do that lol

Answer 8

B + G = 36
G = 2B - 3

therefore
B + (2B -3 ) = 36

Answer 9

ok

Answer 10

you can use the equation
$$
\Large { n_1 \sin\theta_1 = n_2 \sin \theta_2
}
$$

Answer 11

oops wrong post

Answer 12

lol

Answer 13

does that make sense, how i got

B + (2B -3 ) = 36

Answer 14

yes

Answer 15

ok collect like terms and solve that

Answer 16

ok

Answer 17

3B-3+36?

Answer 18

correct

Answer 19

3B - 3 = 36

now add 3 to both sides

Answer 20

\[3B - 3 = 36 \]

Answer 21

3=33?

Answer 22

@perl

Answer 23

$$ \Large{
\\~\\3B - 3 = 36
\\~\\\\ 3B = 39
\\~\\\\ B = \frac {39}{3}
}$$