Answer:
The math club needs 25 uniforms for girls and 10 uniforms for boys.
Explanation:
To solve this problem we must follow every step of the statement
We raise each of the incognites:
B = boys
G = girls
The first equation:
B + G = 35
And the second equation; using the expression "there are 5 more girls than twice the number of boys in the club".
G = 2*B + 5
Now we replace in the first equation:
B + (2*B+5) = 35
B + 2*B + 5 = 35
3*B = 30
B = 10
and
G = 35 - 10
G = 25
Therefore, the math club needs 25 uniforms for girls and 10 uniforms for boys
