Amath club has 40 members. the number of girls is less than 2 times the number of boys. how many members are boys? how many members are girls?

Complete Question:

A math club has 40 members. the number of girls is five less than 2 times the number of boys. how many members are boys? how many members are girls?

There are 15 boys and 25 girls in math club.

Step-by-step explanation:

This math club has 40 members.  So, the members counts are combined counts of boys and girls.  From this we can write

                                 B + G = 40

Where,

B = boys and G = girls.

The second sentence gives us

                               G = 2 B - 5

Using substitution, we can revise the first equation using the expression for 'G' from the second equation.

                                 B + G = 40

                                 B + (2 B - 5) = 40

                                 3 B = 40 + 5

                                 3 B = 45

                                  B = 15

Hence, there are 15 boys.  

Given that there are 15 boys, use this value and evaluate G

                                     15 + G = 40

                                     G = 25  

So, there are 25 girls.

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: