Let b=# of boys
Let g=# of girls
B+g=40
G=2b-5
Sub g into first equation and solve for b
B+2b-5=40
3b-5=40
3b=40+5
3b=45
B=45/3
B=15
Sub B into the second equation
G=2b-5
G=2(15)-5
G=30-5
G=25
Hope this helps!
Answer:
0.21
Step-by-step explanation:
Uh for the second question, his height in decimal form would be 4.75, kind sir.
Hope this helped,
She has paid $460 after joining the gym for a year. First there is the joining fee of $100. Then $30 a month for a year is 30 x 12 which equals $360.
