The existence proof of the empty set is an absolute gem
Answer:
c=45 and A=145
M=15 and L=115
Step-by-step explanation:
Answer:
He must sell 800 bushels.
Step-by-step explanation:
Divide 2400 by 3, giving you 800.
Answer:
7 are boys
Step-by-step explanation:
Make a system of equations where g is for girls and b is for boys.
b+g=26
g=3b-2
Substitute "3b-2" in for "g" in the first equation.
b+(3b-2)=26
Rewrite without the parentheses because it's addition and not multiplication.
b+3b-2=26
Combine like terms.
4b-2=26
Add 2 to both sides.
4b=28
Divide by the coefficient of the variable to get it alone.
b=7
