Answer:
d=7 and q+0=17
Step-by-step explanation:
I will solve your system by substitution.
(You can also solve this system by elimination.)
d+q=24;0.10d+0.25q=4.95
Step: Solve d+q=24 for d:
d+q+ (−q) =24+(−q) (Add -q to both sides)
d=−q+24
Step: Substitute −q +24 for d in 0.10d+0.25q=4.95:
0.10d+0.25q=4.95
0.10(−q+24)+0.25q=4.95
0.15q+2.4=4.95 (Simplify both sides of the equation)
0.15q+2.4+(−2.4) =4.95+(−2.4) (Add -2.4 to both sides)
0.15q+0=2.55
0.15q+0
/0.15 =
2.55/0.15 (Divide both sides by 0.15)
q+0=17
Step: Substitute 17 for q in d= −q+24:
d= −q+24
d= −17+24
d=7 (Simplify both sides of the equation)
