Answer:
$1.75
Step-by-step explanation:
4b+n=12;2b+3n=18.5
Step: Solve4b+n=12for n:
4b+n+−4b=12+−4b(Add -4b to both sides)
n=−4b+12
Step: Substitute−4b+12fornin2b+3n=18.5:
2b+3n=18.5
2b+3(−4b+12)=18.5
−10b+36=18.5(Simplify both sides of the equation)
−10b+36+−36=18.5+−36(Add -36 to both sides)
−10b=−17.5
(Divide both sides by -10)
b=1.75
Step: Substitute1.75forbinn=−4b+12:
n=−4b+12
n=(−4)(1.75)+12
n=5(Simplify both sides of the equation)
Answer:
b=1.75 and n=5
