Respuesta :
Answer:
apples are $0.90 and bananas are $0.40
Step-by-step explanation:
3a+2b=$3.50
a+2b=$1.70
take the second equation and isolate one variable so it becomes a=$1.70-2b then you plug that into the a in the first equation
3($1.70-2b)+2b=$3.50
use the distributive property with the parenthesis
$5.1-6b+2b=$3.50
combine like terms
$5.1-4b=$3.50
subtract $5.1 from both sides
-4b=$-1.6
divide both sides by -4
b=$0.4
plug the $0.4 into the equation for b
3a+2($0.4)=$3.5
multiply the parenthesis
3a+$0.8=$3.5
subtract
3a=$2.7
divide
a=$0.9