3x+4y=12
9x-2y=15
we will use elimination
multiply 3x+4y=12 by -3
-9x-12y=-36
9x-2y=15
_________ add
-14y=-21
÷-14 both sides
y=1.5
find x
3x+4 (1.5)=12
3x+6=12
-6 both sides
3x=6
÷3 both sides
x=2
x=2
y=1.5
First add 150 + 60 = 210
Second divide 500 divided by 210 = 2.3
Jennifer can stay up to 2 nights.
Answer:
49.6
Step-by-step explanation:
just divide 397 by 8
<u>Answer:</u>
The sale price per piece of chicken was $0.69
<u>Step-by-step explanation:</u>
• We have to first calculate the price of 1 piece of chicken when 12 pieces cost $9.48.
Original price per piece = $9.48 ÷ 12
= $0.79
• According to the question the price per piece decreased by $0.10 during the sale.
∴ Sale price per piece = $0.79 - $0.10
= $0.69
