Answer:
figure 6
Step-by-step explanation:
First you plug in the 40 into y which gives you 40=6x+4. Then, you subtract 4 on both sides and you're left with 36=6x so you divide 6 and x=6
Answer:
28
Step-by-step explanation:
x=blue
y=white
x+y=40
30x+20y=920
30(x+y=40) ; 30x+30y=1200___[1]
30x+20y=920 ; 30x+20y=920___[2]
[1]-[2] : 30x+30y-30x-20y=1200-920
10y=280
y=28
painter buys 28 white gallons
Answer:
Nina has $10.47 left.
Step-by-step explanation:
$20.14 minus $9.67 is $10.47
12,740 - 200= 12,540 Ft above sea level
