The 4-liter acid material was a lower concentration than 40%. Call it 4 liters of x percent acid.
4x+10*40
————— =30
X+10
$1=4 quarters because 1 quarter = $0.25
22 x 4 = 88 quarters
Answer:
x = 9
Step-by-step explanation:
Distribute
2x+2*5=3x+1
2x+10=3x+1
Subtract 3x from both sides
-x+10=1
Subtract 10 from both sides
-x=-9
Multiply both sides by -1
x=9