The concentration of solution would be the amount of the molecule divided by the volume. In this case, the solution concentration is 36% and the volume is 4 quarts + 1 quarts= 5 quarts. You are asked the concentration before 1 quarts added. The alcohol content should be same for both solutions. The answer should be:
concentration = alcohol content/ volume
alcohol content =concentration * volume
alcohol content1 =alcohol content2
36% * 5 quarts = concentration2 * 4quarts
concentration2= 36% * 5 quarts / 4 quarts= 45%
Answer:
<h2>2x squared + x - 3 </h2>
Step-by-step explanation:
Answer:
x =
Step-by-step explanation:
Given
a(x - b) = x ← distribute parenthesis on left side
ax - ab = x ( subtract x from both sides )
ax - x - ab = 0 ( add ab to both sides )
ax - x = ab ← factor out x from each term on the left side
x(a - 1) = ab ← divide both sides by a - 1
x =
Step-by-step explanation:
1Ans: 4x = -36
× = -36/4
× = -9
2Ans: 5x -15 = 50
5x = 50 + 15
5x = 65
x = 65/5
x = 13
3Ans: 4(x + 2) -17 = 35
4x +8 -17 = 35
4x -9 = 35
4x = 35 +9
4x = 44
x = 44/4
x = 11
4Ans: 6x +12 = 4x -18
6x -4x = -18 -12
+2x = -30
x = -30/+2
x = -15
5Ans: 1/2 (4x -10) +5 = x -11
0.5 (4x -10) +5 = x -11
2x -5 +5 = x -11
2x = x -11
2x - x = -11
1x = -11
x = -11/1
x = -11
Answer:
30 sand bags
Step-by-step explanation:
6 x 10 = 60
180 - 60 = 120
120/5 = 24
24 + 6 = 30
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