40% of 15 L = 6 L of acid
20% of 25 L = 5 L of acid
This means the mixture contains a total of 11 L of acid, and with a total volume of 15 L + 25 L = 40 L, that means the mixture is at a concentration of
(11 L acid) / (40 L solution) = 0.275 = 27.5%
Answer: next two are 9:50 and 10:15
Step-by-step explanation:
The conjecture is, a term is equal to the previous term twenty five minutes later.
Opposite angles are equal, so we know that C=2x and D=5x+5 as well.
The sum of the interior angles of any quadrilateral is 360, so we have
So, the measures of the angles are
The answer to the problem is y=-13
Step-by-step explanation:
Initial value: 180
Sold each day: 14.6
Amount after day 6: ?
day 6 = x
y = amount left
180 - 14.6x = y
180 - 14.6(6) = y
180 - 87.6 = y
<u>y = 92.4</u>
