Answer:
96 square units
Step-by-step explanation:
The area of a parallelogram is calculated by multiplying height × base
The height given for this parallelogram is 12 units and base is 8 units
12 × 8 = 96 square units
Answer:
495 milliliters of the 95% mixture are needed.
Step-by-step explanation:
Given that I need a 90% alcohol solution, and on hand I have a 55 ml of a 45% alcohol mixture, and I also have 95% alcohol mixture, to determine how much of the 95% mixture will I need to add to obtain the desired solution, the following calculation must be performed:
55 x 0.45 + 45 x 0.95 = 67.5
25 x 0.45 + 75 x 0.95 = 82.5
15 x 0.45 + 85 x 0.95 = 87.5
10 x 0.45 + 90 x 0.95 = 90
10 = 55
90 = X
90 x 55/10 = X
4,950 / 10 = X
495 = X
Thus, 495 milliliters of the 95% mixture are needed.
7\8-2\3
lcm=24
(24\8=21)
(24\3=16)
answer=21-16=5
5\24
To reduce fraction we have to divide numerator and denominator by the same number. We can repeat operation few times.
Lets do this
- its the most reduced form. We cant divide 7 and 20 by the same number to not obtain number with coma. (because 7 is prime number so can be divided only by 1 and by 7)
