Answer:
523
Step-by-step explanation:
(5x4)x6=9-4x93n hope it helps!
Multiply 6 and 20 and then subtract 16 which would be 104 blocks
Answer:
1st one is : 1 day
Second one is : the first one
The first number they will both say will be the least common multiple of 9 and 4.
9,18, 27, 36
4, 8, 12, 16, 24, 28, 32, 36
The first number they will say together is 36.
Answer:
67 gallons.
Step-by-step explanation:
To determine how many gallons of a 70% antifreeze solution must be mixed with 90 gallons of 15% antifreeze to get a mixture that is 60% antifreeze, the following calculation must be performed:
0.15 x 90 + 0.70 x 10 = 20.5 / 100 = 0.20
0.15 x 90 + 0.70 x 30 = 34.5 / 100 = 0.34
0.15 x 90 + 0.70 x 60 = 55.5 / 100 = 0.55
0.15 x 90 + 0.70 x 67 = 60.4 / 100 = 0.60
Thus, 67 gallons of 70% antifreeze solution will be needed to achieve a 60% mix of that solution.