It c so you see I can help you
Answer:
The first common multiple is 60
Step-by-step explanation:
The first common multiple can be found by making a list of multiples of each number and finding the first one that is the same:
12x1=12
12x2=24
12x3=36
12x4=48
12x5=60
15x1=15
15x2=30
15x3=45
15x4=60
Notice that 12x5=60 and 15x4=60
This is the first multiple they have in common, therefore 60 is the first common multiple.
Answer:
b) Take the current height, and add up 15.
c) y = 80x + 15
where y is the height of the water in the pool, in centimeters
where x is the time since the hose is in the pool, in hours
d) 180 = 80x + 15
165 = 80x
x = 165/80 = 2.0625 hours, which is also 2 hours and 3 minutes.
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