Answer:
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Step-by-step explanation:
Answer:
The answer is 1/2
Step-by-step explanation:
Find greatest common denominator
You can square the whole problem to cancel out the square root. Might make things easier.
Answer:
The number is 4
Step-by-step explanation:
Let the number = 'x'
Reciprocal of 'x' = 1/x
Reciprocal of 2 = 1/2
8 times the reciprocal of 'x' = 

Now multiply both sides by x

Now divide both sides by 2

x = 4
3 hours =180mins
marrisa 15,28,42,56,68,80,92,104,116,128,140,152,164,176,188,
john 15,45,75,105,145,175,205
stephanie 15,60,105,150,195
no there alarm didnt go at the same tiem after the first time