Answer:
-11
Step-by-step explanation:
Answer:
Hope you find it helpful and usef
The least common multiple (LCM) to determine the least common denominator for 2/3, 5/6, and 9/4 = 12.
Answer:
x = 44/19, y = 33/20
Step-by-step explanation:
Multiply the first eq by 18, to get:
90/y - 36/x = 39
so 36/x = 90/y - 39
in this form we can plug it into the second eq:
90/y - 39 - 24/y = 1 =>
66/y = 40 =>
y = 66/40 = 33/20
Fill that in the first:
100/33 - 2/x = 13/6 =>
200/66 - 143/66 = 2/x =>
57/66 = 2/x =>
57x = 2*66
x = 132/57 = 44/19
Answer:240
Step-by-step explanation:
40 pencils in one minute
2 hours=120 minutes
40*120=480
480/2=240 boxes
