Answer:
[See Below]
Step-by-step explanation:
✦ If
and
then multiply:
✧ 
So
.
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18 = 2×3×3
30 = 2×3×5
The LCM will have factors of 2, 3², and 5. (Choose the highest power of each prime.)
2×3×3×5 = 90 is the LCM of 18 and 30.
Answer:
34 and 19.
Step-by-step explanation:
Since the sum of the two numbers is 53, x+y=53. Since the difference is 15, x-y=15.
Adding x+y=53
and x-y=15,
The ys cancel, leaving 2x=68, or x=34. Therefore, 34-y=15, or y=19.
(4,1)(7,-2)
slope = (-2 - 1) / (7 - 4) = -3/3 = -1
66. First, you have to take the 4

and change it from a compound fraction so you can multiply so it becomes


67. First, take 4

and it becomes

. 9 becomes

in order to work with the fractions.