5a = 5*a
15a = 5*3*a
gcf = the terms common to both
gcf = 5a
lcm = list the terms the smallest number of times they appear in each
lcm = 5*3*a
lcm = 15a
Answer:
a) x=23/9 or 2 5/9 or 2.5
b) x=5-y
im pretty sure the answer is A) 148*3/3 And B) 148*25/25.
if a number is like this: 3/3, 4/4, 5/5 you can count it as a 1.
and 1 * 148 is 148.
as i said before if a number is like this: 25/25, 62/62, 75/75. you can count that as 1.
so, 148 * 1 is 148
{(1, 2); (2, 2); (3, 2); (4, 2)}
because for each x, there's only one corresponding y.
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