Please see the pic, I'd solved in it.
Alexander saves 30% of his allowance each week. He earns $12 each week. How much money will he save in 4 weeks?
2 answers:
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1) factor the denominators: 2b/(b-1)2 - 2/ (b-1)2
2) MAKE SURE YOU HAVE A COMMON DENOMINATOR
3) combine the numerators: 2b-2/(b-1)2
4) distribute 2 from numerator: 2(b-1)/(b-1)2
5) simplify; answer is 2/(b-1)
2) MAKE SURE YOU HAVE A COMMON DENOMINATOR
3) combine the numerators: 2b-2/(b-1)2
4) distribute 2 from numerator: 2(b-1)/(b-1)2
5) simplify; answer is 2/(b-1)
Answer:
13 units
Step-by-step explanation:
Use the distance formula, d = , where (x2, y2) and (x1, y1) are two different points on the line.
Plug in the values:
d =
d =
d =
d =
d =
d = 13