After 5 months of saving money, Nikki had saved $350. She has now been saving for 9 months and has saved $690. Find the percent of increase in the amount of Nikki's savings. Round the percent to the nearest tenth if necessary.

Question

Mathematics

Johanna Perry

11 August, 04:13

After 5 months of saving money, Nikki had saved $350. She has now been saving for 9 months and has saved $690. Find the percent of increase in the amount of Nikki's savings. Round the percent to the nearest tenth if necessary.

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Avah · Answer 1

21%

Step-by-step explanation:

for the first 5 months Nikki saved $350 so she saved 70 every month. for the next 4 months she saved 690-350=340, so 85 per month. The rate of increase should be (85-70) / 70=.214 round it to the nearest tenth is. 21, to find the percentage just multiply 0.21 by 100 you get 21%