EASY BRAINLESS...

Mathematics

1 answer:

777dan777 [17]3 years ago

7 0

Answer:

There are 315 salmon and 135 fish that aren't salmon.

Step-by-step explanation:

The number of salmon in the aquarium would be 70% of the 450 fish, so to find the number you multiply .7 by 450:

450 × .7 = 315

So, <u>there are 315 salmon</u>. To find how many fish are not salmon, you would subtract 315 from 450:

450 - 315 = 135

So, <u>135 of the fish are not salmon</u>.

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Elena receives $131 per year in simple interest from three investments totaling $3000. Part is invested at 3%, part at 4% an

ioda

Answer:

Elena invested $ 1,700 at 5%, $ 700 at 4%, and $ 600 at 3%.

Step-by-step explanation:

Given that Elena receives $ 131 per year in simple interest from three investments totaling $ 3000, and part is invested at 3%, part at 4% and part at 5%, and there is $ 1000 more invested at 5% than at 4%, to find the amount invested at each rate, the following calculations must be performed:

1500 x 0.05 + 500 x 0.04 + 1000 x 0.03 = 75 + 20 + 30 = 125

1600 x 0.05 + 600 x 0.04 + 800 x 0.03 = 80 + 24 + 24 = 128

1700 x 0.05 + 700 x 0.04 + 600 x 0.03 = 85 + 28 + 18 = 131

Therefore, Elena invested $ 1,700 at 5%, $ 700 at 4%, and $ 600 at 3%

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3 years ago

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Answer:

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