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Mathematics

1 answer:

Andrew [12]3 years ago

5 0

Answer:

24 ounces of solution B
16 ounces of solution A

Step-by-step explanation:

The largest contributor of salt to the mix is the 45% solution (B), so we'll let our variable (b) represent the quantity of that. The total amount desired is 40 ounces, so the quantity of solution A is (40-b) ounces. Then the amount of salt in the mix is ...

0.45b +0.20(40-b) = 0.35(40)

Simplifying and subtracting 0.20(40), we get ...

0.25b = 0.15(40)

b = 40(.15/.25) = 24

(40-b) = 16

The scientist should use 24 ounces of Solution B and 16 ounces of Solution A.

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There are 1500 bees in a colony. Each month, the number of bees decreases by 12%. There are 800 flowering plants in a garden. Ea

Evgen [1.6K]

So the answer to this question is:

A= bees: f(t) = 1500 × (0.88)∧t
plants: g(t) = 800 - 25×t

B: (Bees) 1500 × (0.88)∧6= 696.60
After 6 months (696 bees ):
800 - 25×6 = 650 (Flowering Plants)
After 6 months:
650 flowering plants

C: 1500 × (0.88)∧t=800 - 25×t
t = 6.779965672

Answer is it will take 7 months or 6 for the bees and the plants.
Hope this helps!

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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