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emmainna [20.7K]
3 years ago
9

I will give Brainliest AND a Cookie!

Mathematics
1 answer:
mixer [17]3 years ago
3 0

Answer:

B)

D)

Step-by-step explanation:

If you don't want to mark me as Brainliest, that's fine. I'm just glad that I could be a help.

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circumference = 2 × 3.14 × 5.4
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3 years ago
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A scientist mixes water (containing no salt) with a solution that contains 35% salt. She wants to obtain 105 ounces of a mixture
Naya [18.7K]

Answer:

60 oz of water to add

45 oz of 35% salt solution should be used

Step-by-step explanation:

Let x = amt no. ounces in the first solution

and  105 - x = amt no. of ounces in the second solution

Ist solution contains 0% salt

2nd solution contains .35(105 - x) salt

.15(105= amt of salt in mix

So.

amt of salt in 1st solution + amt of salt in 2nd solution = amt of salt in the mix

0 + .35(105 - x) = .15(105)

Let's get rid of the fractions by multipying thru the equation by 100

35(105 - x) = 15(105)

3675 - 35x = 1575

-35x = -2100

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105 - 60 = 45 oz of 35% salt solution should be used

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