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lilavasa [31]
3 years ago
15

Can you please help me​

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

i would say none of the above can i get brainlest

Step-by-step explanation:

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there is a beaker of 3.5% acid solution and a beaker of 6% acid solution in the science lab. Mr. Larson needs 200ml of 4.5% acid
disa [49]
Below are the choices:

A. 80 mL of the 3.5% solution and 120 mL of the 6% solution 

<span>B. 120 mL of the 3.5% solution and 80 mL of the 6% solution </span>

<span>C. 140 mL of the 3.5% solution and 60 mL of the 6% solution </span>

<span>D. 120 mL of the 3.5% solution and 80 mL of the 6% solution
</span>
Let fraction of 3.5% in final solution be p. 

<span>p * 3.5 + (1 - p) * 6 = 4.5 </span>

<span>3.5p + 6 - 6p = 4.5 </span>

<span>2.5p = 1.5 </span>

<span>p = 3/5 </span>

<span>3/5 * 200 = 120 </span>

<span>Therefore the answer is B. 120 ml of 3.5% and 80 ml of 6%.</span>

6 0
3 years ago
a bank tellers hourly wage will increase from $24 to $27.60. what percent increase does this represent?a stereo is marked down $
Aleks04 [339]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
You are saving money to buy a new video game. You already have $12, and each week you save another $5. Which expression can you
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3 years ago
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What’s the correct answer for this? Select the ones that apply
Verizon [17]

Answer:

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3 years ago
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