3 years ago

Help Please Just with part B...PLEASE!!!

Mathematics

1 answer:

dsp733 years ago

3 0

Answer:

see explanation

Step-by-step explanation:

Note that $\frac{6}{8}$ can be simplified by dividing the numerator and denominator by 2, so that

$\frac{6}{8}$ = $\frac{3}{4}$ in simplest form

Thus parsley and scallions are the same amount. Ramon is correct.

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A student has a 2% salt water solution and a 7% salt water solution. To best imitate salt water at a local beach, he needs 1 lit

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Let

x-------> the amount of $2\%$ solution

y--------> the amount of $7\%$ solution

we know that

$2\%=0.02\\7\%=0.07\\3.5\%=0.035$

$x+y=1$

$y=1-x$ -------> equation A

$0.02x+0.07y=0.035$ -------> equation B

substitute equation A in equation B

$0.02x+0.07(1-x)=0.035$

$0.02x+0.07-0.07x=0.035$

$0.05x=0.035$

$x=0.7\ liters$

find the value of y

$y=1-x$

$y=1-0.7=0.3\ liters$

therefore

The student need $0.7\ liters$ of $2\%$ solution and $0.3\ liters$ of $7\%$ solution

<u>the answer is</u>

A) The percent values were written incorrectly in the equation

B) The amount of 7% solution should be written as 1 – x, not x – 1.

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3 years ago

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Answer the questions below.

DedPeter [7]

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Step-by-step explanation:

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Step-by-step explanation:

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