How do I do this number 24

Mathematics

1 answer:

prohojiy [21]3 years ago

4 0

You want to isolate the x first.

Subtract 3/7 from both sides.

That will result in -2/3x = 1/2 - 3/7

(common denominator = 14)

-2/3x = 1/14

Find x by multiplying both sides by 3/-2

Find the answer yourself after :P

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In preparing a certain ointment, a pharmacist used 28.35 g of zinc oxide instead of the 31.1 g called for. Calculate the percent

Vilka [71]

Answer: 9.70%

Step-by-step explanation:

The formula to find the percentage error is given by :-

$\%\text{ error}=\dfrac{|\text{Estimate-Actual}|}{\text{Actual}}\times100$

Given : Actual mass of zinc oxide used by pharmacist = 28.35 g

Estimated mass of zinc oxide used by pharmacist =31.1 g

Now, $\%\text{ error}=\dfrac{|31.1-28.35|}{28.35}\times100$

i.e. $\%\text{ error}=\dfrac{2.75}{28.35}\times100$

i.e. $\%\text{ error}=9.70017636684\approx9.70\%$

Hence, the percentage of error on the basis of the desired quantity.= 9.70%

5 0

4 years ago

The answer to this...3×25/6

nignag [31]

Ur answer is
12.5
heres what helps me when im stuck hope it helps u =^-^=
pemdas steps
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6 0

3 years ago

Solve the following linear quadratic system of equations algebraically. y=^2+3x-2 y+3=5x

USPshnik [31]

Answer:

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