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3 years ago

1. Fifty-six percent of what is 23? What proportion would you write to solve this problem?

Mathematics

1 answer:

Brums [2.3K]3 years ago

6 0

Answer:

41.07

Step-by-step explanation:

1) lets use the formula, (%/100)=is/of

so:

is=23

of=x

%=56

$\frac{56}{100} =\frac{23}{x}$

cross multiply

56x=2300

x=41.07

so the proportions I would use are:

56/100 and 23/x

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Which of these statements is correct?

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Answer:

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Step-by-step explanation:

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Step 2 : Substitute y in terms of x from step 1 in the second equation.

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This statement is not true as there are no solutions.

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Solve these linear equations simultaneously

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8x - 3y = 10

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Step 2 : Substitute x in terms of y from step 1 in the second equation.

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Solve these linear equations simultaneously

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Step 2 : Substitute x in terms of y from step 1 in the second equation.

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3 years ago

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Estimate to find the quotient if 823 divided by 23

ivanzaharov [21]

Answer:

Step-by-step explanation:

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I need help with #1 of this problem. It has writings on it because I just looked up the answer because I’m confused but I want t

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In the figure below

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In the above diagram,

$\begin{gathered} BC=BY+YC \\ \Rightarrow BC=15\text{ + y} \end{gathered}$

Thus, from the theorem of similar triangles,

$\begin{gathered} \frac{BX}{BA}=\frac{BY}{BC}=\frac{XY}{AC} \\ \frac{9}{15}=\frac{15}{15+y} \end{gathered}$

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