First you divide 8 by 125, with a new equation of:
x^3=0.064
You then take the cube root of 0.064, which happens to be 0.4
x=0.4
To make sure you can do 0.4*0.4*0.4.

8 0

3 years ago

A pair of shoes cost $40 is marked up by 25%. What is the RETAIL PRICE?

Nitella [24]

The retail price is $50 because 25% of 40 is 10 and 10+40=50.

8 0

3 years ago

Y = 1/4x if x is 20, what is the value of y ?

AveGali [126]

Y = 1/4x
Y= 1/4(20)
Y=5

5 0

2 years ago

Read 2 more answers

How do I solve the length of AC?

Crank

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∆ABC and ∆ADE are similar triangles.

Thus ;

$\frac{AD}{AC} = \frac{DE}{BC} = \frac{AE}{AB} \\$

So :

$\frac{5}{3 + 2x} = \frac{4}{8} \\$

$\frac{5}{3 + 2x} = \frac{1}{2} \\$

Inverse both sides

$\frac{3 + 2x}{5} = \frac{2}{1} \\$

$\frac{2x + 3}{5} = 2 \\$

Multiply sides by 5

$5 \times \frac{2x + 3}{5} = 5 \times 2 \\$

$2x + 3 = 10$

Thus ;

$AC = 2x + 3 = 10$

$AC = 10$

Done...

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7 0

2 years ago