The net price of a hand phone after allowing trade discount of 20% was RM2,000. Find what is the list price of the hand phone.

Mathematics

1 answer:

LiRa [457]1 year ago

6 0

Answer:

RM1,600

Step-by-step explanation:

2000 * 0.20= 400

2000-400= 1600

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Need help with my homework

Volgvan

Answer:

$\displaystyle y=\frac{16-9x^3}{2x^3 - 3}$

$\displaystyle y=-\frac{56}{13}$

Step-by-step explanation:

<u>Equation Solving</u>

We are given the equation:

$\displaystyle x=\sqrt[3]{\frac{3y+16}{2y+9}}$

To make y as a subject, we need to isolate y, that is, leaving it alone in the left side of the equation, and an expression with no y's to the right side.

We have to make it in steps like follows.

Cube both sides:

$\displaystyle x^3=\left(\sqrt[3]{\frac{3y+16}{2y+9}}\right)^3$