A student earned 42 out of 50 points on the last test. What percent correct did the student earn?

Mathematics

1 answer:

brilliants [131]3 years ago

8 0

Answer: 84%

Step-by-step explanation:

1. You know that the student earned 42 out of 50 points on the last test.

2. Then, to calculate the percent the student earned, you must divide 42 points by 50 points and then you must multiply by 100, as you can see below:

Let's call $x$ the percent the student earned. Then:

$x=\frac{42points}{50points}*100$

$x=84$ %

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I think it should be $24x^{2}$

Step-by-step explanation:

When the question said area of the cube, I think it was supposed to be surface area, which would $6a^{2}$ where a is the length of one edge. Given that the length of one edge is 2x, we would plug in 2x to the equation to get $6*(2x)^{2}$ which would become $24x^{2}$ .