You need 30 credits to graduate high school. If you have completed 12 credits, what percent do you have left to graduate?

Mathematics

2 answers:

IRINA_888 [86]3 years ago

6 0

Answer:

you would have 60% of credits to complete before graduation.

Step-by-step explanation:

you already have 12 credits so subtract 12 from 30

30

- 12

-------------

18

that will bring you to the number 18

18 of 30 is a 60 percentage

~hope this helped :3~

hammer [34]3 years ago

4 0

Answer:

12/30 = 40%

Step-by-step explanation:

12 divided by 30 = 40%

Give me a brainleist please

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tensa zangetsu [6.8K]

Answer:

$y=4\sqrt{3}\ units$

Step-by-step explanation:

Triangle MRN is created by folding an equilateral triangle by half. Since triangle MRN is right triangle, the equilateral triangle must be folded along the height drawn to one side.

In equilateral triangle with side length of a units, the height is $\dfrac{a\sqrt{3}}{2}\ units$ and the height is greater than half the side because

$\dfrac{a\sqrt{3}}{2}>\dfrac{a}{2}.$

The leg with length x units has the smaller projection (2 units long) than the leg with length y units has (6 units long).

This means the leg with length y units is the height of the equilateral triangle. If the leg with length y units is the height of the equilateral triangle, then the hypotenuse MN = 8 units is the side of the equilateral triangle and lex with length x units is half the side, so x = 4 units.

By the Pythagorean theorem,

$y^2=8^2-4^2\\ \\y^2=64-16\\ \\y^2=48\\ \\y=4\sqrt{3}\ units$