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lara31 [8.8K]
3 years ago
6

In a group of 20 students 25% wear glasses how many do not wear glasses?

Mathematics
2 answers:
zlopas [31]3 years ago
7 0

Answer:

15

Step-by-step explanation:

25 percent of 20 is 5, and 20-5 equals 15.

cluponka [151]3 years ago
4 0

In a group of 20 students, 15 do not wear glasses.

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ANSWER PLZZ ASAP!!!
ohaa [14]

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B

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Choose all that correctly solve for x.
Tamiku [17]

Answer:

Options: A, B, and C correctly solve for x.

Step-by-step explanation:

A).

\frac{5}{2} x = \frac{15}{2}

Multiplying both sides by 2 gives;

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8 0
3 years ago
A brace for a shelf has the shape of a right triangle. Its hypotenuse is 10 inches long and the two legs are equal in length. Ho
vagabundo [1.1K]
This is a classic example of a 45-45-90 triangle: it's a right triangle (one angle of 90) & two other sides of the same length, which means two angles of the same length (and 45 is the only number that will work). With a 45-45-90 triangle, the lengths of the legs are easy to determine:
45-45-90
1-1-sqrt2
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Now, your hypotenuse is 10.
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(10•sqrt2)/(sqrt2•sqrt2)
This can be rewritten:
10sqrt2/sqrt(2•2)
=10sqrt2/sqrt4
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3 0
3 years ago
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Gala2k [10]

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