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Veseljchak [2.6K]
2 years ago
5

An education center offers a total of 400 math, physics and

Mathematics
1 answer:
mihalych1998 [28]2 years ago
3 0

Answer: 30

Step-by-step explanation:

3+4+3=10 400/10=40 so each has 40 so math has 120 120*25=3000 for physics is 4*40 so 160 160*20=3200 9800-3000-3200=3600 3*40=120 3600/120=30

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tigry1 [53]
It is an irrational number.

Irrational numbers can be written as a decimal but not a fraction. It has an endless non-repeating digits to the right of the decimal point.

Rational numbers are those that can be written as a ratio. Meaning it can be written as a fraction where both numerator and denominator are whole numbers.
3 0
3 years ago
Read 2 more answers
In JKL, mJ = 90, mK = 30, and mL = 60. Which of the following statements about JKL are true?
kumpel [21]

The <em><u>correct answers</u></em> are:

KL = 2*JL; JK = (√3)JL; and JK = ((√3)/2)KL

Explanation:

This is a 30-60-90 right triangle.  This type of triangle has a special relationship among the sides.  Let the smallest side, across from the 30° angle, be t.  This means JL = t.

The hypotenuse of the triangle is two times the length of the smallest side; this means that KL = 2t, which means that KL = 2*JL.

The side of the triangle opposite the 60° angle will be the "medium sized" side; it is equal to √3 times the smallest side, or √3t; this gives us that JK = √3t = (√3)JL.

Comparing JK to KL, we have

\frac{t\sqrt{3}}{2t}

The t on top and bottom cancel out, leaving us with the ratio (√3)/2.  This means that JK = ((√3)/2)KL.

8 0
3 years ago
Read 2 more answers
An artist uses 18 colors on an art palette to paint a picture. This is 72% of all the colors on the palette. How many colors are
brilliants [131]

Answer:

He actually has 25 paints.

Step-by-step explanation:

This is because you take 18x100(100 is the total % under 72 because 72 is out of 100) that equals 1800. then, you take 1800 and divide it by 72. That is because 72 is the actual number that we already have. You would get 25 after dividing. hope this helps:)

3 0
3 years ago
Read 2 more answers
How would you answer this question? thanks
Bogdan [553]

Answer:

What is the question so we can answer

6 0
2 years ago
If f(x) = 3x + 2, what is f(5)?
Andrei [34K]

Answer:

f(5) = 17

Step-by-step explanation:

You just plug in 5 for x:

f(5) = 3(5) + 2

f(5) = 15 +2

f(5) = 17

Hope this helps!

5 0
3 years ago
Read 2 more answers
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