18*35 - number of the students at school.
x- is a number of classes if it is going to be 30 students per class, then
30x - number of the students at school.
So,
18*35 = 30x
x=(18*35)/30 = 21 classes should be if it is going to be 30 students per class.
21 - 18 = 3 new classes must be formed.
The correct option is third.
This question is essentially asking if the ratios of number 5:6 = 3:4
if we want to check, we can do cross multiplication.
So we are trying to find out if 5(4) = 3(6).
5(4) = 20 and 3(6) = 18.
so,
The correct option is third.
- No, because the numbers in the given ratio must be multiplied by the same number.
learn more about ratios of numbers here:
brainly.com/question/17571940
#SPJ1
The triangle has sides "a", "b" and "c", where side a = side b and the hypotenuse (side "c") equals side "a" or "b" times the square root of 2.
Prism volume = triangle area * height
342.1 = triangle area * 13.2
triangle area = 342.1 / 13.2
<span><span><span>triangle area = 25.9166666667
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area of a triangle is (1/2) base * height
In a 45 45 90 triangle, the base = height and since we don't know either the base or the height we'll call both "x".
So triangle area = (1/2) * x^2
<span>25.9166666667 = (1/2) * x^2
x^2 = </span><span>51.8333333334
x ( the base and the height) = </span><span><span><span>7.1995370222
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the hypotenuse of a 45 45 90 triangle = leg * square root (2) =
hypotenuse = <span>7.1995370222 * sq root (2)
</span><span><span><span>hypotenuse = 10.1816828995
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So, one of the legs = <span><span>7.1995370222
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Source:
http://www.1728.org/triprism.htm
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15x-10=10 6+2X is what I got from what u typed