3 years ago

Please answer with steps!

Mathematics

1 answer:

Dafna1 [17]3 years ago

4 0

Answer:

Add 5.2 to each side of the equation

Step-by-step explanation:

4.2y-5.2+5.2=18.5+5.2

4.2y=23.7 (then divide by 4.2)

y=5.64

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In one school, half of all students who like math like science as well. Also, in that school, a third of all students who like s

Nimfa-mama [501]

Answer:

2/3

Step-by-step explanation:

If we have 'x' students who like math and 'y' students that like science, we can formulate that:

Half of x likes math and science, and also one third of y likes math and science, so:

(1/2) * x = (1/3) * y

x / y = (1/3) / (1/2)

x / y = (1/3) * 2 = 2/3

So the ratio of the number of students who like math to the number of students who like science is 2/3

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3 years ago

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Angle 1 is vertical to Angle 2. Angle 1 =94, Angle 2 = 2(x-13), Find the value of x.

rodikova [14]

Answer:

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Step-by-step explanation:

86+94= 180 which if supplementary angles have to equal 180°

I don't know if you can tell but what's in red means distribute

then I added 26 on both sides with like terms

on the left side 86+26=112 and right side is left with 2x

then divide both sides by 2 to leave x by itself

112/2= 56 and 2x/2=x

so 56=x

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2 years ago

Which number is a solution of the inequality? 6 â‰¥ 6k?

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This isnt a inequality

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How to solve r-9≤-25

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Answer:

Step-by-step explanation:

That’s the answer (the pic)

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Evaluate the integral i. i = int_0^(pi/2) ( 3 (sin(t))^2 cos(t)i + 6 sin(t)(cos(t))^5j + 4 sin(t)cos(t)k )dt

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See, please, the suggested option.
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