in a class 60% of the students are girls. There are 18 girls in the class. How many students are in the class

Answers

Answer 1

Answer: 60 18
— = —
100 x

to solve the percent proportion :
100 x 18 = 1800
1800 ÷ 60 = 30
there are 30 students in the class.

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Sam is flying a kite. The length of the kite string is 80 meters, and it makes an angle of 75° with the ground. The height of the kite from the ground is meters.

Answers

Answer:

THE HEIGHT OF THE KITE FROM THE GROUND=80mtr

Step-by-step explanation:

let H be the height of kite from ground

$\sin\theta$ = $(height)/(hypotenuse)$

$\sin\90$ = $(H)/(80)$

1= $(H)/(80)$

H=80meters

Mr.smog just bought a big-screen tv set. The screen is 48 in. wide and 27 in. high. Find the lenghth of its diagonal

Answers

$Look\ at\ the\ picture.\n\nUse\ the\ Pythagorean\ theorem:\n\nd^2=48^2+27^2\n\nd^2=2304+729\n\nd^2=3033\n\nd=√(3033)\n\n\boxed{d\approx55\ (in)}$

Answer:

Step-by-step explanation:

Use the Pythagorean theorem

a^2 + b^2 = c^2

48^2 + 27^2 = (diagonal)^2

2304 +729 = (diagonal)^2

diagonal = 55 inches

What does it mean by this, Write an expression for: Seven hundred and two more

Answers

this means you ave to do an equation but without a equal sign. So this is going to be 700+2.
~JZ

Josie reads the same number of pages each day in her 200-page book.Which expression represents the number of days it takes to finish the book?

200 + p

p ÷ 200

200p

200 ÷ p

Answers

200/p because it depends on the days she read.

200÷P, as you need to to do the equivalent of 20-p-p-p... until you get to 0, which is faster and more simply done with division.

You have to solve this . Calculate the diameter of a human red blood cell is 0.000006 m. Write the diameter in scientific notation

Answers

Answer:

6 x 10 to the -6 power

Step-by-step explanation:

Moved the decimal to the right 6, since less than 0 its negative

This is VERY simple , but what is 4021.2386 simplified?

Answers

Hey There!

4021.2386 simplified is 4021.2, to simplify you must round decimal places.

Have A Brainly Day !

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