In a club, the ratio of the number of girls to the number of boys is 3 : 1 The ratio of girls that play a musical instrument to girls that don't is 3 : 2.
The ratio of boys that play a musical instrument to boys that don't is 4: 1.
What fraction of the children play a musical instrument?
Give your answer in its simplest from.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

what is

step-by-step explanation:

answer: the answer is fre sha voca do

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