There are 14 boys and 12 girls in mateo's homework class. which ratio correctly describes the students in the class?
a) the ratio of boys to girls is 7: 6
b) the ratio of girls to boys is 6: 8
c) the ratio of boys to all students is 14: 28
d) the ratio of girls to all students is 6: 7

A should be the best answer to this problem

Step-by-step explanation:

The ratio of boys to girls is 7:6

Step-by-step explanation:

1/2 of 14 is 7. So the boys would be equal to 7. 1/2 of 12 is 6.

So the girls would be equal to 6. If you put that in a ratio it would be 7(boys):6(girls) = 7:6

Therefore your answer is A: The ratio of boys to girls is 7:6

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2

step-by-step explanation:

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.