Tom has 18 tiger-eye marbles and
shannon has 15 agate marbles. what
is the ratio of shannon's marbles to
tom's marbles?

ANSWER:

Ratio of number of marbles with Shannon to number of marbles with tom is 5 : 6

SOLUTION:  

Given that,  

Tom has 18 tiger-eye marbles,

Shannon has 15 agate marbles

Ratio of Shannon's marbles to Tom's marbles = ?

Now, number of marbles with Shannon = 15

And number of marbles with tom = 18

So, ratio of Shannon's marbles to Tom's marbles =

Cancel by 3 in numerator and denominator, we get

The fraction can be written in ratio as = 5 : 6

Hence, the ratio proportion is number of marbles with Shannon to number of marbles with tom is 5 : 6

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours