Marty's class collected $30.00 in a school-wide penny collection contest. If Tommy's class added $6.00 to the amount they collected, x, and then multiplied the sum by 2, they would have the same amount of money as Marty's class.
will mark Brain*

X=9

Step-by-step explanation:

Martys class has 30 dollars

Tommy has (6+x)X2=30

30/2 is 15

15-6 is 9

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.