Maggie's brother is 5 years younger than twice her age. the sum of their ages is 13. how old is maggie?

6 years

Step-by-step explanation:

We are given that Maggie's brother is 5 years younger than twice her age.

Sum of their ages=13

We have to find the age of old Maggie.

Let Maggie's age =x years

Maggie's brother age=2x-5

Sum of ages=13

Hence, Maggie's age=6 years

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;