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شائع Word Problems >

Joanne is 3 years older than Amy. Three times Joanne’s age is 15 years more than twice Amy’s age. How old are Joanne and Amy?

الحلّ

J o ann e i s 3 ye a rs o l d er t han A m y . T h ree t im es J o ann e ’ s a g e i s 15 ye a rs m ore t han tw i ce A m y ’ s a g e . Ho w o l d a re J o ann e an d A m y ?

الحلّ

Joanne^{'} s age is : 9

Amy^{'} s age is : 6

خطوات الحلّ

Translate the problem into an equation:

3 x = 15 + 2 (x - 3)

3 x = 15 + 2 (x - 3), x

حلّ لـ:

x = 9

age جد

Joanne^{'} s age is : 9

Amy^{'} s age is : 6

أمثلة شائعة

Write and solve a proportion to: 30% of what number is 9 the sum of two numbers is 68. the larger number is 16 more than the smaller number. What are the numbers?One number exceeds another number by 5 and the product of the two numbers is 126. Find the numbers.Serenity invested 3,100 in an account paying an interest rate of 2.9% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest dollar, would be in the account after 12 years?One third of the square root of a number x is equal to 12. What is the value of x?