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شائع Word Problems >

Calvin is 8 years older than Justin. In 5 years, Calvin will be twice Justin's age. How old are they today?

الحلّ

C a l v in i s 8 ye a rs o l d er t han J u s t in . I n 5 ye a rs, C a l v in w i ll b e tw i ce J u s t i n^{'} s a g e . Ho w o l d a re t h ey t o d a y ?

الحلّ

Calvin^{'} s age is : 11

Justin^{'} s age is : 3

خطوات الحلّ

Translate the problem into an equation:

x + 5 = 2 (x - 8 + 5)

x + 5 = 2 (x - 8 + 5), x

حلّ لـ:

x = 11

age جد

Calvin^{'} s age is : 11

Justin^{'} s age is : 3

أمثلة شائعة

4500 dollars is placed in an account with an annual interest rate of 7%. To the nearest tenth of a year, how long will it take for the account value to reach 10800 dollars?A poker hand consisting of 4 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactly 3 face cards.Round your answer to 4 decimal places as needed.the product of a number and ten is six Jenna opened a savings account and deposited 710.00. The account earns 13.06% interest, compounded annually. If she wants to use the money to buy a new bicycle in 3 years, how much will she be able to spend on the bike?Harper invested 3,200 in an account paying an interest rate of 7% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest ten dollars, would be in the account after 6 years?