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인기 있는 Word Problems >

3 Kagiso and Tshepang are brothers. Kagiso's age is 3times Tshepang's age.:In 6 years' time Kagiso's age will be twice Tshepang's age. Calculate the present:age of Kagiso (The elder brother)

해법

3 K a g i so an d T s h e p an g a re b ro t h ers . K a g i s o^{'} s a g e i s 3 t im es T s h e p an g^{'} s a g e . : I n 6 ye a r s^{'} t im e K a g i s o^{'} s a g e w i ll b e tw i ce T s h e p an g^{'} s a g e . C a l c u l a t e t h e p rese n t : a g e o f K a g i so (T h e e l d er b ro t h er)

해법

Kagiso^{'} s age is : 18

솔루션 단계

Translate the problem into an equation:

3 x + 6 = 2 (x + 6)

x

해결 대상

, 3 x + 6 = 2 (x + 6) : x = 6

Kagiso's age 찾다 :

18

Kagiso^{'} s age is : 18

인기 있는 예

the sum of a number and twice its square is 6 62% of what number is 186 the sum of the squares of two consecutive integers is sixty-one Suppose you deposit \$1500 in a savings account that pays interest at a annual rate of 6%. No money is added or withdrawn from the account. How much will be in the account after 5 years Find number whose logarithm is 1.3247