Kim is 5 years older than her brother Jack. If the sum of their ages is 21, find each of their ages.
1 answer:
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Answer:
Step-by-step explanation:
Let k represent Kim's age. Then Jack's age is k-5 and the total of their ages is ...
k + (k -5) = 21
2k = 26 . . . . . . . add 5, collect terms
k = 13 . . . . . . . . . divide by 2; Kim's age
k -5 = 8 . . . . . . . Jack's age
Kim is 13; Jack is 8.
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Answer:
x=78
Step-by-step explanation:
the sum of all angles in a triangle=180
180-59=129
y>x
70+59=129
180-129=51
129-51=78
x=78
Every rational expression can be written in infinitely many equvialent forms which is 3/3n-15/2.
7 1/2 is to the left of 17 2/3 on a number line because 7 1/2 is less then 17 2/3
