Kate is 5 years younger than her sister. In 4 years Kate will be five times older than she is now. How old is Kate's sister now?
Answers
Answered by
1
Let S= sisters age now, K= Kate’s age now
Kate is 5 years younger than her sister —-> K = S - 5 Kate’s age is her sisters age minus 5 years.
In 4 years, Kate will be five times older than she is now —-> K+4 = 5K in 4 years Kate’s age will be K+4, and that will equal 5 times her age.
We can solve the 2nd equation by subtracting K from both sides and then dividing by 4 to get: 4 = 4K —-> K=1, so Kate’s age is 1.
We can then plug in 1 for K on the 1st equation to get: 1 = S - 5 —-> 6 = S. So her sisters age is 6 right now, and that is the answer.
hope it helps
mark the brainliest
Answered by
1
Answer:
Step-by-step explanation:
Attachments:
Similar questions