Re-write this question to make it a statistical question: How old am I?

Mathematics

1 answer:

ale4655 [162]3 years ago

8 0

Answer:

How many years has it been ever since I was born?

Step-by-step explanation:

Definition of a statistical question :

A statistical question is one that can be answered by collecting data and where there will be variability in that data. This is different from a question that anticipates a deterministic answer. For example, "How many minutes do 6th grade students typically spend on homework each week?" is a statistical question.

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Rehman invests his summer earnings of $3050. He invests past of the money at 8%/year, and the rest at 7.5%/year. After 1 year, t

sertanlavr [38]

Answer:

let he invest x part of earning at the rate of 8%

simple interest = P*T*R/100 = x*1*8/100 = 0.08x

His invest at the rate of 7.5% = 3050 - x

Again simple interest = P*T*R/100 = (3050 - x)*1*7.5/100 = 228.75 - 0.075x

N0w acc0rding to question

0.08x + 228.75 - 0.075x = 242

0.005x= 13.25

x = 2650