Answer:
x=1
Step-by-step explanation:
2x+6x-x=7
7x=7
x=1
...............
Elga's age is 50, and Alvin's age is 56. So, the sum of their ages is 106.
Answer:
We conclude that a researcher used simple random sample.
Step-by-step explanation:
We know that select a sample of five children from a class of 30, a researcher puts each child’s name on a slip of paper, then shuffles the papers in a hat and randomly picks five names.
We conclude that a researcher used simple random sample.
Because every children has an equal chance of being included in the sample.
53/3
we can't divide this term perfectly because 53 is not 3's double number.
No, 2750 is a sadly unreasonable estimate. 917 is almost 1,000 . 33 times as much is around 30,000 . 2,750 is less than 3,000 .
Step-by-step explanation:
so it will be 3,0261
