Catherine selected a random sample of 500 families, out of a possible 35,000 families. Because the population is large, her sample size should have also been a little bit larger than 500. In this case, the correct answers are A and D, because selecting more families to sample would have represented the population better.
The answer is “122“ 180-58 = 122
Answer:
33.6 x 3.1 = 104.16
Step-by-step explanation:
To multiply decimals, first multiply as if there is no decimal. Next, count the number of digits after the decimal in each factor. Finally, put the same number of digits behind the decimal in the product.
Alright, so first we'll have to get y on the other side
So
2x+y=-9
-y -y
+9 +9
2x+9=-y
Then divide is all by -1 so y is positive
-2x-9=y
