Answer:
+or-6
Step-by-step explanation:
This is a trick question. The answer would be the first choice since you're multiplying -6 by +or-6, meaning that it could still end up as a negative or a positive.
Answer: b
Step-by-step explanation:
The constant is .o5 and that would be it all the time
Answer:
Point estimate is 16 and Margin of error is 9
Step-by-step explanation:
The point estimate is given by the following formula:
Point estimate = (Lower Bound + Upper Bound) / 2
Replacing we have:
Point estimate = (7 + 25) / 2 = 32/2
Point estimate = 16
Now, the margin of error is given by the following equation:
Margin of error = (Upper Bound - Lower Bound) / 2
Margin of error = (25 -7) / 2 = 18/2
Margin of error = 9
Answer: There are 13³/₄ quarts of lemonade.
In decimal form, that is 13.75 quarts.
Step-by-step explanation:
Multiply 7 1/2 times 1 5/6
It may be good to change the mixed numbers to improper fractions:
7¹/₂ becomes 15/2 and 1⁵/₆ becomes 11/6
15/2 × 11/6 = 165/12
Changing that back to a mixed number involves dividing
165÷12 = 13 with a remainder of 9.
Make a fraction of the remainder as the numerator and 12 as the denominator. 9/12.
Then simplify: 9/12 = 3/4
Assemble the mixed number: 13³/₄
<em>Another way is to change the fractions to decimals and calculate:</em>
<em>7.5 × 1.833 = 13.7475. Round to 13.75 and change back to a fraction if required.</em>
