Answer:
19/35
Step-by-step explanation:
Since 75% = 3/4
then $15 = 3/4 of the original price
Divide 15 ÷ 3 to get the 25% of the original price
(1/4 of the price)
15 ÷ 3 = 5
$5 is the 25% of the original price
so, if 25% + 75% = 100%
then $5 + $15 = $20
The original price for the sweaters was $20.
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Answer:
The estimate for the proportion of Americans over 33 who smoke is 0.28.
Step-by-step explanation:
Proportion of Americans over 33 who smoke.
Number who smoke divided by the size of the sample.
In this question:
Sample of 1267.
913 don't smoke, so 1267 - 913 = 354 smoke. Then
The estimate for the proportion of Americans over 33 who smoke is 0.28.
Answer:
n = 20
Step-by-step explanation:
2n − 35 = 5
find: n
2n = 5 + 35
n = 40 / 2
n = 20
Answer: 91
Step-by-step explanation:
the equation to find the area of a trapezoid is as follows:
A = (a+b)/2h
So A = 6+20 which is 26
then you divide 26 by two which gives you 13, then multiply by 7
