Write a ratio for the situation in three ways, comparing the first quantity to the second quantity. In Largo City, about one in
every nine homes contains four televisions.
1 answer:
Answer:
Step-by-step explanation:
1/9
(1*4) / (9*4) = 4/36
(1*4) / (9*4) = 5/45
The first one is the ratio as it is stated in the problem.
The second one multiplies top and bottom by 4
The third one multiplies top and bottom of the top ratio by 5.
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Answer:
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Step-by-step explanation:
Answer:
$356
Step-by-step explanation:
So if they are 400 students we need to:
0.89*400=$356
Answer and Step-by-step explanation:
a)
expected value for the difference in sample means=3.5-3.2=0.3
b)
standard deviation of the sampling distribution of the difference in sample means
=sqrt((0.5^2/40)+(0.8^2/40))
=0.1492
c)
z=(0.3-0)/0.1492
z=2.01
P(z>2.01)=0.0222
Answer:
C. 80
Step-by-step explanation:
5x10x.5=25
25x2=50
3x10=30
50+30=80
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