True
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Answer:
$97.75
Step-by-step explanation:
since its 15% off, the price would be 85% of its original price.
85/100 x $115 = $97.75
Answer:
y=25x-5
Step-by-step explanation:
y=mx+b
the 25=m and the constant would be 5. However its a negative five because your losing -5 every hour.
Make me brainliest pls
Answer:
A
Step-by-step explanation:
An equation in the form y=kx represents something increasing at a constant <u>rate</u>
Answer:
And rounded up we have that n=748
Step-by-step explanation:
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by and . And the critical value would be given by:
The margin of error for the proportion interval is given by this formula:
(a)
And on this case we have that and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The best estimatr for the proportionis 0.5 since we don't have any other info provided. And replacing into equation (b) the values from part a we got:
And rounded up we have that n=748