Answer : A
Take square root for each term and simplify it
so we will get
Perry is buying an I phone that is a sale for 40% off the original price.after he uses a $25 gift card.the total cost before tax
1 answer:
Answer:
$599
Step-by-step explanation:
Given: Discount- 40% off on original price.
Gift card= $25
Total cost before taxes is $334.40
Lets assume the original price be "x".
We know there is 40% on original price and Perry uses $25 gift card.
Remember; Total cost=
Now, finding the original price of Iphone.
⇒
⇒
Adding both side by 25
⇒
⇒
Dividing both side by 0.60
⇒
∴
Hence, the original price of iphone is $599
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Answer:
Probability that a house has a hot tub given that it has a pool is 55%.
Step-by-step explanation:
We are given that in New York State, 38% of the houses have a pool and 21% of the houses have both a pool and a hot tub.
Let the probability that houses have a pool = P(A) = 0.38
Also, let B = event that houses have a hot tub
Probability that houses have both a pool and a hot tub = = 0.21
Now, the conditional probability that a house has a hot tub given that it has a pool is given by = P(B / A)
<u>As we know that</u>; P(B / A) =
=
= 0.553 ≈ 55%
Hence, the probability that a house has a hot tub given that it has a pool is 55%.
I'm assuming that you mean
because if you meant
then u would simplify and you couldn't make it the subject.
Under this assumption, we start with
We multiply both sides by
We expand the left hand side:
We move all terms involving u to the left and all terms not involving u to the right:
We factor u on the left hand side:
We divide both sides by