Answer:
Total price = 240
Step-by-step explanation:
a microwave cost = 200
20% of 200 = 20/100 x 200 = 40
total price = 200 plus 20% VAT = 200 + 40 = 240
No.
A scalene triangle is one with no sides equal.
An equilateral is one with the three sides equal.
So a scalene triangle can not be equilateral.
The last one: x/2=45; x = 90
the problem says: half of a number is 45.
let's use x to represent this number
we know that dividing by 2 halves a number, so, x/2 = 45
to get x alone, we multiply 2 by 2 to cancel it out. so, multiply by 2 on both sides
x/2 • 2 = 45 • 2
x = 90
hope this helped!
Answer: Option D
D. $108
Step-by-step explanation:
We must calculate the expected cost per patient to use treatment method B.
The expected cost for a discrete random variable x is:
Where 
is the cost associated with the probability 
In this case, the random variable x is represented by the cost of each treatment.
For treatment B there is a possibility that antibiotic 2 works, in that case the cost x would be $ 100 and 
There is also the possibility that it does not work, in this case the cost x would be $180 and the probability 
The expected cost is:
Answer:
5=NxC divided by 1/4 ( don't have division sign on computer)
Step-by-step explanation:
First we now that it will start with 5=, because it says "5 is..." then we see that we have to multiply the number by c, sense it just says "...a number c" without an action so we assume its multiplication. Finally we divide NxC by 1/4 to fine one fourth of a number c, which equals five.
