If the sum of a number and six is tripled, the result is eight less than twice the number. Find the number.
1 answer:
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Answer: 1. A. y=17x
2. $59.50
Step-by-step explanation:
1. In the table , it can be seen that as x increases y increases with the proportionality constant k = ,.
Equation of direct variation between x and y :
Put k= 17 , we get
, which is the required equation.
So correct option is "A".
2. To find : The charge for renting a machine for 3.5 hours.
Put x= 3.5 in above equation , we get
Hence, the charge for renting a machine for 3.5 hours is $59.50.
So correct option is "B".
Answer:
The percentage of customers who buy an extended warranty is 33%.
Step-by-step explanation:
In this problem, we have these following percentages.
35% of the customers select the basic camera.
This also means that:
65% of the customers select the deluxe version. (Since you can buy only two versions of the hard disk camera and the sum of the percentages is 100%).
20% of those who select the basic camera also purchase the extended warranty.
40% of those who select the deluxe version also purchase the extended warranty.
What is the percentage of customers who buy an extened warranty?
is the percentage of those who buy the basic version with the extended warranty. So it is 20% of 35%. So
is the percentage of those who buy the deluxe version with the extended warranty. So it is 40% of 65%. So
The percentage of customers who buy an extended warranty is 33%.