Researchers estimate that 15 out of every 25 customers at a store make purchases with a credit card. If the store has 600 custom
1 answer:
Answer:
360
Step-by-step explanation:
Number of customers who make purchases with a credit card
=15 out of every 25=
The fraction 3/5 represents the part of the customer that makes purchases with credit cards.
Therefore if there are 600 customers tomorrow, 3/5 of them will use a credit card.
360 credit card can be expected.
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To solve this problem you must apply the proccedure shown below:
1. You have the following points given in the problem above:
2. To find the midpoint, you must apply the formula that is used for calculate it. This is:
Where:
3. Now, you must substitute these values into the formula for calculate the midpoint, as following:
Therefore, the answer is:
Answer:
680700
Step-by-step explanation:
this method can calculate more quickly
Solution
Problem 1:
- Kelsie pays a one-time fee for the equipment of $5.00. This is a fixed cost that never changes and is paid just once.
- Kelsie pays $18.99 for each hour (h). This means that
For 1 hour, Kelsie pays $18.99 * 1 = $18.99
For 2 hours, Kelsie pays $18.99 * 2
For 3 hours, Kelsie pays $18.99 * 3
And so on...
- We can generalize this for h hours. That is,
For h hours, Kelsie pays $18.99 * h
- Thus, Kelsie pays $18.99h after h hours separate from the initial fee of $5.00.
- Thus, her total cost would be the addition of the flat fee of $5.00 and the cost of playing for h hours. That is:
Problem 2:
- Jayson pays $35 per hour with no initial flat fee.
- Following the same logic as in the case of Kelsie, we can write the total cost incurred by Jayson after h hours is:
Final Answer
The answers are:
Problem 1:
Problem 2: