Respuesta :
Answer:
She purchased 4 pencils
Step-by-step explanation:
Here, we are to calculate the number of pencils bought given the information in the question.
The amount per pencil is $0.91. The total amount of this since she bought x number of pencils is $0.91 * x = $0.91x
Now, after paying $10, she was given $6.36 as change
what this means is that what the pencils cost is 10-6.36 = $3.64
Now we equate the cost in terms of x to this;
0.91x = 3.64
x = 3.64/0.91
x = 4 pencils
Answer: 4 pencils
Step-by-step explanation:
From the question, Kacie bought x, number of pencils. She paid $0.91, including tax, for a pencil and gave the cashier $10 and received $6.36 back in change.
Let the number of pencils bought be x.
Since she paid $0.91 per pencil, and gave the cashier $10 and collected $6.36 as change, this will be:
10 - 0.91x = 6.36
Collect like terms
0.91x = 10 - 6.36
0.91x = 3.64
x = 3.64/0.91
x = 4
She bought 4 pencils
