4 products are being purchased.
Step-by-step explanation:
Given,
Time taken to select each product = 5 seconds
Time taken to complete check out process = 60 seconds
Total time taken for a transaction = 80 seconds
Let,
x be the number of products purchased.
Time taken for each product*Number of product + Time for check out process = total process
![5x+60=80\\5x=80-60\\5x=20](https://tex.z-dn.net/?f=5x%2B60%3D80%5C%5C5x%3D80-60%5C%5C5x%3D20)
Dividing both sides by 5
![\frac{5x}{5}=\frac{20}{5}\\x=4](https://tex.z-dn.net/?f=%5Cfrac%7B5x%7D%7B5%7D%3D%5Cfrac%7B20%7D%7B5%7D%5C%5Cx%3D4)
4 products are being purchased.
Keywords: variable, division
Learn more about division at:
#LearnwithBrainly
Answer:
She should have multiplied by 4, not divided
Step-by-step explanation:
Given
- 11 = 13 ( add 11 to both sides ) ← correct
= 24 ( multiply both sides by 4 to clear the fraction )
H = 4 × 24 = 96
H is divided by 4, thus the inverse operation is to multiply