Answer:
14652
Step-by-step explanation:
The 15 lbs at $7=$105
So multiple 5x9 as a test and check results. 105-45=60
Here you can see that 60 is a factor of 6 by 10 so you got lucky and got the answer of 10lbs at $6 & 5lbs at $9=15 lbs at $7 average
Use bodmas/pemdas rule
4^3*(4)-5^0
64*4-1 anything to the power zero is one
256-1
255
Using proportions, it is found that the total cost of three bottles of detergent is of $11.55.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount.
A certain brand of laundry detergent is manufactured for $4.40 and then marked up 25% by the local store before selling, hence the price of each bottle is given by:
P = 4.40 x 1.25 = $5.50.
The store offers a 30% discount with the purchase of three or more bottles of the detergent, hence the total cost is given by:
T = (3 x 5.50) x 0.7 = $11.55.
More can be learned about proportions at brainly.com/question/24372153