Answer: the picture is not correct with the answer
Step-by-step explanation:
<span>3 times the sum of b and f can also be written as </span>
Answer:
See explanation
Step-by-step explanation:
1. 15x+3m. 15 represents the fee per ride, x, and 3 gets added to the total cost depending on how many miles, m, you go.
Everytime you see per, that usually means "some value times a variable"
2. 17 miles would cost 66. 15(1)+3(17)= 15+ 51= 66.
3. 10 miles, because 15(1 ride)+3(10 miles)= 45 dollars.
I tried
Answer:
you are correct with -0.0081
Step-by-step explanation:
but if you are multiplying a negative times a positive it is a negative always. So you do a negative times a negative you get a positive. Then you multiply the positive with a negative to get a negative then you do the negative times a negative to get a negative.
Given:
A solution of 60% fertilizer is to be mixed with a solution of 21% fertilizer to form 234 liters of a 43% solution.
To find:
The quantity of the 60% solution in the mixture.
Solution:
Let x be the quantity of the 60% solution and y be the quantity of the 21% solution.
Quantity of mixture is 234. So,

...(i)
The mixture has 43% fertilizer. So,

Multiply both sides by 100.
...(ii)
Using (i) and (ii), we get




Divide both sides by -39.


Putting this value in (i), we get


Therefore, 132 liters of the 60% solution must be used.