Answer: $77.40
Step-by-step explanation:
First you take the 7.5% and turn it into a decimal and to do that you have to divide 7.5 by 100 which gives you .075. You then multiply 72 by .075 to know how much money you will pay with tax and you get $5.40. then you add $5.40 to $72 to get the total coast of the battery, which is $77.40.
The total cost of the battery was $77.40.
Answer:
5/6 is equivalent to 10/12
Step-by-step explanation:
Hope this helped :)
Answer:

Step-by-step explanation:

This equation shows the income obtained based on the number of boats sold. We want to know the minimum number of boats that must be sold to obtain $ 75 000.
Then we must equalize the equation to 75 000 and clear b.
3 solutions will be obtained (because it is a polynomial of degree 3), and the lowest value will be taken.


Now we need to solve the equation, for that we seek to factor the polynomial

we divide the equation by -25
We take common factor b
We take out common factor (b-30)
Finally the solutions are:

b = 10 and b = -10
We take the least positive solution (because you can not produce -10 boats)
Finally b = 10
The smallest number of boats that must be produced to make a profit of $ 75,000 is 10 boats.
Answer:
b = 161, m = 111
Step-by-step explanation:
b + m = 272
m + 50 = b
Substitute
m + 50 + m = 272
2m = 222
m = 111
Plug in for m
b + 111 = 272
b = 161
Answer: x=1
Step-by-step explanation: