bobbyrod4522
02.07.2019 •
Mathematics
Explain all work and will get brainiest 1. which ordered pair is a solution of the equation y = −11x + 4? a. (0, -7) b. (-1, -7) c. (1, -7) d. (2, 26) 2. a plumber charges $65 per hour to fix a leak. what is an equation that relates the total cost of a leak repair c to the number of hours, h, it takes the plumber to fix the leak? 3. solve for x: 3(2 − 5) = 4 + 33 4. solve for x (literal equations): c = b – bx
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Ответ:
2) c = 65h
In this equation, c represents the total cost. 65 is the price charged per hour to fix a leak. So, if I were to say it took a plumber two hours to fix a leak then my equation would be:
c = 65(2)
c = 130
Thus, the cost is $130.
3) The problem says solve for x, however, I don't see the input of x anywhere.
4) c = b - bx
c = b(1-x)
c/b = 1 - x
c/b - 1 = -x
-c/b + 1 = x
This equation is read as: negative c over b plus 1 equals x
Ответ:
14.50
Step-by-step explanation: