mona360
mona360 mona360
  • 03-09-2018
  • Mathematics
contestada

how do you solve this?

how do you solve this class=

Respuesta :

TheBreeze
TheBreeze TheBreeze
  • 03-09-2018

a) C = 40 + 30t

b) 280 = 40 + 30t

30t = 240

t = 8

The plumber worked 8 hours

Answer Link
churchkeys88 churchkeys88
  • 03-09-2018
C is equal to (30 x t) + 40
C = 30t + 40
we are given that C = 240
280=30t + 40
solve for t
t = 8 hrs
Answer Link

Otras preguntas

What did Joaquín learn from Pilar?
Examine the system of equations. y = –3x – 2, y = 7 The value of x is . The solution to this system of equations is .
Which sequence of transformations proves that shape 1 is similar to shape 2
mrs.pappert left her house a quater past 7:00. At what time did she leave her house
“Of course voting is useful. But then again, I don't put a big glow to it. Voting is about as essential as washing yourself. It's something you're supposed to d
If a solution conducts electricity, it it positive evidence that
Which sequence of transformations proves that shape 1 is similar to shape 2
Carl tells his friend Logan about a new music download service. Carl says that if you download x collections per month, your monthly cost will be 2(x + 10). Log
Stevens family traveled 240 miles in 4 hours. What was there average speed in miles per hour?
Most of the day on the Camino is spent ___________________.