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

Formal letter to the editor complaining about the youth of today doesn’t have manners
3x + 8 = 2 (6x-11) - 5x
Pls helppppppppppppppppppp
All a user has to do is click print and the job will be sent to the printer.a.Trueb.False
Which is true about the colonization of South Africa? A. The British created the Union of South Africa by combining the lands they controlled in the region. B
What is the area of the composite shape. Use 3.14 for n and round to the nearest hundredth. Show all your work​
Which of the following could best be used to demonstrate energy being transformed from electricity to heat? f A gas oven g A triple beam balance h A magnifying
If he ...... the game with us , we will win . He is very clever. a:play b:has played c:played d:had played
4. Lupita tiene varios pentágonos y hexágonos de madera. Si en total sus piezas tienen 37 vértices, ¿cuántos hexágonos tiene? A) 2 C) 4 B) 3 D) 5 2​
Which term means shared in common?