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

Identify the like terms. 9x, 10y, –9y,  10   A. 9x and 10
which number is 100 less than 38 tens
one way that animals adapt to seasonal change
A ball is thrown into the air with an upward velocity of 44 ft/s. Its height h in feet after t seconds is given by the function [tex]h=-16t ^{2} +44t+9[/tex]. W
type the requested verb form of this verb. future progressive tense: soar
A ball is thrown into the air with an upward velocity of 44 ft/s. Its height h in feet after t seconds is given by the function [tex]h=-16t ^{2} +44t+9[/tex]. W
Rmshot bought a 3.5oz chocolate bar.within 15minutes he had eaten 0.6 of the bar. How many ounces did he eat?
What is/was the American dream? I need at least 10 bullet points about what the American dream was please somebody help me
Which of the following is most important in classifying two groups of bears into the same genus? A. similar diets B. similar genes C. similar habitat D. similar
Which decimal is equivalent to 13/20?