Answer:
12 hours
Step-by-step explanation:
Step one:
given data
base fee= $60
charge per hour= $15
let the number of hours the plumber work be x
the linear function for the charge is the equation of line.
that is y=mx+c
Step two:
given that y=$240
240=15x+60
240-60=15x
180=15x
divide both sides by 15 we have
x=180/15
x=12
<u>The number of hours is 12</u>
4r+5=3r can also be written
4r=3r-5
1r=-5
Answer:
The standard enthalpy of formation is the energy that would be involved if one mole of the substance were to be formed from its elements that were at standard conditions of temperature and pressure which are 25 degrees C and one atm pressure.
Step-by-step explanation:
Answer:
He is 82 percent done
Step-by-step explanation:
by multiplying 18 laps by 50 yards we have to total distance of 900 yards
so using the equation (738/900) * 100 we get 82
If we factorize the expression
We will get
Hope I helped!
