Answer:
The first mechanic worked for 20 hours and the second mechanic worked for 5 hours
Step-by-step explanation:
Let f be the number of working hours of first mechanic
Let s be the number of working hours of second mechanic
Given that they both worked for a combined total of 25 hours
⇒f + s = 25 → equation 1
First mechanic charged $95 per hour and second mechanic charged $90 per hour and they both together charged $2350
⇒95f + 90s = 2350 → equation 2
Using equation 1 in equation 2:
95f + 90(25-f) = 2350
⇒95f + 2250 - 90f = 2350
⇒5f = 100
or f = 20 hours
⇒s = 25 - f ⇒ s = 5 hours
<u>The first mechanic worked for 20 hours and the second mechanic worked for 5 hours</u>
Answer:
After solving we get
Step-by-step explanation:
We need to solve the equation:
Solving:
Multiply 4x with terms inside the bracket
We need to solve above equation to find value of x
Using quadratic formula for finding value of x:
We have a=180, b=-28 and c=-57
Values of x are
So, After solving we get
Answer:
−
3
(
1
+
4
)
=
3
3
Step-by-step explanation:
Answer:
The answer is 2.888888888888888888889
Step-by-step explanation:
You divide the chapters by the hours because you're trying to figure out how many chapters he read in one hour, not 3 3/8. Hope that helped :)
You go to the y axis and go to +5, then the slope is the number in from if x. it has a one in front and under it so 1/1. Which mean up one over one. you go to the +(0,5) first point, on the line go up +1 and over to the right +1. that's your second point. (1,6) is your second point