Answer:
Step-olayyby-step explanation:
mechanic #1's rate = x
mechanic #2's rate = y
* Their rate is dollars per hour ($/hr)
mechanic #1 worked for 20 hours (hr × $/hr = $)
20x = money earned by mech#1
and mechanic #2 worked for 5 hours
5y = money earned by mech#2
together they charged a total of $1150. So the amount of money earned by both mechanics.
20x + 5y = 1150
the sum of the two rates was $95 per hour.
x + y = 95
which means
x = 95 - y
plug (95 - y) in for "x" in the other equation to get everything in terms of one variable.
20(95 - y) + 5y = 1150
solve for y
1900 - 20y + 5y = 1150
1900 - 15y = 1150
-15y = 1150 - 1900
-15y = -750
y = -750/-15
y = 50 $/hr
Now use this to solve for x
x + y = 95
x + 50 = 95
x = 95 - 50
x = 45 $/hr
mech#1 charged 45$/hr
mech #2 charged 50$/hr
Answer:
Step-by-step explanation:
Given
The length of the rectangular prism is
width of the rectangular prism is
height of the rectangular prism is
The surface area of the rectangular prism is
Put the values
The surface area of the rectangular prism is
Answer:
0.111111…
Step-by-step explanation:
In the problem described, we understand that 1 in 9 friends prefer kiwi.
That's the equivalent of which is equal to
Please let me know if you have any questions in the comments.
Have fun studying! :)
Solution:
1) Switch +10 to -10 and subtract -10 in each side.
Example:
43-10= 33
2) You will be left with
3) Divide
4) Your final answer is -11
So, d = -11