Answer:
The answer to your question is diameter = 19.7 in
Step-by-step explanation:
Data
Circumference = 62 in
diameter = ?
Process
1.- Write the formula of Circumference, remember that circumference = perimeter.
Perimeter = 2πr
2.- Equal the equation to the value given
2πr = 62
-Solve it for r
r = 62/2(3.14)
-Result
r = 62/6.28
r = 9.87 in
3.- Find the diameter
diameter = 2r
diameter = 2(9.87)
diameter = 19.7 in
Alright, lets get started.
Suppose first mechanic charges= x
So, second mechanic charges will be = 
(because total of their rates was 125)
first mechanic worked for 5 hours, and the second mechanic worked for 15 hours and together they charged a total of $1225
Means
Adding 10 x in both sides
Subtracting 1225 from both sides
Dividing 10 in both sides
x = 65
For second mecahnics rate = 125 - 65 = 60
Hence The mechanic who worked 5 hours charged $ 65 per hour, the one who worked 15 hours charged $ 60 per hour: Answer
Hope it will help :)
20000 because of the 7 is higher than 4 higher than 5
Answer:
x
=
−
3
+
√
14
,
−
3
−
√
14
Step-by-step explanation:
You solve equations be isolating the variable you want to solve for. In this case x.
On the left-hand side of the equation, we have 15x - 5x. We can simplify it to 10x.
What we did is called combining like terms. To combine terms, they must have the same variable(s) and exponent. Even though no exponent was shown for either the 15x or 5x, it is implied they are 15x^1 - 5x^1
We don't show the exponent 1 because it doesn't change the value.
Now we have the equation 10x = -47
On the left-hand side, x is being multiplied by 10. We need to reverse the multiplication operation done to x to find the value of x.
What is the opposite of multiplication? Division!
So, just divide the left-hand side by 10.
But, wait! For everything we do on one side, we must also do on the left-hand side. This way, everything stays balanced.
10x / 10 = -47 / 10
x = -47/10
We can change the improper fraction -47/10 into a decimal.
Just divide the top by the bottom.
-47 / 10 = -4.7
So, x is equal to -4.7.
