Answer:
Step-by-step explanation:
Equation
-5(-3x+1)=-45 If this is not correct, leave a comment please.
Solution
-5(-3x+1)=-45 Divide by -5
-5(-3x + 1)/5 = -45/-5
(-3x + 1) = 9 Remove the brackets
-3x + 1 = 9 Subtract 1 from both sides
-3x + 1 - 1 = 9 - 1 Simplify
-3x = 8 Divide by -3
-3x/-3 = 8/-3
x = -8/3
or
x = -2.66
or
x = - 2 2/3
5 2/3 gallons of fuel ... 2 hour trip
x gallons of fuel = ? ... 1 hour
If you would like to know how many gallons were used each hour, you can calculate this using the following steps:
5 2/3 * 1 = 2 * x
17/3 = 2 * x /2
x = 17/6 = 2 5/6 gallons of fuel
The correct result would be 2 5/6 gallons of fuel.
To prison or to the cemetery
Answer:
15 meters
Step-by-step explanation:
that means the leg lengths of the triangle are 12 m and 9 m
use Pythagorean theorem:
D = root (12^2 + 9^2) = root( 144 + 81) = root(225) = 15 m
