C=11.27π feet
Diameter=11.27 feet. Hope it help!
-24 = 14y - 5
First, add 5 to both sides. / Your problem should look like: -24 + 5 = 14y
Second, simplify -24 + 5 to get -19. / Your problem should look like: -19 = 14y
Third, divide both sides by 14. / Your problem should look like:
Fourth, switch sides. / Your problem should look like: y =
Answer as fraction: y =
Answer as decimal: y = -1.3571
Answer:
81 cents
Step-by-step explanation:
11 cents + 30 cents (3 dimes, 10 cents each) + 15 cents (3, 5 cent coins) + 25 cents (1 quarter, 25 cents) = 81 cents
Answer:
(-2.2, -1.6), (3, 1)
Step-by-step explanation:
You don't have to go far to find the equations. They are right there in your problem statement. Perhaps you want to find the solutions to the equations.
Use the first equation to write an expression for x, then substitute that into the second equation:
x = 2y +1
y^2 -3(2y+1)(y) +8 = 0
-5y^2 -3y +8 = 0
-(5y +8)(y -1) = 0
y = -8/5 or y = 1
The corresponding values of x are ...
x = 2(-8/5)+1 = -11/5
x = 2(1) +1 = 3
The solutions are (x, y) = (-2.2, -1.6) and (3, 1).