Answer:
a=25
Step-by-step explanation:
a-15+4=14
a-15=14-4
a-15=10
a=10+15
a=25
Amount the coach will pay for the tennis balls
= 30/12 x 100
= $250
Answer is the first one, A. 8 1/4
Answer:
x = 1.434 and x=0.232
Step-by-step explanation:
To find the root of the equation stated above we need to:
(1) Write the polynomial equation with zero on the right hand side:
⇒
(2) Divide the whole equation by 3
⇒
(3) Use the quadratic formula to solve the quadratic equation:
The quadratic formula states that the two solutions for a quadratic equation is given by:
(1)
In this case, a = 1, b =
Substituiting a, b and c in equation (1) We get:
(1)
The two solutions are:
x = 1.434 and x=0.232