Answer:
Either y =
or, y =
Step-by-step explanation:
We have to solve the following quadratic equation
45y² + 15y - 10 =0
Now, dividing both sides with 5 we get, 9y² + 3y -2 =0
Hence, to solve the above equation we have to factorize the left-hand part of the equation.
So, 9y² + 3y - 2 =0
⇒ 9y² +6y -3y -2 =0
⇒ (3y +2) (3y -1 ) =0
⇒ Either (3y +2) =0 or (3y -1) =0
⇒ Either y =
or, y =
(Answer)
Answer:
y=7/4x+7
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
7*3=21
2/3 of 21 is 14 so she saved 14 dollars
Answer:
Each salesperson sold 89 cars last year.
Step-by-step explanation:
13x = 1157 Set up an equation with an x-varible in place of the number of cars to be found
13x/13 = 1157/13 Divide 1157 by 13
x = 89