Answer:
90 miles
Step-by-step explanation:
30x3=90 he drove 30x2 add 1 more 30
This Equation is true because both sides are equal
Question 12 is 12 1/3, Question 13 is 5/12, Question 14 is 23/5
Answer:
Step-by-step explanation:
I am sorry i need points, i cant
Answer:
C. a = 3
b = 7
c = -20
Step-by-step explanation:
x = -b+/- (sq) b^2 - 4ac.
Well the way to plug the numbers in is by using this equation: Ax^2 + Bx + C = 0
S if you use your equation : 3x^2 = 20 - 7x
First you have to move everything to one side.
So it'll look like this:
3x^2 = 20 - 7x
-20 -20
3x^2 - 20 = -7x
+7x +7x
3x^2 - 20 + 7x = 0
don't forget that... Ax^2 +Bx+ C= 0
3 = A
7 = B
-20 = C
