Answer: 8:1
Step-by-step explanation:
480/60 = 8/1
Answer: (-2,1) OR x=-2,y=1
Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.
Let the price of paint be x and the price of brush be y
8x + 3y = 152.5 ------------ (1)
6x + 2y = 113 --------------- (2)
(1) x 2 :
16x + 6y =305 -------------(1a)
(2) x (3) :
18x + 6y = 339 -------------(2a)
(2a) - (1a) :
2x = 34
x = 17 ---------- sub into (2)
6(17) + 2y = 113
102 + 2y = 113
2y = 113 - 102
2y = 11
y = 5.5
x = $17, y = $5.50
Each gallon of paint costs $17 and each brush costs $5.50
Answer:
a.(x+5)(x-5) b.(y+6)(y-6) c.(x-1)(x+13) d. (s+2)(s+5)
Step-by-step explanation:
Sorry no step for c and d
for a 25 is a perfect square 5*5=25 -5*5=-25
for b it's same
sorry I'm rushing
Step-by-step explanation:
14x+10+2x
16x+10. Answer 1
5x+3x+10+8x
16x+10. Answer 2
So, both Answers are same, So the expressions are equivalent...
