Answer:
6
Step-by-step explanation:
6
Answer:

Step-by-step explanation:
We are given the equation

We want to solve for x, therefore we must isolate x on one side of the equation.
14 is being added to 3x. The inverse of addition is subtraction. Subtract 14 from both sides of the equation.



x is being multiplied by 3. The inverse of multiplication is division. Divide both sides of the equation by 3.



Let's check our solution. Plug 7 in for x and solve.




This checks out, so we know our solution, <u>x=7 </u>is correct.
Answer:
11.59 hours {Basically 12 hours]
Step-by-step explanation:
Sarah's coin rate is 23 coins/8 minutes, or 2.875 coins/minute
Rate * Time(X) = Coins
(2.875 coins/min)*(X) = 2000 coins
X = (2000 coins)/(2.875 coins/min)
X = 695.65 minutes
(695.65 minutes)*(1 hour/60minutes) = 11.59 hours
X+y=17 solve for a variable and plug into the 2nd equation
(x+3)/y=1 also could be written as x+3=y
x=17-y
17-y+3=y combine and add y over to other side
20=2y
y=10
plug back in x+10=17
x=7
so the original fraction is 7/10
Answer:
1/3 because he took one red and there were 4 but now there is 3.