Answer
x=-5/2
Step-by-step explanation:
2×2+2x+1=0
4+2x+1=0(2×2=4)
4+1+2x=0
5+2x=0
2x=-5
x=-5/2
Answer:
-1/2 is the slope of the graph.
I believe there are 20 quarters and 3 nickels.....
Total value of the jar is $5.15.....
Quarters are worth 25 cents
And nickels are worth 5 cents.
First you know that there are 4 quarters in a dollar.
You have 5 dollars so you do 4 x 5 = 20
So five dollars ($5.00) is 20 quarters.
And you still have 15 cents left.
Because quarters are 25 cents the rest are nickels.
Nickels are worth 5 cents so you'd do 5 x 3 = 15.
15 cents!
Add all this together and get $5.15.
So your answer is
There are 20 quarters and 3 nickels in the jar.
First multiply what's within the parentheses.
(Five times 2 = ten) times ( three times fifteen= 45)
(Ten) times (45) equals 450
