Answer:
7.69%
Step-by-step explanation:
100 pennies, 20 nickels, 10 dimes is equal to 130 coins.
can be simplified to 
.
= .0769 x 100% = 7.69%
<em><u>Hope this helps, if my answer or explanation is wrong</u></em>
<em><u>feel free to message me in the comments :).</u></em>
<em><u /></em>
- genius423
Answer:
(2.) 9.2
Step-by-step explanation:
the longer decimal from of the answer is approximately 9.21954, but this real number rounds to 9.2 since the hundredths place is less than 5.
Answer:
The answer to this is 10 visits.
Step-by-step explanation: For this algebra, take a guess at first, and then you should be able to find an answer from there. All you have to do mathematically, is calculate (using the two starting values), when the prices are the same. For this, the equation would look something like: 5x + 130 and 3x + 150. X represents the unknown number of visits. When x is = 10, the prices are the same, 180 = 180. Edit: Another way you can do this, is graph a line of the two equations, and see what point they intercept. The X value of the point usually is the number of times something occurs until the price is the same, whereas the y value of the point is usually the price.
Answer:
Graph #2
Step-by-step explanation:
I would use Desmos for this, makes it easier to find out which graph is for the equation.
Answer:
3, and b
Step-by-step explanation:
1. x =3
Because you have 3 little squares for one x
2. x= -12
b) 15+6=21
