The number of classes Anna can take so the total cost for the month will be the same is 5.
The monthly cost would be $37.50.
<h3>When would the total cost be the same?</h3>
When the monthly cost is equal, both equations would be equal: 7.5x = 5.5x + 10
In order to determine the value of x, take the following steps:
- Combine similar terms: 7.5x - 5.5x = 10
- Add similar terms: 2x = 10
- Divide both sides by 2 : 10 /2 = 5
Monthly cost when the cost is the same: 7.5 x 5 = $37.50
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Answer:
9x^2 -4
Step-by-step explanation:
(3x+2) (3x-2)
FOIL
first: 3x*3x = 9x^2
outer: 3x*-2 = -6x
inner: 3x*2 = 6x
last: -2*2 = -4
Add together
9x^2 -6x+6x -4
9x^2 -4
Lets try substitution5x+2y=21=5x=21-2y=x=(21-2y)/5
sub into second equation
-2(21-2y)/5+6y=-34(-42+4y)/5+6y=-34solve for yy=-64/17plug into equation and solve for x=(97/17)
Answer:
d) y = -6
Step-by-step explanation:
Given:
50% of the people that get mail-order catalogs order something.
Determine the probability that exactly 2 out of 10 people getting the catalogs will order something.
If the total number of people is 10, we can calculate the number of people who will order something from the catalogs:
10 * 0.50 = 5 people.
The probability that exactly two out of ten people will order something is:
2/5 = 0.4
Therefore, there is a 40% chance that the exact two people who received the catalogs will order something from it.
