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Studentka2010 [4]
2 years ago
13

How many solutions does the system of equations have ? Y=5x + 15 Y=5x + 12

Mathematics
1 answer:
lianna [129]2 years ago
5 0

Answer:

no solutions

Step-by-step explanation:

We can solve this system using elimination. In this case, we can eliminate x and y by subtracting the two equations:

0=15-12

0=3

This is not true, meaning the system does NOT have any solutions.

OR

The equation for a line is:

y=mx+b

m: slope

b: y-intercept

Here we can see the two lines have the same slope, meaning they are parallel. If they are parallel, they do not intersect which means there is no solution.

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Patti's dance class starts at<br> quarter past 4. At what tim<br> does her dance class start?
Sati [7]

Answer:

The answer is 4:15

Step-by-step explanation:

7 0
3 years ago
Daniel, Clarence, and Matthew split a $20.20 dinner bill so that Daniel pays half of what
Bingel [31]

Answer:

8.80$

Step-by-step explanation:

Total 20.20. 6.06 x 2=12.12. 20.20-12.12=8.80$

Mathew paid 8.80$

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7 0
3 years ago
1 2 3 4 5 6 7 8 9 10
daser333 [38]
<h3>Answer:</h3>

2.25

<h3>Explanation:</h3>

Consider the square ...

... (x+a)² = x² +2ax +a²

The constant term (a²) is the square of half the x-coefficient: a² = (2a/2)².

The x-coefficient in your expression is 3. The square of half that is ...

... (3/2)² = 9/4 = 2.25

Adding 2.25 to both sides gives ...

... x² +3x + 2.25 = 6 + 2.25

... (x +1.5)² = 8.25 . . . . completed square

4 0
3 years ago
Can someone explain to me how to do this
rusak2 [61]

rank | 1st | 2nd |TOTAL
------|-----+-------|----------
a     | 6   +    9   |  =15
b     | 7   +   3    | =16
c     | 9   +   7    | =23
d     | 6   +   7    | =22
e     | 8   +  1     | =?


If you add the 1st in line a (6) and you add it to the 1st in line b (7) + the 2nd in line b (3) you get 16. Repeat the same logic/pattern to all c,d..
This is the pattern to all this puzzle;

So the before last term is :  9+6+7 = 22
and the last term : 6+8+1 = 15


7 0
3 years ago
If you flip a pair of coins 48 times, how many times are you most likely to get 2 heads.
pentagon [3]
But actually its based on your luck
3 0
3 years ago
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