Answer:
Equations:
--- Cindy
--- Ruben
Solution to equation:
Time they have the same amount: 14 minutes
Number of cards they have at that time: 140 flashcards
Step-by-step explanation:
Solving (a): Variables and what they represent
The variables to use are x and y
Where x represent the minutes and y represents the number of flashcards in x minutes
Solving (b): System of linear equation
Cindy:
per minute
Total number of flashcards (y) in x minutes is:
Ruben:
per minute
Total number of flashcards (y) in x minutes is:
Solution to Equations:
Time they have the same amount.
To do this, we expressions
i.e.
Collect Like Terms
Number of cards they have at that time.
Here, we simply substitute 14 for x in any of the equations.
or
Answer:I don’t know if I’m right but imma have to say G
Step-by-step explanation:
I’m not good at math
If two lines intersect, and intersect only at one point, then the coordinates of that point satisfy the equations of the lines.
If, on the other hand, one line coincides with the other, then there are an infinite number of solutions.
Answer:
Step-by-step explanation:
<em>Hey there!</em>
Cross multiply the given info
60 = 8m
Divide both sides by 8
m = 7.5
<em>Hope this helps :)</em>
Answer:
x^2 - 2x - 4 = 0.
Step-by-step explanation:
Written in factor form we have:
(x - ( 1 + √5)( x - (1 - √5)) = 0
(x - 1 -√5)( x - 1 +√5)) = 0 Expanding:
x^2 - x +√5x - x + 1 - √5 - √5x + √5 - 5 = 0
x^2 - 2x - 4 = 0.