Answer:
x = -4
y = -25
Step-by-step explanation:
Since one of the equations is already set with one variable as the subject ( y = 7x + 3) substitute that into the one below it:
9x - 2y = 14
9x - 2(7x + 3) = 14
9x - 14x - 6 = 14
-5x = 20
x = -4
Substitute this into one of the equations and solve for the other variable:
y = 7x + 3
y = 7(-4) + 3)
y = -28 + 3
y = -25
hope this helps!
Answer: 4/41?
Step-by-step explanation:
Is that what you wanted?
Or do you need it as a percentage?
Answer:
Change in position after 30 seconds will be 
Step-by-step explanation:
Given:
Change on position in every 10 seconds = 
To Find:
Change in position after 30 seconds = ?
Solution:
For every 10 seconds the team changes a distance of feet
After first 10 seconds
The change in position will be feet = 
After next 10 seconds i.e., after 20 seconds
The change in position will be = 
+
=>
After next 10 seconds i.e., after 30 seconds
The change in position will be = +
=> 
Step-by-step explanation:
11 a day for six day I need more explanation
To solve this question, you need to know the rate in which the money is being spent. First, you know the y-intercept, which is 4000, or the money she owned before spending it. Next, you know, how much she had spent in the duration of 3 months. So, if you substitute those numbers into y=ax+b, it would be 2800=-3a+4000 (or 2800=4000-3a either way it is equivalent) If you solve this, you know that the college freshman is spending her money at a rate of $400 per month. Hope this helps :)
