X - 5y = 0 (1)
15x + 10y = 17 (2)
From (1),
2x - 10y = 0 (3)
(2) + (3),
17x = 17
x= 1
Sub x=1 into (1)
x - 5y = 0
- 5y = -1
y = 1/5
Therefore x = 1, y = 1/5.
Hope it helps : )
-16F temperature change divided by 4 hour difference from 8 to 12/noon.
-16 divided by 4 = -4
The answer is -4 degrees Fahrenheit.
For the total costs to be the same a pair of skis must be rented for 3 hours.
Two shops rent pairs of skis for a rental fee plus a fee per hour.
Let, the number of hours must a pair of skis be rented = x
Equation for Shop A,
3 + 9x equation 1
Equation for Shop B,
9 + 6x equation 2
Total cost for Shop A and Shop B is same so we can equate equation 1 and equation 2 as mentioned below:
3 + 9x = 9 + 6x
3x = 6
x = 3
Thus we can write, for the total costs to be the same a pair of skis be rented for 3 hours.
To know more about Mathematical Expressions refer to the link:
brainly.com/question/723406
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Answer:
<em>10j + v - 20</em>
<em>Step-by-step explanation:</em>
<em>~Thank you have a nice day/night~</em>
<em>~Evelyn </em>
