Where x is the percent discount,
x = 5/20 * 100.
The percent discount is 25%.
Answer:
3/11 or 0.27777777777
Step-by-step explanation:
Answer:
(7,5)
Step-by-step explanation:
{2x + 4y = 34
{4y = 27 - x
2x + 27 - x = 34
x=7
4y = 27 - 7
y = 5 so the answer is ( 7,5)
Answer:
34 and 38
Step-by-step explanation:
<span>9x+8y=-3
5x-2y=-21
multiply 2nd equation by 4
</span><span>9x + 8y = -3
20x - 8y = -84
-----------------add
29x = -87
x = -3
</span><span>9x+8y=-3
</span><span>9(-3)+8y=-3
-27 + 8y = -3
8y = -3 +27
8y = 24
y = 3
answer
(-3,3)</span>
