Let x = discount rate
Equate:
$80(1-x) = $60
Solve for x:
1-x = 60/80
1-x = 3/4
x = 1 - 3/4
x = 1/4 or 0.25
x = 25%
There we go!
X + 3x-10 + 70-x = 180
3x = 120
X = 40
The size of the largest angle is 3x - 10, because it is the biggest side.
Hope it helps, have a great day!
Step-by-step explanation:
1/4 • x - 8 = -23
1/4 • x= -23+8
1/4 • x= - 15
x = -15/4
x = - 3 3/4
you can also try to use the app called photomath, its really helpful and it gives you step by step explanation
Answer:
106
Step-by-step explanation:
If 1 student gets a 1, and 106 get a 100, then the mean will be 99.99, and 106 students will get the extra credit.
