Answer:
Step-by-step explanation:
let ∠c=x
∠a=x+20
∠a+∠b+∠c=180
x+20+x+90=180
2x=180-110=70
x=35
∠c=35°
∠b=90°
∠a=35+20=55°
The answer is to that question is 9.
1. they found the mean,
3. mean=17.4
median, 15
mode= 25
Answer:
y= 2x + 85
y= $555
x= $235
Step-by-step explanation:
Let y be the amount the senior class raised
Let x be the amount the freshmen class raised
Insert known values
$555 = 2x + $85
Subtract 85 from both sides
$470 = 2x
Isolate the variable (x) by dividing each side by 2
$235 = x
Hope this helps! :)
