She can expect to pick a black marble 125 times
Answer:
width=3
length=9
Step-by-step explanation:
1/2 perimeter: 24/2=12
let x: width; y: lenght
y=2x+3
x=12-y
y=2(12-y)+3
y=24-2y+3
y+2y=27
y=9
x=12-9=3
Answer:
D) 40
Step-by-step explanation:
triangles equal to 180 degrees
2x+10+x+50=180
3x+60=180
3x=120
x=40
Answer:
see image
Step-by-step explanation:
Hope this is clear enough, if not feel free to ask me any questions.
0.75 or 3/4 that’s your answer as a decimal and fraction :)