Answer:
126°
Step-by-step explanation:
(2x +18)° = (3x)°
2x + 18 = 3x
18 = 3x - 2x
18 = x
therefore, (3x)° = (3*18)°= (54)°
Okay, so you know that something minus 20% of its total will equal 75%. You can set up an equation:
X - 0.2X = 75
0.8X = 75
X = 93.75 ,
meaning that the original price was $93.75
Answer:y 43
Step-by-step explanation:
Answer:
4 hours and 7 hours
Step-by-step explanation:
Marcus = x hours
Donnell = x + 3 hours
Total = 11 hours
- x + x + 3 = 11
- 2x + 3 = 11
- 2x = 8
- x = 4
So Marcus practiced 4 hours and Donnell practiced 7 hours
