Answer:
Step-by-step explanation:
2x+3x+4x=180
8x=180
divide by 8 to both sides
x=22.5
Answer:
The answer is C.
Step-by-step explanation:
Hi
16.8/0.8 = 168/8 = 21
168 |__8__
-16 21
------
08
- 08
------
00
Answer: 21
Answer:
639 students attend the highschool
Step-by-step explanation:
<em>Find one-ninth of the students</em>
<em>Since 142 students is two-ninths of students, we would divide</em>
1) 142/2=71
<em>71 students is only one ninth of the students, we need to find 9/9 of students</em>
2) 71*9 = 639
639 students attend school