Step-by-step explanation:
x-4+3x+100=180
4x+96=180
4x=84
x=21
Answer:
31 students will be going on the trip.
Step-by-step explanation:
Create an equation.
60x+40x+30x=4030
Combine like terms.
130x=4030
Divide.
x=31
Checking solution...
60(31)+40(31)+30(31)=4030
1860+1240+930=4030
4030=4030
Hope this helps!
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Answer:
14..........................
20 percent
If you cross multiply 30 w/ 100 and then divide it by 150 you will get 20.