Suppose there are 19x students, 1x teachers
19x+1x=400
20x=400
x=20
there are 20 teachers and 380 students.
Answer:
2590
Step-by-step explanation:
30+2000+400+60+100
Answer:
the shorter piece is L ÷ 3 feet long in the case when the original stick is L feet long
Step-by-step explanation:
It is given that
The stick is L feet long
And, the two pieces are x and y
Now according to the question
It is given that
one of which is twice as long as the other
so,
x = 2y
x + y = L
Put the value of x in the above equation
So,
2y + y = L
3y = L
Now divide by 3
y = L ÷ 3
Hence, the shorter piece is L ÷ 3 feet long in the case when the original stick is L feet long
Answer:
x>-1
Step-by-step explanation:
-2x +3 < 5
Subtract 3 from each side
-2x+3-3 < 5-3
-2x < 2
Divide each side by -2
Remember that flips the inequality
-2x/-2 > 2/-2
x>-1
