Students of a class have a total of 102 pens. Some of the pens are gel pens. The number of non-gel pens are 2 more than three times the number of gel pens. What is the number of gel pens in the class.
20
25
28
32
6 ( 8 + y) = 30 8 + y = _________
6
5
30
8
Z/2 - 4 = -8 Z/2 = _________
-12
+12
-4
+4
x + 10 = 11 x = ____________
21
1
-1
-21
A linear equaiton in one variable can have solutions.
One
Two
Zero
Infinite
15 y = 225 y = _______
10
15
I multiplying a certain number by 28, add 14 to the product, divide the sum by 13 and subtract 4 from the result. If I obtain twice the original number, what number did I take at first?
16
17
18
19
One angle is twice the other angle. If these angles are complementary, find the two angles.
45,90
50, 40
25, 50
30, 60
In a class of 35 students, the number of girls is two - fifth of the number of boys. Find the number of boys in the class.
22
31
If 1/2 is substracted from a number and the difference is multiplied by 4, the result is 6. Which is the number?
2
3
0
