English to Math
Two more than a number
x+2
Which of these numbers are integers:
-1, 0, 1-1, 0, 1
x10 / x2
x10-2 = x8
6 and 4
12
11x-4=29
11x=33
x=3
Two more than five times a number
5x + 2
Which of these numbers are whole:
-3, 0, 12/6
0, 12/6 = 2
(x2y)10
x20y10
9 and 7
63
1+x/9 = 4
x/9=3
x=27
Five less than one third of a number
1/3 x - 5
Which of these numbers are rational:
-0.6666... , 0.66666..., 0.6704034....
-0.666666.... and 0.66666....
(-3xyz)2
(-3)2x2y2z2 =9x2y2z2
25 and 30
150
5x+5=3(5x-4)-10x
No solution.
Sixteen increased by twice a number
16+2x
which of these numbers are irrational:
-2.5 , 25/10, 13988/89
None. They are all rational.
(2x3y3)(5x2y5)
10x5y8
12, 4, 8
24
|x-3|=5
x-3=5 or x-3=-5
x=8 or x=-2
Twenty-five decreased by one fifth of a number
25-1/5 x
Which of these numbers are natural:
50/50, -50/50, 2.9, 5, 0 ?
50/50=1, 5
(x-2yz)(xyz)(xy-8)
x0y-6z2=z2/y6
10, 25, 8
200
2|h|-3=8
2|h|=11 ; |h|=11/2
h=11/2 or h=-11/2