You said that " 7x - 4x = 30 ".
From only that much information, I can see that 3x must be 30,
which leads me directly to the realization that 'x' is 10 .
(X - 30) does.
-465
36
If you add what you subtracted, you get the original number. If you subtract what you added you get the original number. 40-10=30 30+10=40
7 hours subtracted by 30 minutes = -23
(X - 30) does.
which least number should be subtracted from 1000 so that 30 divides the difference exactly
-465
36
36
If you add what you subtracted, you get the original number. If you subtract what you added you get the original number. 40-10=30 30+10=40
The number is negative 852.
7 hours subtracted by 30 minutes = -23
1980 subtracted by 2010 = -30
80 does not go into 30 any whole number of times. In division, the number being divided (30) is called the dividend, and the number we are dividing by (80) is called the divisor. When the dividend is smaller than the divisor, the result is always 0 with a remainder equal to the dividend. So, in this case, 80 goes into 30 zero times with a remainder of 30.
23 edges because a rectangle has 5 edges and 6 vertices, 5 times 6 is 30 subtracted by the number of faces(7) is 23.
-30 and -30