This is a common early math question which is attempting to teach "quick math".7 x 23 can be described with the distributive property because 23 can be rewritten as "20 + 3"This means that 7 x 23 can be rewritten as 7 x (20 + 3)THE 7 DISTRIBUTES TO EACH NUMBER AND MULTIPLIES(7 x 20)+(7 x 3) --> 140 + 21 = 161
2x + 7 + 2x = 23 4x + 7 = 23 4x = 16 x = 16/4 x = 4
2520. 84 = 22 x 3 x 7 360 = 23 x 32 x 5 lcm = 23 x 32 x 5 x 7 = 2520
_//(2*2) - 4x - 7// * _//2// = 0 4* 12x - 7 * 122/100 = 0 28*12x * ((28*12)/122) = 0 (23/10 * x) * ((23/10 * x)/122) = 0 23/10 *x = 0 / ((23/10 *x)122) 23/10 *x = 0 23/x = 10 x = 2.3
200 = 23 x 52 175 = 52 x 7 hcf = 52 = 25 lcm = 23 x 52 x 7 = 1400
Yes, because: x+7 = 23 x = 23-7 x = 16
7 x 23 = (7 x 20) + (7 x 3)
The answer to 23 X 3 X 7 is 483 Hope i helped you with that answer
Prime factors are 2, 2, 2, 7, 23 Others are combinations of the prime factors, i.e. 2 x 2 = 4 2 x 2 x 2 = 8 2 x 7 = 14 2 x 2 x 7 = 28 2 x 23 = 46 2 x 2 x 2 x 7 = 56 2 x 2 x 23 = 96 7 x 23 = 171 2 x 2 x 2 x 23 = 184 2 x 7 x 23 = 322 2 x 2 x 7 x 23 = 644
Since you didn't include parentheses, I wrote and solved the problem as two different ways. 23(x - 7) = 23x - 161 x - (7 * 23) = x - 161
The number is -14/23 or -0.6087. Let x = the number Equation: 1/2 * x = 12 * x + 7 multiplying the equation by 2 2(1/2x) = (12x + 7)2 x = 24x + 14 x - 24x = 14 -23x = 14 x = -14/23 or -0.6087 check: 1/2 * x = 12 * x + 7 1/2 (-14/23) = 12 (-14/23) + 7 -14/46 = -168/23 + 161/23 -7/23 = -7/23
1400 = 23 x 52 x 7
This is a common early math question which is attempting to teach "quick math".7 x 23 can be described with the distributive property because 23 can be rewritten as "20 + 3"This means that 7 x 23 can be rewritten as 7 x (20 + 3)THE 7 DISTRIBUTES TO EACH NUMBER AND MULTIPLIES(7 x 20)+(7 x 3) --> 140 + 21 = 161
2x + 7 + 2x = 23 4x + 7 = 23 4x = 16 x = 16/4 x = 4
7560 945 = 33 x 5 x 7 1512 = 23 x 33 x 7 lcm = 23 x 33 x 5 x 7 = 7560
21 = 3 x 7 56 = 23 x 7 LCM = 23 X 3 X 7 = 168
-4x - 7 = 16 -4x = 16 + 7 -4x = 23 x = -23/4 x = -5.75 Check: -4(-5.74) - 7 = 16 23 - 7 = 16 16 = 16