1 x 40 = 40 2 x 20 = 40 4 x 10 = 40 5 x 8 = 40
Numbers are x, x +2 and x + 4 x (x+2) = (x+4)^2 - 40 x^2 + 2x = x^2 + 8x + 16 - 40 2x - 8x = 16 - 40 -6x = -24 x = 4 Numbers are 4, 6 and 8 Check: 4 x 6 = 24, 8^2 - 40 = 64 - 40 = 24 QED
1/2 x 179 = 89.5
160 = 4 x 40 so 156 = 4 x 39 then 152 = 4 x 38
Write it as a fraction and then multiply by 100 %: "What percent of 40 is 4?" becomes "4 out of 40 is what percent?" which is: 4/40 x 100 % = 1/10 x 100 % = 10 %
179 multiplied by 40 is 7,160.
-160 Let x = the number 1/4 of x = -40 x/4 = -40 multiply the equation by 4 x/4 * 4 = -40 * 4 x = -160 thus, 1/4 of -160 = -40
160 = 40 x 4
1 x 179, 179 x 1
ten 24 x A = 6 4 x A = 1 4/4 x A = 1/4 = 1/1 x A = 1 x A = A 40 x A = 40 x 1/4 = 40/4 = 10
40 + 4% = 40 x (1 + (4/100)) = 40 x 1.04 = 41.6
- X/4 = 10 multiply through by 4 - X = 40 apply a negative 1 X = - 40 ========check in original equation - (- 40/4) = 10 40/4 = 10 10 = 10 =======checks
The prime factorization of 358 is: 2 x 179
10% off 179 = 179 - (0.1 x 179) = 161.10
1 x 40 = 40 2 x 20 = 40 4 x 10 = 40 5 x 8 = 40
40 + 44 = (4 x 10) + (4 x 11) = 4 x 21 = 84
1 x 40, 2 x 20, 4 x 10, 5 x 8 = 40