35 x 3 = (30 x 3) + (5 x 3) = 90 + 15 = 105
Sure there is probably more than one way to make a dollar with 50 coins, but my solution is... 15 nickels and 35 pennies equals a dollar. 15 x .05 = .65 35 x .01 = .35 15+35=50 .65+.35=1.00
x + y = 2x - 15 x = 2y - 5 y = (x + 5) / 2 x + (x + 5) / 2 = 2x - 15 x + 0.5x + 2.5 = 2x - 15 1.5x - 2x + 15 + 2.5 = 0 -.5x + 17.5 = 0 x = -17.5 / -.5 x = 35 x + y = 2x - 15 35 + y = 70 - 15 y = 55 - 35 y = 20
233.3333
c/15 = 21/9 → c/15 x 15 = 21/9 x 15 → c = (7x3)/(3x3) x (3x5) → c = 7 x 5 = 35
x - 15 < 35 x < 50
15 x 35 = 525
15 = 3 x 5, 35 = 5 x 7
35 times 15 is equal to 525.
35 x 3 = 105 = 15 x 7
3 x 5 = 15 5 x 7 = 35 1, 3, 5, 15 1, 5, 7, 35
-5
1 x 105, 3 x 35, 5 x 21, 7 x 15, 15 x 7, 21 x 5, 35 x 3, 105 x 1.
Just showing how to get the answer without a calculator, the final answer is in bold 35 x 15 = 7x5 x 5x3 = 21 x 5 x 5 = 105 x 5 = 525
3 x 5 = 15 5 x 7 = 35 The GCF is 5.
3 x 5 = 15 5 x 7 = 35 3 x 5 x 7 = 105, the LCM
35 x 15 = 525