30 + 50 + 70 = 150
The sum of 70 + 30 + 1250 + 50 + 100 = 1500
If you have 70% of something and 30% of another identical "something" that is equivalent to 50% of the two "somethings".
362. Next time, just use a calculator.
70 + 80 + 70 + 30+ 80 + 80+ 80 = 490
If you have two pairs of numbers whose sum is the same, their product increases as the two numbers get nearer to half the sum. The product is a maximum at that value. 70 * 30 = (50+20)*(50-20) The right hand side is the factorisation of the difference of two squares, and can be shown to be equal to 502 - 202 Since 202 must be positive (it is a square), 70*30 must be less. For all values of x, (50+x)*(50-x) is less than or equal to 50*50=2500 with equality attained only when x = 0.
70 + 70 + 50 + 50 = 240
The sum of 70 + 30 + 1250 + 50 + 100 = 1500
If you have 70% of something and 30% of another identical "something" that is equivalent to 50% of the two "somethings".
70 pounds!
50 + 70 = 120
362. Next time, just use a calculator.
70 + 80 + 70 + 30+ 80 + 80+ 80 = 490
30+70 = 100
the GCF of 30, 50, and 70 is10
20 + 50 = 70.
70
Take your pick; 10 and 20, 10 and 30, 10 and 40, 10 and 50, 10 and 60, 10 and 70, 10 and 80, 10 and 90, 20 and 30, 20 and 50, 20 and 70, 20 and 90, 30 and 40, 30 and 50, 30 and 70, 30 and 80, 40 and 50, 40 and 70, 40 and 90, 50 and 60, 50 and 70, 50 and 80 50 and 90, 60 and 70, 70 and 80, 70 and 90, 80 and 90.