2006-09-18 14:13:25 · 7 answers · asked by I luv tyler 1 in Education & Reference ➔ Homework Help
73: 9 * 8
2006-09-18 14:17:32 · answer #1 · answered by ~O.N.E.~ 5 · 0⤊ 0⤋
73
2006-09-18 21:23:19 · answer #2 · answered by smiley 2 · 0⤊ 0⤋
73
2006-09-18 21:22:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
73
2006-09-18 21:17:42 · answer #4 · answered by Computer Guy 7 · 0⤊ 0⤋
list all the primes within the range: 61, 67, 71, 73, 79
one more than the product ... so the product must be 60, 66, 70, 72, 78
by inspection, we know 72 = 8 * 9
you can also sove it as x(x+1) = 72 and use solution for quadratic equation
2006-09-18 21:23:33 · answer #5 · answered by m s 3 · 0⤊ 0⤋
73
8*9=72
72+1=73
2006-09-18 21:15:29 · answer #6 · answered by Dakota_Roots 2 · 0⤊ 0⤋
7x8=56+1=57 too small
8x9=72+1=73 ok
9x10+1=91 too big
2006-09-18 21:17:21 · answer #7 · answered by hayharbr 7 · 0⤊ 0⤋