What number is three less than a multiple of ten, two more than a perfect square and has two digits?
2007-06-21 19:12:38 · 4 answers · asked by Alena M 2 in Science & Mathematics ➔ Mathematics
To reason this out ...
Two digits tells us that it's less than 100.
Look at the perfect squares and add two.
1, 3
4, 6
9, 11
16, 18
25, 27 ... We don't have to go any further because this one is three less than a multiple of ten. 27
2007-06-21 19:19:01 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋
27
2007-06-21 19:16:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
27
10*3 - 3 = 27
5^2 + 2 = 27
2007-06-21 19:15:53 · answer #3 · answered by Anonymous · 0⤊ 0⤋
27
I just started with 2 and squared each number in my head and then applied your criteria. I'm sure there is a formula or set of equations to solve for it but I took the easy way.
2007-06-21 19:18:56 · answer #4 · answered by Net Rider 3 · 0⤊ 0⤋