670*90
1 x 85, 5 x 17,
1 x 85, 5 x 17.
85 = 1 x 5 x 17
Two numbers with a difference of 5 have a product of 6800. x and (x + 5) are our numbers. Let's multiply them together. (x) (x+5) = x2 + 5x That is equal to the 6800 specified. x2 + 5x = 6800 >> x2 + 5x - 6800 = 0 (x + 85) (x - 80) = 0 x + 85 = 0, so x = -85 (this in not a correct answer - it has the wrong sign) x - 80 = 0, so x = 80 (a correct answer, and one of the two numbers we need) Since x = 80, x + 5 = 85 Our numbers are 80 and 85. Let's check. 80 times 85 = 6800. Our work checks.
673 x 79 = 53,167
The prime factorization of 85 is 5 x 17. Both 5 and 17 are prime numbers, and when multiplied together, they equal 85. Prime numbers are numbers greater than 1 that can only be divided by 1 and themselves without leaving a remainder.
compatible numbers mean , for example, 56 x 8. if you wanna find compatible numbers to make the problem easier, then see what 56 is close to. its close to 70, so 70 x 8 would be 560.
The two numbers that multiply together to equal 7225 are 85 and 85. This is because 85 multiplied by 85 equals 7225. In mathematical terms, 85 * 85 = 7225.
10 x 5 = 50
Compatible numbers would be easier. Rounding gives you 14 x 47. Compatible numbers could be 13 x 50 which would be closer to the actual product.
Let denote the missing number with x. So we have:(76 + 78 + 81 + x)/4 = 85(235 + x)/4 = 85(4)(235 + x)/4 = (4)(85)235 + x = 340235 - 235 + x = 340 - 235x = 105
85, as a fraction would be 85/1. Or it could be any other numbers for example, 170/2. If you say that 85 is x, it would be: x*y/y.