28x7.5 = 210
49 − 28 = 21 difference 21 / 28 x 100 = 75%
3 x 25 = 75 15 x 5 = 75 1 x 75 = 75 5 x 15 = 75
You can multiply any of these sets to get 75: 1 x 75 = 75 3 x 25 = 75 5 x 15 = 75
116 x 75 = 8700
7.5 x 75 = 562.5
75% X 28 = 21
28 X .75 = 21 or 28 x 3/4 = 21
49 − 28 = 21 difference 21 / 28 x 100 = 75%
103
25 + 3 = 28 25 x 3 = 75 The two numbers are therefore 25 and 3.
To calculate the atomic mass of element X, we can use the weighted average formula based on the isotopic abundances. Given that 75% of the isotopes are X-28 and 25% are X-24, the calculation is as follows: Atomic mass = (0.75 * 28) + (0.25 * 24) = 21 + 6 = 27. Thus, the atomic mass of element X is 27 atomic mass units (amu).
75 Times Table 1 x 75 =75 2 x 75 =150 3 x 75 =225 4 x 75 =300 5 x 75 =375 6 x 75 =450 7 x 75 =525 8 x 75 =600 9 x 75 =675 10 x 75 =750
3 x 25 = 75 15 x 5 = 75 1 x 75 = 75 5 x 15 = 75
You can multiply any of these sets to get 75: 1 x 75 = 75 3 x 25 = 75 5 x 15 = 75
x*200 = 75/100 so x = 75/20000 = 0.00375x*200 = 75/100 so x = 75/20000 = 0.00375x*200 = 75/100 so x = 75/20000 = 0.00375x*200 = 75/100 so x = 75/20000 = 0.00375
1 x 75, 3 x 25, 5 x 15, 15 x 5, 25 x 3, 75 x 1
1 x 28 = 282 x 28 = 563 x 28 = 844 x 28 = 1125 x 28 = 1406 x 28 = 1687 x 28 = 1968 x 28 = 2249 x 28 = 25210 x 28 = 280