Aconvex polyhedron has (4a) faces, (6a) vertices, and (8a + 2) edges. what is the value of a?

euler’s formula: v + f = e + 2

a =

V + F = E + 2
Plugging in the given values:-

6a + 4a =  8a + 2 + 2

10a - 8a = 4
2a = 4
a = 2

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to