x/(10-5) = 3 x/5 = 3 x = 3*5 = 15
from 2 3 5 10 remove 2 and 5 asthey already go into 10 as 2 x 5 = 10so only leaving 3 and 10 which3 x 10 = 30Check:30 = 2 x 15 = 3 x 10 = 5 x 6 = 10 x 3
x/10 = 3/5 multiply both sides by 10 x = 30/5 = 6
x2 - 2x - 10 = 5 x2 - 2x - 15 = 0 (x - 5)(x + 3) = 0 x - 5 = 0 and x + 3 = 0 So, x = 5 and x = -3
2 x 45 3 x 30 5 x 18 6 x 15 9 x 10 2 x 3 x 15 3 x 3 x 10 2 x 5 x 9 3 x 5 x 6 2 x 3 x 3 x 5
x/(10-5) = 3 x/5 = 3 x = 3*5 = 15
which expression is equivalent to (3 x 10^3) (5 x 10 ^5) sorry that is what i ment
x/(10-5) = 3 x/5 = 3 x = 3*5 = 15
3 x 3 x 5 x 5
2 x 5 = 10 3 x 3 x 5 = 45 2 x 3 x 3 x 5 = 90, the LCM
from 2 3 5 10 remove 2 and 5 asthey already go into 10 as 2 x 5 = 10so only leaving 3 and 10 which3 x 10 = 30Check:30 = 2 x 15 = 3 x 10 = 5 x 6 = 10 x 3
x/10 = 3/5 multiply both sides by 10 x = 30/5 = 6
15 x 13 = 195A simpler way of breaking this down is:15 x 13 =(10 + 5) x (10 + 3) =(10 x 10) + (10 x 3) + (10 x 5) + (5 x 3) =100 + 30 + 50 + 15 = 195
It is 30 The prime factors are 3 = 3 x 1 5 = 5 x 1 10 = 2 x 5 The unique prime factors are 2 x 3 x 5 = 30
x2 - 2x - 10 = 5 x2 - 2x - 15 = 0 (x - 5)(x + 3) = 0 x - 5 = 0 and x + 3 = 0 So, x = 5 and x = -3
5000 = 5 x 1000 & 1000 = 10 x 10 x 10 = 2^3 x 5^3 Hence in exp in exponential form 5^(1) x 2^3 x 5^3 Remember for exponents, when multiplying with a common coefficient, you add the exponents(indices) Hence 2^3 x 5^(1 + 3) = 2^3 x 5^4
5% of 65,000,000= 5% * 65000000= 0.05 * 65000000= 3,250,000