Because an equivalent decimal names the same amount as another decimal. the 0 has no value
(7x - 2y) (3x +5y) ( First open brackets)
= 21x² + 35xy - 6xy - 10y² ( solve like terms)
= 21 x² - 10y² + 29xy.
Answer: 45% of 62 would be 27.9
Step-by-step explanation:
So the way I always figure these out is state the facts first. So we know 62 is equal to 100% in the equation. That means if we divided 62 by 10 then we would also divide 100% by 10%.
62 (divided by) 10 = 6.2
100% (divided by) 10% = 10%
Now we know what 10% percent of 62 is. We need to find 45%. Well divide 6.2 by 2 to get 5 % of 62. (That would be 3.1). Now that we know 10% of 62 and 5% of 62 we are all set.
6.2 x 4 = 24.8
24.8 = 40%
3.1 + 24.8 = 27.9
27.9 = 45% of 62
