Answer:
5th example: 28 blocks.
24th example: 123 blocks.
Step-by-step explanation:
Hope this helped!
6)x-7+10 7)3+x+1 8)8x-16 9)x/2-9
we are given
x^2-4x-5
we can use formula
x^2-(a+b)x+ab=(x-a)(x-b)
so, we have
a+b=4
ab=-5
now, we can solve for a and b
and we get
a=5, b=-1
now, we can plug it in formula
x^2-4x-5=(x-5)(x+1) ............Answer
1/3 * 7/9 kg = (1 * 7)/(3 * 9) kg = 7/27 kg
He used 7/27 kg of sugar.
