Well, we know that Lilly scored 4 more points than Bryson. So we could write that
<span>Lilly's score = Bryson's score plus 4. Or L=B+4 Now we also know that </span>
<span>Lilly's score + Bryson's score = 180. So L+B=180 Now We can substitute in L in the second equation to get B+B+4=180 so B+B=176 and B=88 The we put B into the first equation and find that </span>
<span>L=92.</span>
It would take three and a half hours because for one person it takes alden 6 hrs while it takes anthony seven split it in half between them and a half because it takes his rother an extra hour to do it by himself .
Expand out, this literally just wants you to multiply everything by -1.
so 7*-1 = -7
-c*-1 = c
thus putting them together to get -7+c which is just c-7
7/10 + 1/2
Find common denominator will be 10
7/10+ 1×5/2×5
7/10+5/10
Add numerators keeping same denominator
7+5/10
Simplify
12/10
Reduce fraction
6/5
