Answer:
Molly with 15 cookies decorated
Step-by-step explanation:
Turn percentage into decimals.
35%=.35
30%=.30
Sue baked 40 and decorated 35% (40*.35=14)
Molly baked 50 and decorated 30% (50*.30=15)
Answer:
72
Step-by-step explanation:
im pretty sure you just have to do 18*4
5m-n
Just replace m with 4 and n with 9
5(4)-9=20-9=11
Justify means plug answer in and verify
so distribute 8(3-7x)=24-56x
143=7+24-56x
143=31-56x
minus 31 both sides
112=-56x
divide both sides by -56
-2=x
justify
plug it back
143=7+8(3-7x)
143=7+8(3-7(-2))
143=7+8(3-(-14))
143=7+8(3+14)
143=7+8(17)
143=7+136
143=143
true
x=-2