He spends 45 on wood so that doesn't change
this is a loss so -45
then 22 for each bowl so +22 times number of bouls represented by b so
+22b
f(b)=22b-45
profit depends on number of bowls he sells
Answer:
i think its D but sorry if im wrong !! <3
Step-by-step explanation:
R=train speed
p=plaane speed
t=time
d=st
100=tr
350=pt
p=4r-20
ok so 100 times 3.5=350
times 1st equaton by 3.5
350=3.5tr
350=pt
sub
3.5tr=pt
divide both sides by t
3.5r=p
sub p=4r-20
3.5r=4r-20
minus 3.4 from both sides
0=0.5r-20
add 20
20=0.5r
times 2
40=r
sub
p=4r-20
p=4(40)-20
p=160-20
p=140
plane=140kmph
train=40kmph
1.) 32 start root 2 end root
2.) -5 start root 5 end root
3.) 3 start root 7 end root + 7 start root 6 end root
4.) start root 10 end root + start root 6 end root
hope this helped :)
