Answer: x=- 17 / 8
Step-by-step explanation:
1
0
(
+
1
)
=
2
−
7
{\color{#c92786}{10(x+1)}}=2x-7
10(x+1)=2x−7
1
0
+
1
0
=
2
−
7
{\color{#c92786}{10x+10}}=2x-7
10x+10=2x−7
2
Subtract
1
0
10
10
from both sides of the equation
3
Simplify
4
Subtract
2
2x
2x
from both sides of the equation
5
Simplify
Answer:
Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.
Step-by-step explanation:
Let 
denote the number of rafts seating 3 people and 
the number of rafts seating 5 people. The total number of rafts is 13, so 
. We can also assume that every raft is filled to the brim (it isn't stated explicitly though, but it's probably the intention of the question maker), so 
.
It's always a good idea to put these equations under each other:
We can subtract the first equation three times from the second one to obtain 
Now, substitute this found value for into 
and we see that 
. We are now done: Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.
Answer:
B
Step-by-step explanation:
-4+4=0
If the temperature starts at -4 four and increases by 4, the temperature will be 0.
