Answer:
29
Step-by-step explanation:
18+3|6-25|-11
21+19-11
29
In order to do this, you need to use the equation:
distance=rate x time
So if you want to find out how long it will take you plug 63 miles into the equation.
63 miles=Rate x Time
You want to find out how long so you need the rate.
You can find the rate from the first sentence.
21miles=Rate X 4 hours
Rate=21/4 miles per hour
Plug this into the original equation.
63=(21/4)(time)
Time=12 hours
Answer:
A.
Step-by-step explanation:
That is a translation of 3 units left and 6 units down.
y=2x-3 an x+y=3
subsitution
since y=2x-3, put (2x-3) wherever you see y
put taht in the other equation
x+y=3
x+(2x-3)=3
x+2x-3=3
3x-3=3
add 3 to both sides
3x=6
divide by 3
x=2
subsitute back
y=2x-3
y=2(3)-3
y=6-3
y=3
so the solution set in (x,y) form is (2,3)
The sum of 20 and 21 is 41
