(15/r) - 1...when r = 5
(15/5) - 1 =
3 - 1 =
2 <==
D - Broker A’s commission will be $10.24 less than Broker B’s.<span>
</span>
Answer:
C)
Step-by-step explanation:
The one with the line that has a steep positive slope. (The slope is the x-coefficient, 3.5. This means the line goes up 3.5 units for each unit it goes to the right.)
Y=mx+c since its at constant rate
at (30,2)
30=m2+c-----(1)
at(12,3)
12=m3+c-----(2)
by multiplying (2)by 2.5,
30=7.5m+2.5c-----(3)
by comparing (1) and (3)
2m+c=7.5m+2.5c
5.5m+1.5c=0
5.5m=-1.5c
m=-1.5/5.5c----(4)
sub 4 into 1,
-6/11c+c=30
c=66
m=-1.5/5.5*66=-18
Equation : y=-18x+66
u can try substituting back 2min and 3 mins to verify it works
Answer : 15
to find the scale you divide. 45/3 = 15.
this gives you the scale 15
i don’t know how else to explain it but i hope this helps
