Answer:
See answers to parts a and b below.
Step-by-step explanation:
A. Value: y=20+.20x
Best Rent y=30+.10x
B. 20+.20x=30+.10x make equations equal each other by subbing y values.
.10x=10 simplify equation
x=100
check answers by subbing 100 for x in each equation.
y=20+.20(100)
y=20+20
y=40
y=30+.10(100)
y=30+10
y=40
Both equations equal 40, so 100 is the correct number of miles for when Value equals Best Rent.
(-2x + 4y)(3x - 7y) = -6x^2 - 28y^2 + 12yx
5 days * $125 daily fee + $??.?? Deposit = $700
5*125+x=700
625+x=700
x=75
$75 Deposit
I'm not sure what "the rate of change" is
sorry but i hope i helped
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3.) A *the first one*
4.) C *the last one*
Answer:
A
Step-by-step explanation:
6x+3y=33 <=> 2x+y=11<=>4x+2y=22 (1)
4x+y=15 (2)
(1)-(2) <=> y=7
