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svp [43]
3 years ago
7

4x+7y= 28 solve for y Not a graphing question

Mathematics
1 answer:
Nuetrik [128]3 years ago
4 0
The answer I got was y=-4/7x +4
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Solve xy − 2 = k for x.
MA_775_DIABLO [31]
Isolate x
So xy - 2 = k
Then
xy = k + 2

x = (k+2)/y
6 0
2 years ago
Mike drove 100 miles in a rental car and was charged $58.00. Jane rented the same car after Mike had rented it and was charged $
timama [110]

Answer:

y= 48 + 0.1x

x= miles driven

Step-by-step explanation:

<u>We need to calculate the fixed and variable cost (per mile) of renting a car. To do that, we will use the high-low method:</u>

Variable cost per unit= (Highest activity cost - Lowest activity cost)/ (Highest activity units - Lowest activity units)

Variable cost per unit= (65 - 58) / (170 - 100)

Variable cost per unit= $0.1 per mile

Fixed costs= Highest activity cost - (Variable cost per unit * HAU)

Fixed costs= 65 - (0.1*170)

Fixed costs= $48

Fixed costs= LAC - (Variable cost per unit* LAU)

Fixed costs= 58 - (0.1*100)

Fixed costs= $48

y= 48 + 0.1x

x= miles driven

7 0
3 years ago
One question please help! Thanks guys in advance!!!
Ede4ka [16]
Y = kx
80 = 16k
k = 80/16 = 5

direct variation

The first 2 choices are corect
5 0
3 years ago
Why is a the y-intercept of the graph of the function y=ab^x
8090 [49]
The y-intercept occurs on a graph when x = 0. Therefore on a graph of y= ab^x when x = 0, y = ab^0 = 1. Therefore the y-intercept is at the point (0,1).
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3 years ago
3. ALGEBRA Marcy Wolfe needs
julia-pushkina [17]
I think it is D
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