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Post Test: Quadratic Relationships
17
Select the correct answer.
Sarah sells fruit trays at a salad shop. Last week, she sold 450 fruit trays for $8 per tray. In previous weeks, she found that for every
$0.85 increase in the price, she sold 15 fewer fruit trays.
Which equation can be used to find Sarah's weekly sales income in dollars, y, after x price increases of $0.85?
ОА.
y = -12.75.2 + 482.51 + 3,600
ОВ.
y = -12.7502 + 262.5+ 3,600
Ос. y =
-12.75.12 + 502.5.1 + 3,600
OD. y = -12.752 + 272.5x + 3,600
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i need more info. are you looked to see there mph? how much they deliver? how far they go?

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

step-by-step explanation:

there are 36 inches in a yard

25 : 36 = 0.69 yards (you can round to 0.70)

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )