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fenix001 [56]
3 years ago
15

The average retail price in the spring of 2009

Mathematics
1 answer:
e-lub [12.9K]3 years ago
5 0

The linear function represented by the table illustrated has :

  • Slope value = - 1221
  • Slope gives the rate of change. Here, price of vehicle decreases by $1221 per year.
  • Retail value of vehicle will be $11273 after 7 years.

General form of a linear equation :

  • y = mx + b
  • Where ; slope = m ; b = intercept
  • Age = x ; value = y

  • The slope = change in y ÷ change in x
  • Slope = (16157 - 17378) ÷ (3 - 2) = - 1221
  • The value of the slope means that, the retail price of the car decreases by $1221 per year.

To obtain the intercept, b :

  • Choose a pair of x and y values ; (2, 17378)
  • 17378 = - 1221(2) + b
  • 17378 = - 2442 + b
  • 17378 + 2442 = b
  • b = 19820

The linear relationship given by the table is :

  • y = - 1221x + 19820

Retail price for a 7-year old car ::

  • x = 7
  • y = - 1221(7) + 19820
  • y = -8547 + 19820
  • y = 11273

Therefore, the retail price of a 7-year old car is $11273.

Learn more: brainly.com/question/18405415

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likoan [24]

Answer:

x = 3 and x = \frac{9}{2}

Step-by-step explanation:

(a)

2(5x - 3) = 24 ( divide both sides by 2 )

5x - 3 = 12 ( add 3 to both sides )

5x = 15 ( divide both sides by 5 )

x = 3

(b)

5(2x + 1) = 50 ( divide both sides by 5 )

2x + 1 = 10 ( subtract 1 from both sides )

2x = 9 ( divide both sides by 2 )

x = \frac{9}{2}

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sergey [27]

The value of y in the triangle is 6°.

<h3>How to calculate the value of y in the triangle?</h3>

Firstly, it's important to note that a triangle has the total angles of 180°.

Based on the information, the triangle has interior angle measures of 11y, 10y + 10°, and 10y - 16º.

The value of y in the triangle will be illustrated thus:

11y + 10y + 10 + 10y - 16 = 180

31y - 6 = 180

31y = 180 + 6.

31y = 186

Divide.

y = 186 / 31

y = 6

The value of y is 6.

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What's the value of x <br><br><br><br> (Middle School)
Elan Coil [88]
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In Lixue’s garden, the green pepper plants grew 5 inches in 34 month. At this rate, how many feet can they grow in one month? (L
beks73 [17]

Answer:

<h2>0.15 inches per month</h2>

Step-by-step explanation:

step one:

This problem is focused on the growth rate of a plant.

given data

the plants grow 5 inches in 34 months

and also that 1 month= 4 weeks

step two:

We can still say that

if 34 months see a growth of 5 inches

then 1 months will be X inches

cross multiply we have

X= 5/32 inches

step three:

converting this number to decimal we have

X= 0.15 inches per month

Therefore the growth rate would be

0.15 inches per month

5 0
3 years ago
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