SOLUTION: I am needing help with this verbal problem please read entire thing to the bottom as is a little long and Thank you for you help. a. when x=75 c=2x+20 =2(75)+20 =1

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Question 377618: I am needing help with this verbal problem please read entire thing to the bottom as is a little long and Thank you for you help.
a. when x=75
c=2x+20
=2(75)+20
=150+20
=170
we have the ordered pair(75,170)

b.when x=300
c=2x+20
=2(300)+20
=600+20
=620
we have the ordered pair(300,620)
c. when x=1000
c=2x+20
=2(1000)+20
=2000+20
=2020
WE HAVE THE ORDERED PAIR (1,000,2020)
In the example, find the number of units produced when the total cost is (a)$430, (b)$700 and (c)$1,400. write the answers as ordered pairs. I am really confused as to how to do this and the steps to take to do this. I would really appreciate some help on this.
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi

c=2x+20

Can only assume that x is the number of units and c is the cost of producing them.

 (a)$430  

$430 = 2x + 20

$410 = 2x

205 = x, the number of units costing $430  (205,430)

(b)$700  c = $700

$700 = 2x + 20

$680 = 2x

340 = x, the number of units costing $700 (340,700)

(c)$1,400  c =$1400

$1400 = 2x + 20

$1380 = 2x

690 = x the number of units costing $1400 (690,1400)

 

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