40 POINTS 2 questions
2 answers:
Answer:
First Question: A
Second Question: A
Step-by-step explanation:
First question
The trick is to be able to copy and place the graph so that the two coordinate systems are the same. Desmos is very good at that kind of thing. The graph is given to you on the right upload.
From this you can see that the points that solves the inequalities is anything to the left and above the point (4.8,0.4) which is marked. Therefore the answer is DACK which is A
Part B
The problem is in the testing. You can build 20 children's bikes and 6 adult bikes in less than 120 hours.
Building:20*4 + 6*6 = 80 + 36 = 116 hours. that's less than 120 so you're good
Testing: 20 + 6*4 = 80 + 24 = 104 hours. That's not less than 100.
The answer is A
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Hello and Good Morning/Afternoon
<u>Let's take this problem step by step</u>:
<u>To find the rate of change is essentially like finding a line's slope</u>:
⇒ the <em>x-values</em> are the <em>number of sodas</em>
⇒ the<em> y-values </em>are the <em>total costs</em>
<em> ⇒ choose</em> two sets of coordinates and find the slope
<u>Let's put that into action</u>
- Choose any two points
⇒ (24, 18)
⇒ (28, 21)
- Calculate Slope
<u>Since the rate of change is total cost over number of sodas</u>
⇒ <em>unit is '</em>total cost/number of sodas'
<u>Answer: 3/4 total cost/number of sodas</u>
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Hope that helps!
#LearnwithBrainly
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