Step-by-step explanation:
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Answer: 10
<u>Step-by-step explanation:</u>
÷
= ÷
= ÷
= ÷
= x
=
= 10
Answer:
x=1/2
Step-by-step explanation:
-2x+6-2x-3=1
-4x+3=1
-4x= -2
x=2/4=1/2
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Answer:
B. When the amount of lemonade produced is 10 gallons, the cost is increasing at a rate of $1.15 per gallon.
Step-by-step explanation:
For C(x) = (dollar cost of producing x gallons of lemonade), the derivative C'(x) has units of dollars per gallon. It is the rate of change in cost when x gallons have been produced.
Then C'(10) is the rate of increase of cost, in dollars per gallon, when 10 gallons have been produced. (matches choice B)
It took Andre and Lin 1.5 hours for them to meet.
Speed is the ratio of distance travelled to total time taken. Speed is given by:
Speed = distance/time
Let d₁ represent the distance covered by Andre at time t and d₂ represent the distance covered by Lin at time t.
Hence:
5 = d₁/t
d₁ = 5t
3 = d₂/t
d₂ = 3t
Andre and Lin are 12 miles apart, hence:
d₁ + d₂ = 12
5t + 3t = 12
8t = 12
t = 1.5 hours
It took Andre and Lin 1.5 hours for them to meet.
Find out more on speed at: brainly.com/question/3004254