Naomi can run 12 miles in 108 minutes. She is thinking about running in two different races, a 9-mile race and a 13-mile race. A
1 answer:
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Answer:
right-handed gloves and
left-handed gloves were sold.
Step-by-step explanation:
Given: In one month, gloves were sold for a total revenue of
.
right-handed gloves cost and left-handed gloves cost
.
To find: How much of each type of gloves did they sell?
Solution: Let they sell right-handed gloves, and
left-handed gloves.
Now, cost of each right-handed gloves
cost of each left-handed gloves
Total revenue
So, we get
Also, in a month gloves were sold.
So, we get
Now, from we get,
.
Putting in equation
, we get
Now, putting in equation
, we get
Hence, right-handed gloves and
left-handed gloves were sold.
Answer:
(A)Decay
(b)0.8
(c)First Term
(d)
(e)$819.20
Step-by-step explanation:
The exponential function for modelling growth or decay is given as:
,
Where:
Plus indicates growth and minus indicates decay.
For a powerful computer that was purchased for $2000, but loses 20% of its value each year.
(a)Since it loses value, it is a decay.
(b)Multiplier
Its value decays by 20%.
Therefore, our multiplier(1-r) =(1-20&)=1-0.2
Multiplier =0.8
(c)$2000 is our First term (or Initial Value )
(d)The function for this problem is therefore:
(e)Since we require the worth of the computer after 4 years,
t=4 years