Answer:
Lori will have cavity if she brushed for each night.
Step-by-step explanation:
As the question suggests cavities developed varies inversely with the number of seconds spent on brushing.
Lets take the terms as ,where is the constant of proportionality.
And
c = Number of cavities developed each year
t = Number of minutes spent on brushing per night
Now we will plugging the values of the given terms and find the value of ,for this we can re-arrange it as...
and
Now as Lori will increase her brushing time so as the cavity will decrease.
So for this we have been given, and .
As
So as per Paul's observation if Lori brushed for at night she will have cavity on that year.
Answer:
Santosh purchased 4 new and 4 used DVDs.
Step-by-step explanation:
From the information given, as you know that Santosh spent $200 and that the DVD player cost $120, you can say that the new and used DVDs cost $80, which can be expressed as:
15x+5y=80, where:
x refers to the number of new DVDs
y refers to the number of used DVDs
Now, as the statement indicates that Santosh purchased the same number of new and used DVDs, this means that x is equal to y and you can replace y with x and solve for x:
15x+5x=80
20x=80
x=80/20
x=4
According to this, the answer is that Santosh purchased 4 new and 4 used DVDs.
Hey!
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Formula:
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Solution:
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Answer:
The distance between the points is <u>10 units.</u>
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Hope This Helped! Good Luck!
A
Divide and get A
Mark brainliest please
That is a binomial because it simplifies to 5x-9 which has two terms hence the bi