Eric noticed that his basil plant grows 5 cm every day. he starts recording the height when the plant is 22 cm tall. how many days has he been recording the growth of the plant, if it is now 62 cm tall? eric sets up and solve the equation shown. what does the solution 8 mean?

y = 5x + 22
62 = 5x + 22
40 = 5x
x = 8

8 days

Step-by-step explanation:

If Eric's basil plant grows 5 cm per day and he records the height when it is 22 cm tall. The plant grows until it is 62 cm.

Let y be the the height of the plant at 62 cm and x be the number of days that he has been recording. We can multiply the growth per day, which is 5, to the number of days it has grown and add the starting growth. Therefore the equation will lool like this:

We can simplify the equation because we know that y=62:

Therefore we can solve for x:

The number of days Eric has been recording the plant growth is 8 and his analysis is correct.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.