Answer:
Step-by-step explanation:
According to the given data:
A particular beach is eroding at a rate of 4 centimeters per year. A realtor converts this rate to millimeters per day
10 mm = 1 cm
Now convert 4 cm into mm
4 cm= 4*10 mm
4 cm= 40 mm
There are 3365 days in 1 year
Rate to millimeters per day = 40 mm in 365 days
= 40/365 mm per day
= 8/73 mm per day
Divide the term.. We get,
= 0.109589 mm per day .
Can you please show the worksheet or write neater please
This question belongs to simple algebric equation, where we need to add or subtract fractions by finding a common denominator.
Given total hours = 120
Number of hours tutored for 1st week =2 1/3 hours = 7/3 hours
Number of hours in the 2nd week = 3/2 = 1.5 hours
Let the number of more hours she needs to teach be x
![\frac{7}{3} + \frac{3}{2} + x = 20](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B3%7D%20%2B%20%5Cfrac%7B3%7D%7B2%7D%20%2B%20x%20%3D%2020)
= ![\frac{14+9+6x}{6}= 20}](https://tex.z-dn.net/?f=%5Cfrac%7B14%2B9%2B6x%7D%7B6%7D%3D%2020%7D)
23 + 6x = 120
6x = 97
x = 16.167
Hence Kiara needs 16.167 more hours.
And this belongs to a part-whole problem, because the time she still needs to tutor is unknown.
Distributive is
a(b+c)=ab+ac
revers
ab+ac=a(b+c)
a is a common factor
find common factor of 4d and 8
4d=2 times 2 times d
8=2 times 2 time s2
commn factor is 2 times 2=4
4d+8
(4)(d)+(4)(2)
(4)(d+2)
4(d+2)