Answer:

Step-by-step explanation:
Let n = number of notebooks
and f = number of fodders
You have a system of two equations:


Jenna bought
.
Check:

OK.
Answer:
Unit rate of people per book = 2.5
Step by step explanation:
Given:
Number of peoples = 
Number of books = 
Their ratios = 
We have to find the unit rate of people per book.
To find out the unit rate of people per book we have to divide the total number of peoples by the total number of books.
Or
For this we will follow the unitary method:
For
book there are
persons.
For
book there will be
persons.
So,
The numeric value =
=
There are 2.5 people per book and that it also the unit rate of people per book.
Answer:
The option with the best deal is 216 diapers for $39.98
Step-by-step explanation:
Sally is shoping for diapers
Sally first sees a box which contains 216 diapers at $39.98
She also sees a second box with 88 diapers for $24.99
To know which option that has the best deal for diapers we have to calculate the amount of 1 diapers in each of the boxes
Box 1
216 diapers= $39.98
1 diaper= x
Cross multiply
216x= $39.98
x= 39.98/216
= 0.19 cents for 1 diapers
Box 2
88 diapers= $24.99
1 diaper= x
Cross multiply
88x= $24.99
x= 24.99/88
= 0.28 cents for 1 diaper
Hence the option with the best deal is 216 diapers for $39.98, this is because it is more cheaper.
Answer:
the answer is c
Step-by-step explanation:
45% of 1500=675
38% of 1500=570
675+570=1245
1500-1245=255
so if it was three four hours and he took four five of the time it will be all day for take away for 0/0