Machuco127
29.01.2021 •
Mathematics
An IT shop sells laptops, tablets and mobile phones.
The composite bar chart shows information on sales over the last three year
800
a) How many laptops were sold in 2017
700
100
600
500
Number sold
b) Work out the total number of mobile
phones sold in the 3 years.
120+220+260=600
400
300
200
100
c) Which of the items had the greatest
increase in sales over the 3 years?
Give a reason for your answer.
tablets had the greatest increase in
salesover 3 years.
Solved
Show answers
More tips
- C Computers and Internet How to Properly Repartition a Hard Drive?...
- A Auto and Moto What Is the Cost of Customs Clearance for a Car in Russia?...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet How to easily and quickly disable Firebug in Gmail and Google Docs...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Mathematics
- M Mathematics Ineed the answer to the question in the...
- M Mathematics Consider the figure below. Line FG is parallel to line JK. Part A:Solve for a justify your answer Part B:Determine m FNT Part C:Determine m...
- M Mathematics 5x(f-29) divided by 7 for f=78...
- M Mathematics |y+3|=7 Absolute value! Help!...
- H History Which igneous American civilization declined mainly due to chronic drought conditions...
Ответ:
a. at zero years of education, income equals $1500
Step-by-step explanation:
The equation for income 'I', as a function of years of education 't' is given by:
Where b is the regression coefficient and a is the intercept.
The intercept is the value assumed by the function for t = 0 years of education:
Since the income function measures income in $1,000s, at zero years of education, income equals $1500