SUPERMATHS4

miércoles, 24 de enero de 2018

For my students of 4º ESO A:

HOMEWORK

HOMEWORK for next monday:

For 4º ESO B

Just watch the following two videos

For 4º ESO A

Do these world problems

1. More than 450 students went on a field trip. Ten buses were filled and 5 more students traveled in a car.

a) Write an inequality to represent the situation. Be sure to define your variable.

b) Solve the inequality to find the minimum number of people on each bus.

2. You need to buy some pencils and an eraser. You can spend no more than $5. The eraser costs $1 and the pencils cost $0.25 each

a)Write an inequality to represent the situation. Be sure to define your variable.

b) Solve the inequality to find the maximum number of pencils you can buy.

3. Four times the sum of a natural number and 15 is at maximum 120. Let x represent the number. Find all possible values of x.

Watch the video

Graphing a system of linear inequalities

Solve graphically the next system of linear inequalities:

y < - x + 1

y > x + 3

Remenber, today you have to do 5 questions of the exam that appear in the following
online page:

If you want to rewiev the contents of the REAL NUMBERS and ALGEBRA parts in the exam of thursday:

Real numbers

Radicals I

NO MATHS!! Just for fun ( an amazing way to memorize The Periodic Table):

VOLUNTARY HOMEWORK for next week:

Linear inequalities:

Quadratic inequalities:

Worksheet 2

You can give them to me till next friday

Inequations

Video: Solving First Grade Inequations

Video: Solving Quadratic Inequations

Online Unit: Inequations

And. just for fun, using inequalities: What animal Are you?

And, just for fun without using inequalities: Choose a Key