Q2 (Algebra equations solve for x)

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TEAME CIT

History

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TEAME CIT 8 years, 9 months ago

Published this.

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TEAME CIT 9 years, 4 months ago

Created this as a copy of Q1 (Algebra equations).

Name	Status	Author	Last Modified
Q1 (Simplify algebra equations)	Ready to use	TEAME CIT	06/10/2016 16:13
Q2 (Algebra equations solve for x)	draft	TEAME CIT	06/10/2016 16:13
Q4 (Calculating area using algebraic equations)	Ready to use	TEAME CIT	06/10/2016 16:14
Calculating area and perimeter using simultaneous equations	draft	Vicky Hall	06/02/2018 13:12
Bokstavregning og parenteser 1	draft	Ida Friestad Pedersen	15/07/2016 11:12
Bokstavregning og parenteser 2	draft	Ida Friestad Pedersen	15/07/2016 11:11
Simplify algebra equations	draft	steve kilgallon	24/08/2017 16:02
Simplify algebra equations	draft	steve kilgallon	23/08/2017 11:19
Simplify algebra equations	draft	steve kilgallon	08/08/2016 15:18
Bokstavregning og parenteser 2	draft	Ida Friestad Pedersen	15/08/2016 14:06
Algebra : Solving Linear Equations (2)	Ready to use	Nasir Firoz Khan	21/11/2016 09:46
Simplify algebra equations L1	draft	steve kilgallon	16/10/2016 10:59
Rational Equation..becomes Linear	draft	Clare Lundon	13/10/2016 10:11
Morten's copy of Bokstavregning og parenteser 1	draft	Morten Brekke	13/10/2016 15:13
Bokstavregning og parenteser 1	draft	Morten Brekke	03/11/2017 08:32
Mock exam 1 Simplify algebra equations L1	draft	steve kilgallon	04/11/2017 14:23
Algebra and parenthesis 1	draft	Robert Førland	04/11/2016 23:35
Herleiden met vereenvoudigingsregels	draft	Johan Maertens	11/02/2017 09:16
Rachel's copy of Algebra and parenthesis 1	draft	Rachel Staddon	20/04/2017 15:04
Brackets	draft	Harry Flynn	30/05/2017 13:10
Regina's copy of Mock exam 1 Simplify algebra equations L1	draft	Regina Kobus	07/11/2017 01:48
Simplify algebra equations BY138	Ready to use	steve kilgallon	12/01/2021 10:29
Marte's copy of Bokstavregning og parenteser 1	draft	Marte Bråtalien	12/04/2018 10:42
Amanda's copy of Morten's copy of Bokstavregning og parenteser 1	draft	Amanda Haslemo	09/11/2018 09:22
mengeling veeltermen	draft	Johan Maertens	03/05/2023 14:24
Simon's copy of Q4 (Calculating area using algebraic equations)	draft	Simon Thomas	25/03/2019 09:59

There are 47 other versions that do you not have access to.

Question statement

Solve for $x$ in the following, to 2 decimal places:

Watch the video below for help with the questions:

Solving Equations

Give any introductory information the student needs.

			Name	Type	Generated Value

num1p	list	[ 8, 5, 10, 6, 3, 4, 9, 2, 7 ]
num1n	list	List of 8 items
ans11	number	-17.5
ans21	number	-3
numh	list	List of 15 items
num3p	list	[ 8, 5, 3, 6, 9, 4, 7, 2, 10 ]
num3n	list	List of 9 items
posa	list	[ 5, 3, 8, 7, 4, 6, 9, 2, 10 ]
nega	list	List of 8 items
ans41	number	0.7534246575
ans31	number	4.4482758621
posb	list	[ 9, 6, 3, 2, 8, 4, 5, 10, 7 ]
neg	list	List of 8 items
ans51	number	-1

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
shuffle(2..10)[0..9]

JME function reference

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `list`

[ 8, 5, 10, 6, 3, 4, 9, 2, 7 ]

→ Used by:

ans11
ans21

This variable doesn't seem to be used anywhere.

Parts

Part a) Gap-fill
1. Gap Number entry
  Add
Part b) Gap-fill
1. Gap Number entry
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Part c) Gap-fill
1. Gap Number entry
  Add
Part d) Gap-fill
1. Gap Number entry
  Add
1. Step Information only
Part e) Gap-fill
1. Gap Number entry
  Add

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

$\var{num1p[0]}x + \var{num1p[1]} = \var{num1p[2]}x + \var{numh[0]}$

$x =$ Unnamed gap

Advice

Part 1:

$x$ :

$\frac{(\var{numh[0]}-\var{num1p[1]})}{(\var{num1p[0]}-\var{num1p[2]})} = \var{ans11}$

Part 2:

$x$ :

$\frac{((\var{num1p[7]} \times \var{num1p[6]})-(\var{num1p[4]} \times \var{num1n[2]})}{((\var{num1p[1]} \times \var{num1p[5]})-(\var{num1p[7]} \times \var{num1n[7]})} = \var{ans21}$

Part 3:

$x$ :

$\frac{((\var{num3p[4]} \times \var{num3p[5]})+\var{num3p[6]}+(\var{num3n[4]} \times \var{num3n[5]})-\var{num3p[0]}-(\var{num3p[1]} \times \var{num3n[0]})-(\var{num3n[1]} \times \var{num3n[2]}))} {((\var{num3p[1]} \times \var{num3p[2]})+(\var{num3n[1]} \times \var{num3p[3]})-(\var{num3p[4]} \times \var{num3n[3]})-(\var{num3n[4]} \times \var{num3p[7]}))} = \var{ans31}$

Part 4:

$x$ :

$\frac{(\var{nega[3]}-\frac{\var{nega[1]}}{\var{posa[1]}}+\frac{\var{posa[5]}}{\var{posa[3]}}-\frac{\var{nega[2]}}{\var{posa[6]}})} {(\frac{\var{posa[2]}}{\var{posa[1]}}-\frac{\var{posa[4]}}{\var{posa[3]}}+\frac{\var{posa[7]}}{\var{posa[6]}})} = \var{ans41}$

Part 5:

$x$ :

$\frac{((\var{posb[3]} \times \var{nega[4]}) - (\var{posb[1]} \times \var{posb[5]}))}{((\var{posb[1]} \times \var{posb[4]}) - (\var{posb[3]} \times \var{posb[2]}))} = \var{ans51}$

Give a worked solution to the whole question.

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Part	Test	Passed?
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Information only
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This question is used in the following exams:

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

TEAME CIT 8 years, 9 months ago

TEAME CIT 9 years, 4 months ago

Error in variable testing condition

Error

Warning

Generated value: `list`

Parts

Gap-fill

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Q2 (Algebra equations solve for x)

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

TEAME CIT 8 years, 9 months ago

TEAME CIT 9 years, 4 months ago

Error in variable testing condition

Error

Warning

Generated value: list

Parts

Gap-fill

Generated value: `list`