Transcript CC GPS Coordinate Algebra

*
EOCT Review
* USATestPrep.com
* campbell
* newton80
*
* A quantity is a an
exact amount or
measurement.
* A quantity can be
exact or approximate
depending on the level
of accuracy required.
*
* Examples:
1 -Convert 5 miles to feet.
2 -Convert 60 miles per hour
to feet per minute.
* 1 mile = 5280 feet
* 5 miles = 5 *5280 feet (does this need to be
exact?)
*
60miles 1hour 5280 feet
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*

hr
60 min
1mile
60*5280 ft

60*1min
*
5280 ft
min
There are situations when the units in an answer
tell us if the answer is wrong.
For example, if the question called for weight
and the answer is given in cubic feet, we know
the answer cannot be correct.
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* The formula for density d is d = m/v
where m is mass and v is volume.
If mass is measured in kilograms and volume is
measured in cubic meters, what is the unit rate
for density?
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* Arithmetic expressions are comprised of
numbers and operation signs.
* Algebraic expressions contain one or more
variables.
* The parts of expressions that are separated by
addition or subtraction signs are called terms.
* The numerical
* factor is called the coefficient.
*
* It has three terms: 4x2, 7xy, and 3.
* For 4x2, the coefficient is 4 and the variable
factor is x.
* For 7xy, the coefficient is 7 and the variable
factors are x and y.
* The third term, 3, has no variables and is
called a constant.
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* How should we approach the solution to this
equation?
*
* Understanding solving equations
* Solve equations and inequalities in one variable
* Solve systems of equations
* Represent and solve equations and inequalities
graphically.
*
* Know the properties of operations
* Be familiar with the properties of equality and
inequality. (Watch out for the negative
multiplier.)
* Eliminate denominators (multiply by
denominators to eliminate them)
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* Solve the equation
6(x + 4) = 2(y + 5) for y.
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* Karla wants to save up for a prom dress.
She figures she can save $9 each week from the
money she earns babysitting.
If she plans to spend up to $150 for the dress,
how many weeks will it take her to save enough
money?
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* This equation can be used to find h, the
number of hours it takes Flo and Bryan to
mow their lawn.
h h
 1
3 6
* How many hours will it take them?
*
A manager is comparing the cost of buying ball caps with the
company emblem from two different companies.
* Company X charges a $50 fee plus $7 per cap.
* Company Y charges a $30 fee plus $9 per cap.
For what number of ball caps will the manager’s cost be the
same for both companies?
* A. 10 caps
* B. 20 caps
* C. 40 caps
* D. 100 caps
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Which graph would represent a system of linear
equations that has multiple common coordinate
pairs?
*A
*C
B
D
*
Which equation corresponds to the graph
shown?
* A. y = x + 1
* B. y = 2x + 1
* C. y = x – 2
* D. y = 3x
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