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Pre-AlgebraPre-Algebra
Rational NumbersRational Numbers
Lesson 4-6
Write two lists of fractions equivalent to .23
23
46
69
= = = … Numerators and denominators are positive.
= = = … Numerators and denominators are negative.23
–2–3
–4–6
Additional Examples
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Pre-AlgebraPre-Algebra
Rational NumbersRational Numbers
Lesson 4-6
Graph each rational number on a number line.
a.
b. 0.5
c. 0
d.
34–
13
Additional Examples
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Pre-AlgebraPre-Algebra
Rational NumbersRational Numbers
Lesson 4-6
A fast sports car can accelerate from a stop to 90 ft/s
in 5 seconds. What is its acceleration in feet per second per
second (ft/s2)? Use the formula a = , where a is
acceleration, f is final speed, i is initial speed, and t is time.
f – it
a = f – i
t Use the acceleration formula.
The car’s acceleration is 18 ft/s2.
90 – 05
Substitute.=
905 Subtract.=
18= Write in simplest form.
Additional Examples