Objective: - to solve multiplication equations using the division property of
equality
- to solve division equations using the multiplication property of
equality
Multiplication and Division Equations
How are addition and subtraction related? What about multiplication and
division?
Addition property of equality –
Subtraction property of equality –
Multiplication property of equality –
Division property of equality –
In general what do you notice about all 4 of these?
Write the following as an equation, using y as your variable.
An object on Jupiter weights about 2.6 times its weight on Earth. If a spacecraft
weighs 4914 Newtons on Jupiter, what is its weight on Earth?
Follow along
38x = 760
check:
1.7c = 25.5
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check:
Review:
How do
do II multiply
multiply 55 by
by
How
_1_
5
Keep that in mind and follow along:
_b_
= 120
15
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check:
z ÷ 13 = 650
check:
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With a partner try the following problems
Keep in mind: What operation is being done?
How can I undo that operation?
Am I keeping my equation balanced?
8b = 0.2416
check:
d ÷ 7.5 = 18.4
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_d_
38x = 274.2
0.6
check:
n · 100 = 25
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200 = 80n
check:
f ÷ 22.3 = 6.6
____= ______
_______=_______
____= ______
_______=_______
check:
check:
check: