Open Up - Grade 8 - Mathematics - Unit 7 - Lesson 4

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Last updated over 2 years ago
13 Questions
1
1.
Evaluate:

100
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2.
Evaluate:

\frac{10^3}{10^3}
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3.
Evaluate:

102 + 101 + 100
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4.
Evaluate:

102 + 101 + 100
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5.
Write each expression as a single power of 10.
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6.
Write each expression as a single power of 10.
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7.
Write each expression as a single power of 10.
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8.
Write each expression as a single power of 10.
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9.
Write each expression as a single power of 10.
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10.
The Sun is roughly 102 times as wide as the Earth. The star KW Sagittarii is roughly 105 times as wide as the Earth. About how many times as wide as the Sun is KW Sagittarii?
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11.
Bananas cost $1.50 per pound, and guavas cost $3.00 per pound. Kiran spends $12 on fruit for a breakfast his family is hosting. Let b be the number of pounds of bananas Kiran buys and g be the number of pounds of guavas he buys.

Rearrange the equation so b is the independent variable.
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12.
Bananas cost $1.50 per pound, and guavas cost $3.00 per pound. Kiran spends $12 on fruit for a breakfast his family is hosting. Let b be the number of pounds of bananas Kiran buys and g be the number of pounds of guavas he buys.

Rearrange the equation so g is the independent variable.
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13.
Lin’s mom bikes at a constant speed of 12 miles per hour. Lin walks at a constant speed \frac{1}{3} of the speed her mom bikes.

Sketch a graph of both of these relationships.
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