Solving proportions
Flashcard
•
Mathematics
•
7th - 8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
2.
FLASHCARD QUESTION
Front
How do you solve a proportion?
Back
To solve a proportion, cross-multiply the two ratios and then solve for the variable.
3.
FLASHCARD QUESTION
Front
What is the cross-multiplication method?
Back
The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio.
4.
FLASHCARD QUESTION
Front
Back
x = 21.
5.
FLASHCARD QUESTION
Front
What is the scale factor in dilation?
Back
The scale factor is the ratio of the length of a side of the image to the length of the corresponding side of the original figure.
6.
FLASHCARD QUESTION
Front
If a segment is 3 units long and is dilated by a factor of 5, what is the new length?
Back
The new length is 15 units.
7.
FLASHCARD QUESTION
Front
What does it mean to dilate a point?
Back
To dilate a point means to change its position based on a scale factor relative to a center point.
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