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Math
Arithmetic
Model 1 grade 7
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7th grade Vocabulary Module 1
Terms in this set (10)
Additive inverse
the opposite of a number
Integers
the set of whole numbers and their opposites
Negative integers
an integer less than zero
Opposite
two numbers that are an equal distance from zero on a number line also called additive inverse
Positive integer
an integer greater than zero
Rational number
any number that can be expressed as a ratio of two integers
Repeating decimal
a decimal in which one or more digits repeat infinitely
Set
a group of terms
Subset
a set contained within another set
Terminating decimal
a decimal number that ends or terminates.
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Verified questions
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The length of a rectangle is 4 units greater than its width w. Write an expression for the length of the rectangle.
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A map distance of 5 inches represents 200 miles of actual distance. Suppose the distance between two cities on the map is 7 inches. What is the actual distance between the two cities? Write the rule you used to find the actual distance.
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It costs $12 to attend a golf clinic with a local pro. Buckets of balls for practice during the clinic cost$3 each. How many buckets can you buy at the clinic if you have $30 to spend?
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The projected U.S. population is given for different decades. The projected number of people 65 years of age or older is also given. Find the percentage of people 65 or over and comment on the trend over time. Numbers are in millions of people (Source: 2017 World Almanac and Book of Facts) $$ \begin{array}{|c|c|c|} \hline \text{Year} & \text{Population} & \text{Older Population}\\ \hline 2020 & 334 & 54.8\\ \hline 2030 & 358 & 70.0\\ \hline 2040 & 380 & 81.2\\ \hline 2050 & 400 & 88.5\\ \hline \end{array} $$