7th Grade Systems of Equations: Substitution & Elimination
Authored by Anthony Clark
English, Mathematics
7th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A farmer has chickens and cows. If the total number of animals is 30 and there are 80 legs in total, how many chickens and cows does he have? Use substitution to solve.
20 chickens and 10 cows
10 chickens and 20 cows
25 chickens and 5 cows
15 chickens and 15 cows
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a school, there are two types of clubs: art clubs and science clubs. If there are 50 students in total and the art clubs have 10 more members than the science clubs, how many members are in each club? Use elimination to solve.
Art clubs: 40 members, Science clubs: 10 members
Art clubs: 25 members, Science clubs: 25 members
Art clubs: 30 members, Science clubs: 20 members
Art clubs: 20 members, Science clubs: 30 members
Tags
CCSS.8.EE.C.8C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A bookstore sells fiction and non-fiction books. If the total number of books is 120 and the fiction books are 20 more than the non-fiction books, how many of each type of book are there? Use substitution to solve.
Fiction books: 50, Non-fiction books: 70
Fiction books: 80, Non-fiction books: 40
Fiction books: 60, Non-fiction books: 60
Fiction books: 70, Non-fiction books: 50
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two friends are collecting stickers. If one friend has 5 more stickers than the other and together they have 45 stickers, how many stickers does each friend have? Use elimination to solve.
First friend: 25 stickers, Second friend: 20 stickers
First friend: 20 stickers, Second friend: 25 stickers
First friend: 30 stickers, Second friend: 15 stickers
First friend: 10 stickers, Second friend: 35 stickers
Tags
CCSS.8.EE.C.8C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car rental company has two types of cars: sedans and SUVs. If there are 40 cars in total and the number of SUVs is twice the number of sedans, how many of each type of car are there? Use substitution to solve.
20 sedans and 10 SUVs
15 sedans and 25 SUVs
10 sedans and 20 SUVs
5 sedans and 35 SUVs
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a fruit market, there are apples and oranges. If the total number of fruits is 100 and there are 20 more apples than oranges, how many apples and oranges are there? Use elimination to solve.
50 apples and 50 oranges
60 apples and 40 oranges
70 apples and 30 oranges
40 apples and 60 oranges
Tags
CCSS.8.EE.C.8C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A concert has two ticket prices: regular and VIP. If there are 200 tickets sold and the total revenue is $3000, with VIP tickets being $20 more than regular tickets, how many of each type of ticket were sold? Use substitution to solve.
150 regular tickets and 50 VIP tickets were sold.
200 VIP tickets and 0 regular tickets were sold.
100 regular tickets and 100 VIP tickets were sold.
50 regular tickets and 150 VIP tickets were sold.
Tags
CCSS.8.EE.C.8C
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