Practice Practice Exercises (5) - Simultaneous Equations - IB 10 Mathematics

Practise this section

10 questions

Flashcard drill
4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Solve using substitution: x + y = 7; 2x - y = 4.
Show hintHide hint
Rearrange the first equation for y.
Question 2.
Solve using elimination: 2x + 4y = 10; x - 2y = 1.
Show hintHide hint
Align coefficients to eliminate a variable.
3Question 3.
What is the first step in the substitution method?
- Rearranging one equation
- Graphing the equations
- Adding the equations
Show hintHide hint
Think about what we do to replace a variable in an equation.
4Question 4.
True or False: The elimination method involves nullifying a variable.
- True
- False
Show hintHide hint
Consider what happens when we combine the equations strategically.
Question 5.
Calculate the price of each item sold at a flea market: If a vendor sells hats for $15 and shirts for $20. If 4 hats and 3 shirts cost $90, and 2 hats and 5 shirts cost $110, find the prices.
Show hintHide hint
Form equations based on costs and quantities.
Question 6.
A farmer has chickens and cows. If he has a total of 20 animals and he counts 56 legs, how many of each animal does he have?
Show hintHide hint
Let c be chickens and h be cows; formulate based on animals and legs.

6 more questions in this section. Enroll free to practise them all.