The four points questions are 5.
Step-by-step explanation:
Total points = 50
Total questions = 15
There are 4 points questions and 3 points questions.
Let,
x be the number of 4 points questions
y be the number of 3 points questions
According to given statement;
x+y=15 Eqn 1
4x+3y=50 Eqn 2
Multiplying Eqn 1 by 3
Subtracting Eqn 3 from Eqn 2
As x variable was used for 4 points questions, therefore,
The four points questions are 5.
Keywords: linear equation, subtraction
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Answer:
<h2>You will ride for 4 hrs 8min</h2>Step-by-step explanation:
What we are expected to solve for that the problem did not expressly state is most likely the number of hours that you could ride for an amount of $65.
firstly we need to model the inequality (equation) for this scenario.
the constant fee= $3 additional fee for helmet
We can now solve for n since the above inequality satisfies the condition presented in the problem statement.
Divide both sides by 15 to find n