Clara wants to bike 112 miles this week. That is 20 miles less than 2 times the number of miles she biked last week. How many miles did she bike last week?(1 point)
Responses
46 miles
46 miles
132 miles
132 miles
264 miles
264 miles
66 miles
Let the number of miles she biked last week be represented by x.
The number of miles Clara wants to bike this week is 2x - 20.
Since Clara wants to bike 112 miles this week, we can set up the equation: 2x - 20 = 112.
Adding 20 to both sides, we get: 2x = 132.
Dividing both sides by 2, we find that x = 66.
Therefore, Clara biked 66 miles last week.
Let's break down the information given in the question.
Let's assume the number of miles Clara biked last week is x.
According to the question, Clara wants to bike 112 miles this week.
It is given that this is 20 miles less than 2 times the number of miles she biked last week.
This can be written as: 2x - 20 = 112
To find x, we will solve the equation.
Adding 20 to both sides of the equation, we get: 2x = 112 + 20
Simplifying the right side, we get: 2x = 132
Now, to isolate x, we divide both sides of the equation by 2: x = 132/2
Simplifying the right side, we get: x = 66
Therefore, Clara biked 66 miles last week.
To find out how many miles Clara biked last week, we need to rearrange the given information and solve the equation.
Let's represent the number of miles she biked last week as "x".
According to the question, 112 miles is 20 miles less than 2 times the number of miles she biked last week.
So, we can write this equation:
112 = 2x - 20
To solve for x, we will isolate the variable by adding 20 to both sides:
112 + 20 = 2x
132 = 2x
Finally, divide both sides by 2 to solve for x:
x = 132 รท 2 = 66
Therefore, Clara biked 66 miles last week.