In total it has to be 180 since a straight line is 180 so i would be 69
Answer:
1
Step-by-step explanation:
Answer:
4 cards
Step-by-step explanation:
Susan has 40 minutes left to make cards. It takes her about 10 minutes to make each card. Since four 10's can go into 40, Susan can make 4 cards in that time period.
To solve this problem you must apply the proccedure shown below:
1. The perimeter of a rectangle can be calculated with the following formula:

2. The width is:

3. Now, you must substitute the values into the formula for calculate the perimeter:

Therefore, the answer is: 