I want to say that shows a decreasing interval, since it is going downwards.
Answer: There are 6 pieces of cloth are rectangles and 9 pieces of cloth are triangles.
Explanation:
Since we have given that
For every 5 pieces of cloth, 2 are rectangles
So, remaining piece will be of triangle so,

3 are triangles.
Ratio of rectangles to triangles is 2:3.
Now, she needs 15 pieces of cloth to complete her scarf,
So, Number of rectangles is needed is given by

Number of triangles is needed is given by

Hence, there are 6 pieces of cloth are rectangles and 9 pieces of cloth are triangles.
Answer:
0.67, 0.68, 0.69, 0.7, 0.71. (67/100, 68/100, 69/100, 70/100, 71/100)
Step-by-step explanation:
A rational number is a number that can be expressed as a fraction.
2/3 is approximately equal to 0.66.
4/5 is equal to 0.8
Thus, we just need to find 5 numbers between 0.66 and 0.8.
Some numbers that you could use are: 0.67, 0.68, 0.69, 0.7, 0.71
Hope this helps :)
Mario's mistake is made when doing reciprocal.
7 / (2/3) =
I cannot divide by 2/3, but if I do reciprocal, I can multiply by 3/2. The seven comes first, so it should not be flipped.
Mario's mistake was when he flipped the 7 (or 7/1) to 1/7.
The answer is c.
I took 130 and multiplied by 1.7 (.7 because of the mark up and 1 because I don't want to add the original back to the answer) and I got 221
You could also take 130 times .7 then add 130 to get the same answer.
I hope this helps.