Exchange : 63m = 6300 cm; 56m21cm= 5621cm
So the lengths of the ribbon will be left is : 6300 - 5621 = 679cm = 6.79 m
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▹ Answer
<em>6(1-r)</em>
▹ Step-by-Step Explanation
8 - (6r + 2)
8 - 2(3r + 1)
2(4 - (3r + 1))
2(4 - 3r - 1)
2(3 - 3r)
2 * 3(1 - r)
6(1 - r)
Hope this helps!
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Solving a <em>system of equations</em>, it is found that since the <u>quadratic equation has two positive roots</u>, they can be the values of the length and the width, and the design is possible.
The perimeter of a <u>rectangle of length l and width w</u> is given by:

The area is:

In this problem, perimeter of 63.5 m, hence:



Area of 225 m², hence:



Which is a quadratic equation with coefficients
.
Then:



Since the <u>quadratic equation has two positive roots</u>, they can be the values of the length and the width, and the design is possible.
A similar problem is given at brainly.com/question/10489198
Answer:
The annual interest rate is 5.89%.
Step-by-step explanation:
Principal = $50,000
Interest = $9,375
Amount = Principal +interest
Amount = $50,000+$9,375
Amount = $59375
Time = 3 years
We are supposed to find the rate of interest
Formula : 



![\sqrt[3]{1.1875}=(1+r)](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1.1875%7D%3D%281%2Br%29)





Hence The annual interest rate is 5.89%.