I have 7 12 feet of rope and my friend has 3/10 of what we . need to make a jump rope hang up in our back yourd
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What do you mean by "7 12 feet of rope"?
To determine how much additional rope you and your friend need to make a jump rope, we first need to find out the total length of rope required.
To do this, you mentioned that you already have 7 12 feet of rope. This can be written as 7 * 12 or simply 84 feet of rope.
Next, you mentioned that your friend has 3/10 of what you both need. So, we need to calculate 3/10 of the total length of the rope.
To find 3/10 of 84 feet, you multiply 84 by 3/10. To do this, multiply the numerator (3) by the number (84) and then divide by the denominator (10):
(3/10) * 84 = (3 * 84) / 10 = 252 / 10 = 25.2 feet
Therefore, your friend has 25.2 feet of rope.
To determine how much additional rope you need to make a complete jump rope, you subtract your friend's rope length from the total requirement:
Total rope requirement - Friend's rope length = Additional rope needed
84 feet - 25.2 feet = 58.8 feet
So, you and your friend need an additional 58.8 feet of rope to make a jump rope.