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stealth61 [152]
3 years ago
11

Sterling plants a tree that is 4 3/4 feet tall. One year later, the tree is 5 2/5 feet tall. How many feet did the tree grow?

Mathematics
1 answer:
KIM [24]3 years ago
5 0
4 3/4 is equal to 19/4, while 5 2/5 is equal to 27/5. Now, we need to find a common denominator. Let's go with 20.
Multiply the top and bottom of the first equation by 5/5, and the second by 4/4. You get 95/20 and 108/20.
Find the difference. 108/20-95/20=13/20
You cannot simplify this fraction further because 13 is a prime number. Therefore, the tree grew 13/20 feet.

Hope that helped you!
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Express 3.3.3.5.5 using exponents
nadya68 [22]
I assume you mean 3*3*3*5*5 it would be 3^3 times 5^2. thats as simplified as i can make it. hope this helps! if anyone knows a better way to put these please post.
7 0
3 years ago
Simplify the expression. (3.5x - 5) + (7.2x + 10)
Andru [333]

Answer: 10.7x + 5

Step-by-step explanation:

(3.5 + 7.2)x + (-5 + 10) = 10.7x + 5

8 0
3 years ago
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shepuryov [24]
Yeah I’m pretty sure you’re right
4 0
3 years ago
The perimeter of a rectangle is equal to 20. If the length is tripled and the width is doubled, the new perimeter is increased b
valkas [14]

16 inches in the length

3 0
3 years ago
Please its very urgent :( Name five whole numbers that can be expressed as the difference of two perfect squares. Show the math!
Tatiana [17]

Answer:

9, 17, 3, 1600, 11

Step-by-step explanation:

Difference of two perfect squares:

a^2-b^2=(a-b)(a+b)

It seems that you want some

x=a^2-b^2, x \in \mathbb{Z}_{\ge 0}

Note: there's no official symbol for the set of whole numbers, I've already seem \mathbb{W}, \mathbb{Z}^+, as well.

5^2-4^2=25-16=9

There are infinitely many numbers that can satisfy the condition given.

The only condition is that a\geq b, once we are considering whole numbers and not integers.

x_{1}=5^2-4^2=25-16=9

x_{2}=9^2-8^2=81-64=17

x_{3}=2^2-1^2=4-1=3

x_{4}=50^2-30^2=2500-900=1600

x_{5}=6^2-5^2=36-25=11

3 0
3 years ago
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