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3 years ago

Which equation exemplifies the commutative property of multiplication??

Mathematics

2 answers:

Studentka2010 [4]3 years ago

5 0

3: 12x1=1=12 because you’re changing the order of numbers you’re multiplying but the product stays the same

allsm [11]3 years ago

5 0

Answer: 3: 12x1=1x12

Step-by-step explanation:

An operation is said to be commutative if the answer to such mathematical operation remains the same no matter the way the variables are arranged. Commutative law is only true under operation addition and multiplication. For example, given two variables A and B, A and B are said to be commutative if

1. A+B = B + A (addition law)

2. AB = BA (multiplicative law)

Applying this to the question, the equation 12×1 = 1×12 exemplifies the commutative property of multiplication because the arrangements of the numbers does not affect the values to answers at both sides of the equation.

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How tall is a tree which is 15 feet shorter than a pole that is 3 times as tall as the tree?

Citrus2011 [14]

<h2>Height of tree is 7.5 feet</h2>

Step-by-step explanation:

Let t be the height of pole.

Given that the tree is 5 feet shorter than a pole.

Height of pole = t + 15

Also given that the pole is 3 times as tall as the tree.

Height of pole = 3t

So we have

t + 15 = 3t

2t = 15

t = 7.5 feet

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3 years ago

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A sphere has a volume of V=900 in cubed. What is the surface area?

ycow [4]

First, we must solve for the radius of the sphere:
V= $\frac{4}{3}$ $\pi$ $r^{3}$
r=(3 $\frac{V}{4 \pi }$ ) $^{ \frac{1}{3} }$
r=(3* $\frac{900}{4 \pi }$ ) $^{ \frac{1}{3} }$
r≈5.99

Second, we must solve for surface area:
A=4 $\pi$ $r^{2}$
A=4* $\pi$ * $5.99^{2}$
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3 years ago

The Larger of two numbers is 27 more than the smaller. When added together , the sum of the larger number and five times the sma

Genrish500 [490]

Answer:

Small no. is 15

Larger no. is 15 + 27 = 42

Step-by-step explanation:

Let the small no. be x

Larger no. will be x + 27

5x + x + 27 = 117

6x + 27 = 117

6x = 117-27

x = 90/6

x = 15

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2 years ago

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Someone is answering for you ! But good luck and try your best !

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