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cupoosta [38]
3 years ago
14

What related number sentence shows the commutative property addition 3+9=12

Mathematics
1 answer:
Dafna1 [17]3 years ago
6 0
The related number sentence that shows the commutative property addition for the equation 3+ 9 + 12 is 9 + 3 = 12

Please take note, the commutative property of addition is
a + b = c
b + a = c
a + b = b + a

Commutative originates from the word move around or commute, therefore, commutative property refers to the act of moving stuff around. In addition, the rule is a + b = b + a; wherein from the example above, means 9 + 3 = 3 + 9. They want to say that the computation uses the Commutative Property, if at any time, a computation depends on moving stuff around
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What is 4.58+y=2.5? Thanks!
zhenek [66]

Isolate the y. Note the equal sign. What you do to one side, you do to the other. Subtract 4.58 form both sides

4.58 (-4.58) + y = 2.5 (-4.58)

y = 2.5 - 4.58

y = -2.08

-2.08 is your answer

hope this helps

4 0
3 years ago
Find the length of the segment indicated. Round your answer to the nearest tenth if necessary.
alukav5142 [94]

Answer:

x=5

Step-by-step explanation:

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3 0
3 years ago
Pls be right will give brainliest :3
Vedmedyk [2.9K]
A:5

I hope this helps you
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7 0
2 years ago
Derek uses a 136 cm flat steel bar that weighs 4 kg to make rack in the garage. Determine the weight of a 170 cm steel bar
Bumek [7]

The weight of a 170 cm steel bar will be 5 Kg

Step-by-step explanation:

Derek uses a 136 cm flat steel bar that weighs 4 kg to make rack in the garage.

1 kg = 1000 gm

So the weight of 1 cm steel bar will be  \frac{4 }{136} kg

Weight of 1 cm bar = \frac{4000}{136} gm

Let the weight of a 170 cm steel bar will be \frac{4000 }{136} × 170 gm

⇒4000 × 1.25 gm

⇒ 5000 gm

⇒5 kg

Hence, the weight of a 170 cm steel bar will be 5 Kg

4 0
3 years ago
Find the mode, median, and mean of the following data and match them with their appropriate result provided below 3,12,11,7,5,5,
WARRIOR [948]

Answer:

Mean: 6.6

Mode: 5

Median: 5.5

7 0
2 years ago
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