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Elodia [21]
2 years ago
8

What property does the following equation show? 5+7+9=7+5+9​

Mathematics
1 answer:
dsp732 years ago
8 0

Answer: it’s commutative property.

Step-by-step explanation: commutative property is when you switch numbers but the answer still stays the same. Hope this helped!

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Can someone help me with this and show their work and how they found the answer?
Semenov [28]

Answer:

2kg

Step-by-step explanation:

Let the sum of the other 2 bricks be R. Given that the heaviest brick weighs 2/3 times as much as the other 2 bricks in total, then the weight of the heaviest brick H in terms of the weight of the other 2 will be

H = 2/3 * R

= 2R/3

Given that the 3 bricks weigh 5kg in total then,

2R/3 + R = 5

Multiply through the equation by 3

2R + 3R = 15

5R = 15

Divide both sides by 5

R = 15/5

= 3

The weight of the heaviest brick is 2R/3. Since R = 3, the heaviest block weighs

= 2 * 3/3

= 2kg

4 0
3 years ago
If one quarter (25 cents) is 25% of a dollar, what percent is 23 cents?
Ugo [173]
You need to apply the same reasoning.
25 cents is 25% of a dollar because they are 25 out of 100, that is 25/100 = 25%
For 23 cents is exactly the same reasoning:
23 cents is 23% of a dollar <span>because they are 23 out of 100 cents, that is 23/100 = 23%</span>
5 0
3 years ago
A bin of winter hats on clearance contains 6 green caps, 7 blue caps, and 9 red caps If you pick one without looking, what is th
SCORPION-xisa [38]

Answer:

Since it is the case of independent the answer will be 6/22

7 0
3 years ago
Make a table of values for: - 4x + 8y = 16
jonny [76]
Thx so much 8th grade math is so hard and I’m stuck on like ever question I get
8 0
3 years ago
Read 2 more answers
PLEASE HELPP!! 40 points!
Kazeer [188]
2
3
2
4
I hope this helps!
Extended response is in order
5 0
3 years ago
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