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Elina [12.6K]
3 years ago
7

3. Which property is represented by 5+ (-8)=-8 + 5? (1 po.

Mathematics
1 answer:
AlexFokin [52]3 years ago
5 0
Commutative property
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Solve by elimination <br> 5x-15y=10<br> 3x-5y=-6
Dovator [93]
Multiply bottom equation by -3 to add and eliminate y’s.

So...

5x-15y=10
+-9x+15y=18

You get -4x=28 so x=-7

Plug in to get y
5(-7)-15y=10
-35-15y=10
-15y=45
So y=-3

Check in other equation
3(-7)-5(-3)=
-21+15=-6

So x= -7 and y= -3
6 0
3 years ago
A baby elephant weighs 1400 pounds, which is 7,437 pounds less than her mother. Write an equations to express the weight of the
DiKsa [7]

Answer:

1400+7437=x

Step-by-step explanation:

x= weight of the mother

7 0
3 years ago
Please help me im almost done with all of my work
Natasha2012 [34]

Answer:

M+R=21

Step-by-step explanation:

M+18=21

M=3

he left 3 magazines out to read

If brainiest is earned its greatly Appreciated

8 0
3 years ago
400 is ten times as much as
Mrrafil [7]
40
Try dividing 400 by ten you'll get 40 (or just remove a zero or decimal point to the left when dividing by 10)
3 0
3 years ago
Write the period that has the number 913
Gala2k [10]
<span>The answer is in the thousands group. Its the way they word the problem that complicates it. 913,256 256 being the ones group 913 being the thousands group. So the name of the period with 913, is the thousands group</span>
4 0
4 years ago
Read 2 more answers
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