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VARVARA [1.3K]
3 years ago
14

What type of property is 7+b=b+7

Mathematics
1 answer:
PIT_PIT [208]3 years ago
5 0
7 +b = b +7  is <span>Commutative Property</span>
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What is the surface area of the triangular prism?
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8 0
3 years ago
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5 0
2 years ago
Please Help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
postnew [5]

Let Jenny = J

Let Mica = M

J = M + 4

Now you have to represent 5 years ago

J - 5 = 2*(M - 5)

J - 5 = 2M - 10                Substitute J = M + 4 Into this equation

M + 4 - 5 = 2M - 10        Combine terms on the left

M - 1 = 2M - 10               Add 10 to both sides    

M - 1 + 10 = 2M              Combine one the left

M + 9 = 2M                    Subtract M from both sides

9 = 2M - M              

9 = M                             Answer Miki

J = M + 4                       Substitute Miki's age for M

J = 9 + 4                         Answer Jenny

J = 13

Answer:

Jenny = 13

Mika = 9

4 0
3 years ago
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