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o-na [289]
3 years ago
15

Solve the equation using the distributive property and properties of equality.

Mathematics
2 answers:
horsena [70]3 years ago
8 0

Answer:

a=8

Step-by-step explanation:

If we're using the distributive property, we should  first open parentheses by multiplying -5*a and -5*3

-5*a= -5a

-5*3= -15

Now, we have the equation: -5a-15= -55

Add fifteen to both side:

-5a= -40

a=8

lubasha [3.4K]3 years ago
7 0

Answer:

a = 8

Step-by-step explanation:

-5(a + 3) = - 55

- 5a - 15 = - 55

55 - 15 = 5a

5a = 40

a = 40 : 5

a = 8

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Answer:

488

Step-by-step explanation:

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Add them together: 374 + 114 = 488

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2 years ago
I need help with question number 8. Someone please help me!
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Let
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zlopas [31]

Answer:

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Answer:

It is rotated by 72 degrees.

Step-by-step explanation:

  • Since it is a regular polygon,

        when u connect all the corners of it to the middle of the polygon, they       will meet at a point i.e, CENTER.

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Because,

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so, for 12 minutes it should be rotated by 12 times 6 ( 12*6) = 72 degrees)

  • So, after 12 minutes it will be rotated by 72 degrees.
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