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andrey2020 [161]
3 years ago
9

What is 5a - (8 - a) + 4a - 10

Mathematics
2 answers:
Anna007 [38]3 years ago
5 0
5a-8+a+4a-10
5a+a+4a-8-10
10a-18 ** I think
podryga [215]3 years ago
5 0
Pretend there is an invisible -1 in front of the parenthesis to distribute, then get rid of the parenthesis, then you can combine like terms.
= 5a - 1(8-a) +4a - 10       
         ^-----^                      <-- negative (-) times (x) a negative (-) equals positive = (+)
= 5a - 8 + a +4a - 10        
     ^---------^----^               <--Combine like terms      
= 5a +a +4a = 10a
= -8 -10       = -18
= 10a -18

Hope this helps!

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which digit 1,634,677 has value this is greater than 10 times the value of the fight digit to its right
kirill115 [55]

Answer:

The ones digit or the First 7 to the left

Step-by-step explanation:

Since 10 times more

so ones place is 7

Tens place is 70

hunreds place is 600

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hundred thousands is 600,000

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So 7

8 0
3 years ago
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yulyashka [42]

Answer:

A = pi*(8 mm)^2 = 64*pi mm^2

Step-by-step explanation:

The formula for the area of a circle is A = pi*r^2, where r is the radius.  Thus, r^2 = (25pi) / pi, or 25, and r = 5 mm.

If we increase this radius by 3 mm, we get the new radius 8 mm.  The area of the new circle will thus be A = pi*r^2, or, in this particular case,

A = pi*(8 mm)^2 = 64*pi mm^2.

8 0
3 years ago
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mojhsa [17]

Answer:

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Step-by-step explanation:

59.5

30.0

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8 0
3 years ago
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Aleksandr-060686 [28]

Answer:

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6 0
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