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meriva
3 years ago
13

I need to know if the answer to number 9. Is correct

Mathematics
1 answer:
slava [35]3 years ago
8 0
The answer to number 9 would be 43. 

Since it tells you that there is a straight angle that would equal 180. So I added up 61 30 and 46. I got 137. Then subtracted 137 from 180 and got 43.
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Step-by-step explanation:

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S_A_V [24]

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Step-by-step explanation:

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2 years ago
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5(3+t)-3(t+1) I don't understand how to do this problem.
shtirl [24]
Okay, just break it up so you're not overwhelming yourself or anything :)
So here, do it in steps-

Let's do 5(3 + t) first:
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Now onto -3(t + 1):
Again, just multiply -3 by t and 1. This will come out to: -3t - 3.

*Note: the 3 is negative because it's "MINUS 3" in the original equation and remember that any number times a negative, if it isn't negative itself, will turn out to be negative.... (aka "-" x "-" = "+" | "+" x "+" = "+" | "-" x "+" = "-")*

ANYWAY
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15 - 3 = 12
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12 + 2t is your final answer. Hope that helps! :)
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2 years ago
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Serga [27]
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hope it hlps ^-^

 
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Step-by-step explanation:

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