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Paraphin [41]
3 years ago
13

Find 12 +13 - (-9)+(-19.4) +3.3

Mathematics
2 answers:
Rina8888 [55]3 years ago
5 0

Answer:

17.9

Step-by-step explanation:

You could use PEMDAS but you don't really need to because this is just adding an subtracting.

Ket [755]3 years ago
3 0

Answer: 17.9

Step-by-step explanation:

25−(−9)−19.4+3.3

=34−19.4+3.3

=14.6+3.3

=17.9

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Karen has $1.70 in coins. Karen has 8 coins, all of which are quarters or dimes.
kumpel [21]

x+y=8 and 25x+10y=170 are the linear equations.

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Step-by-step explanation:

Given,

Worth of coins = $1.70 = 1.70*100 = 170 cents

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1 dime = 10 cents

Let,

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For inequalities, the amount cannot increase number of coins and worth but it can be less, therefore,

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x+y≤8 and 25x+10y≤170 are the inequalities.

Keywords: linear equations, addition

Learn more about linear equations at:

  • brainly.com/question/10570041
  • brainly.com/question/10610299

#LearnwithBrainly

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Step-by-step explanation:

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