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bazaltina [42]
2 years ago
7

3. Adult train tickets cost $25, student tickets costs $15 and child tickets cost $10. If a group of a

Mathematics
1 answer:
Hunter-Best [27]2 years ago
8 0

Step-by-step explanation:

Total Cost = 25a + 15b + 10c

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I'll give brainliest if you show your work. Plz answer quickly.
Maslowich

Answer:

  C) In step 3, he should have determined which square is closest to 18.

Step-by-step explanation:

17.64 also rounds to 18. 17.64 differs from 18 by ...

  18 -17.64 = 0.36

whereas 18.49 differs from 18 by ...

  18.49 -18 = 0.49

Hence 17.64 is closer to 18 and we might expect 4.2 to be closer to √18 than is 4.3.

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The actual root of 18 is about 4.243, so 4.2 is a better approximation.

5 0
3 years ago
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how can you use the metric prefixes milli, centi, and kilo to help you decide if a metric conversion is reasonable
serious [3.7K]
I remember it as a meter in the middle a 100 cents in a dollar and a millimeter is just one one-thousandth of a meter. A kilo is 100 times a meter.
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3 years ago
30 = −5(6n + 6) multi step equation show all steps pls
lora16 [44]

Step-by-step explanation:

30=-5(6n+6)

30=-5×6n-5×6

30=-30n-30

30+30=-30n

60=-30n

60/-30=-30n/30

-2=n

5 0
3 years ago
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68.64 is 78% of what
icang [17]
53.5392 is the answer
6 0
3 years ago
I will give brainlist please someone help!!!​
Cerrena [4.2K]

Answer:

x = 6

Step-by-step explanation:

Alternate angles are congruent.

7x - 9 = 3x + 15               {Subtract 3x form both sides}

7x - 3x -9 = 15

      4x - 9=15            {Add 9 to both sides}

           4x = 15+9

           4x = 24

           x = 24/4

x = 6

6 0
3 years ago
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