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Ivahew [28]
3 years ago
7

Sorry about the erase marks but I need help on this test.

Mathematics
1 answer:
pav-90 [236]3 years ago
6 0

Answer:

Only got 11 and 12

11. 15

12. 9600

Just Multiply

3x2x2.5

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Determine the sine, cosine, and tangent of the angle.
postnew [5]

Answer:

C

Step-by-step explanation:

Arc length is given by Ф/360 ×2×\pir

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Arc length = 97/360 ×2×\pi × 11

18.63

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3 years ago
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Enrique has $127 in his bank account. Each month he adds $25 to the account.
stiv31 [10]

Answer:

d = 127 + 25m

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We start with 127 dollars

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127 + 25m

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3 0
3 years ago
Tickets to a concert cost either $12 or $15. A
olga_2 [115]

Answer:

  • 12x +15y = 4140; x + y = 300
  • x = 120; y = 180

Step-by-step explanation:

The first equation is for receipts. Each x ticket generated $12 in receipts, so the first term needs to be 12x. Each y ticket generated $15 in receipts, so the second term needs to be 15y. U in this set of equations is the total number of tickets, said to be 300.

The equations are ...

  12x +15y = 4140; x +y = 300

__

Using the second equation to write an expression for x, we have ...

  x = 300 -y

Substituting this into the first equation gives ...

  12(300 -y) +15y = 4140

  3600 +3y = 4140

  y = (4140 -3600)/3 = 180

  x = 300 -180 = 120

The number of tickets sold is ...

  $12 tickets -- 120

  $15 tickets -- 180

_____

You might want to notice that the equation we ended up with:

  4140 -12(300) = 3y

is equivalent to this "word solution." This can be done in your head; no equations required.

If all the tickets sold were $12 tickets, the revenue would be $3600. The revenue is $540 more than that. Each $15 ticket generates $3 more revenue than a $12 ticket, so to have $540 more revenue, we must have 540/3 = 180 $15 tickets.

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3 years ago
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The answer is deductive reasoning. The deductive reasoning refers to a type of reasoning that starts from the general to go to the particular, deducting or inferring conclusions through certain premises. It is the type of reasoning most used in mathematics

4 0
4 years ago
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Kristen gets home from work at 5:34pm Kristen's dinner is ready at 5:51pm How many seconds after Kristen gets home is her dinner
alina1380 [7]

Answer:

1020 seconds

Step-by-step explanation:

take the time of how long getting home to when food will be done which is 17 minutes

times that by 60 to get seconds and its 1020

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4 years ago
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