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DiKsa [7]
4 years ago
5

You get tired of the sand and head up to the amusement park. You can purchase 20 ride tickets for $14 or you can purchase 30 rid

e tickets for $22.50. Which is a better deal?
Mathematics
1 answer:
Helga [31]4 years ago
5 0

Answer:

The one with the better deal would be 30 ride tickets for $22.50 this is because you pay less money for more rides.

Step-by-step explanation:

First you divide 20 by 14. Doing this will give you the cost of a ride per ticket.

20/14 = 1.42

Then you do the same thing to 30 and 22.50.

30/22.50 = 1.30

Last you compare which deal has less money per ride.

1.42 > 1.30

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Please help me to prove this. ​
Vanyuwa [196]
<h3><u>Answer</u> :</h3>

For triangle : A + B + C = π

⇒ A + B = π - C

⇒ cot(A + B) = cot(π - C)

⇒ \sf\dfrac{cotA\:cotB-1}{cotB+cotA}=-cotA

⇒ \bf{cotA\:cotB+cotB\:cotC+cotC\:cotA=1}

<u>Now 1st part of the given expression</u>!

⇒ \sf\dfrac{cosA}{sinB\:sinC}

⇒ \sf\dfrac{cos(\pi-(B+C))}{sinB\:sinC}

⇒ \sf\dfrac{-cosB\:cosC+sinB\:sinC}{sinB\:sinC}

⇒ 1 - cotB cotC

<u>Similarly 2nd part</u>!

⇒ 1 - cotA cotB

<u>Similarly 3rd part</u>!

⇒ 1 - cotC cotA

<u>LHS</u> :

\circ\:\sf{3-(cotA\:cotB+cotB\:cotC+cotC\:cotA)}

\circ\:\sf{3-1}

\circ\:\bf{2} = <u>RHS</u>

<h3>Hence Proved!!</h3>
8 0
3 years ago
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How to evaluate the expression 10(6-5)-3(9-6)
EastWind [94]
<span>10(6-5)-3(9-6) = 10 x 1 - 3 x 3 = 10 - 9 = 1</span>
6 0
3 years ago
Read 2 more answers
Qué características tiene un rombo
Dominik [7]

Answer:

Un rombo es cualquier paralelogramo con cuatro lados congruentes, cuatro ángulos y cuatro vértices. Tiene la forma de un diamante y una cometa

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Brianna buys 10 balloons for her sisters. She gives 5 balloons to each sister and has none left. How many sisters doe Brianna ha
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Answer:

2

Step-by-step explanation:

10-5=5

5-5=0

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Answer:

B. $43.59

Step-by-step explanation:

39.99 x 1.09= 43.59

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3 years ago
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