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vladimir2022 [97]
3 years ago
11

6. There are 90 seats in the school auditorium. The school had a sold out show of their play last weekend, and made $315. The co

st of a ticket for an adult was $5.00 and the cost of a ticket for a child is $2.50. Which system of equations could be used to determine the number of adults, a, and the number of children, c, that attended the showing of the movie? Group of answer choices 2.5a+5c=90 2.5 a + 5 c = 90 a+c=315 a + c = 315 a+c=90 a + c = 90 5a+2.5c=315 5 a + 2.5 c = 315 5a+2.5c=90 5 a + 2.5 c = 90 a+c=315 a + c = 315 a+c=90 a + c = 90 2.5a+5c=315
Mathematics
1 answer:
Olegator [25]3 years ago
4 0

Answer:

90

Step-by-step explanation:

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Twenty years ago, bruce wayne bought a batmobile for 250250250 million dollars. as the crime in gotham city has been down for a
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Bruce will receive $160 million for the batmobile.

<h3>What is percentage?</h3>

The term "percentage" comes from the Latin phrase "per centum," meaning means "by the hundred." Percentages is fractions with a denominator of 100.

In other terms, it is the relationship between portion and whole in which the value of the whole is always assumed to be 100.

Calculating a percentage implies determining a portion of a whole in term of 100. A percentage can be calculated in two ways:

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Now, according to the question;

Given that prices fall about 20% every decade;

Thus,  100% - 20% = 80%

He paid $250 million for a batmobile twenty years ago.

Let Bruce to receive x millions of dollars for the batmobile.

⇒ 80% of x = 80/100 × x = 4/5 x

⇒ x = 250(4/5)(4/5)

⇒ x = 250(16/25)

⇒ x = 160

As a result, Bruce will receive 160 millions of dollars for such batmobile.

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brainly.com/question/317717

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The correct question is-

Twenty years ago, Bruce Wayne bought a batmobile for 250 million dollars. As the crime in Gotham city

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How much can he get for the batmobile if the price goes down by 20% every decade? million dollars

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Step-by-step explanation:

Hey there!

To solve this question we will use PEMDAS (order of operations)

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Subtract 8x from both sides.

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Combine 4x and −8x to get −4x.

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Add 33 and 7 to get 40.

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