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2 years ago

Can you please tell me what -4x + 9x is?

Mathematics

2 answers:

Natasha2012 [34]2 years ago

4 0

Answer:

$\boxed{ - 4x +9 x = ( - 4 + 9)x = 5x}\\$

<h3><u>5x</u> is the right answer.</h3>

Luba_88 [7]2 years ago

3 0

Answer = 5x

Explanation: Collect the like terms by calculating the sum or difference of their coefficients which would get you (-4 + 9)x
Then you calculate the sum which gets you 5x

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2 years ago

The Art and History Museum offers a family discount card for a donation of $57. I The table shows the price per person with and

Murljashka [212]

Answer:

8 number of visits will be the total cost of the visits (including the price of the discount card) be less expensive for a family of 2 adults and 1 child if they have purchased the discount card

Step-by-step explanation:

Price without Discount Card Price with Discount Card

Ticket (12 & Under) $10 $8

Adult's Ticket $15 $12

Let x be the number of visits

Price without discount card for 2 adults and 1 child ticket

Price without discount for x visits = $x(15 \times 2+ 10)=40x$

Price with discount for x visits = $57+ x(12 \times 2+ 8)=57+32x$

Now to find For what number of visits will the total cost of the visits (including the price of the discount card) be less expensive for a family of 2 adults and 1 child if they have purchased the discount card

57+32x< 40x

57<8x

7.1<x

So, 8 number of visits will be the total cost of the visits (including the price of the discount card) be less expensive for a family of 2 adults and 1 child if they have purchased the discount card

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3 years ago

an airplaine descends 1.5 miles to an elevation of 5.25 miles. find the elevation of the plane before its descent

Maksim231197 [3]

We can then write an equation representing this problem as:

e−1.5mi=5.25mi

Now, add 1.5mi to each side of the equation to solve for e while keeping the equation balanced:

e−1.5mi+1.5mi=5.25mi+1.5mi

e−0=6.75mi

e=6.75mi

The plane's starting elevation was 6.75 miles

Hope this helps!

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3 years ago

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Keith_Richards [23]

If you are talking about a graph:

The input would be the number of adult tickets.

The output would be the amount of money.

If you talking about it normally:

The input would be the amount of money.

The output would be the number of adult tickets.

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3 years ago

Can you please tell me what -4x + 9x is? ​

Can you please tell me what -4x + 9x is?