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denis-greek [22]
3 years ago
15

community group bought 30 tickets to an amusement park at a total cost of $810. They bought x student tickets for $25 each and y

adult tickets for $30 each. Complete the following sentence. The community group bought__student tickets and__adult tickets. Enter a number like 15 in each box
Mathematics
1 answer:
Zina [86]3 years ago
4 0

it would be 18 student tickets and 12 adult tickets

18x25= 450

12x30 = 360

360+450 = 810

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A line has a slope of 7 and a y-intercept of -2
geniusboy [140]

Answer: it's -1

Step-by-step explanation: Hope this helps

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5 0
3 years ago
What is the solution to sqrt 17-x=x+3? Show your work.
snow_lady [41]

Answer:

x=1

Step-by-step explanation:

Remember:

(\sqrt[n]{a})^n=a\\\\(a+b)=a^2+2ab+b^2

Given the equation \sqrt{17-x}=x+3, you need to solve for the variable "x" to find its value.

You need to square both sides of the equation:

(\sqrt{17-x})^2=(x+3)^2

17-x=(x+3)^2

Simplifying, you get:

17-x=x^2+2(x)(3)+3^2\\\\17-x=x^2+6x+9\\\\x^2+6x+9+x-17=0\\\\x^2+7x-8=0

Factor the quadratic equation. Find two numbers whose sum be 7 and whose product be -8. These are: -1 and 8:

(x-1)(x+8)=0

Then:

x_1=1\\x_2=-8

Let's check if the first solution is correct:

\sqrt{17-(1)}=(1)+3

4=4 (It checks)

Let's check if the second solution is correct:

\sqrt{17-(-8)}=(-8)+3

5\neq-5 (It does not checks)

Therefore, the solution is:

x=1

3 0
3 years ago
the sum of three times a number and 2 less than 4 times the same number is 15. which of the following equations could be used to
Ulleksa [173]
To solve for a number x,

3x+4x-2=15
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was one of your answer choices either of the first two equations?
4 0
3 years ago
What does 8k + 3 + 4k=
Svetach [21]
3(4k+1) is the result I hope it helps you
7 0
3 years ago
Read 2 more answers
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