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Olegator [25]
2 years ago
6

Can someone please help me you have to explain your answer plzzz help ?!?!?!?!?!

Mathematics
1 answer:
igor_vitrenko [27]2 years ago
6 0

Answer:

<h3>Question 1</h3>
  • Let number of adult tickets - x, student tickets - y

<u>Required equations:</u>

  • x + y = 8
  • 7.25x + 5.50y = 52.75

<u>Solve by substitution x = 8 - y</u>

  • 7.25(8 - y) + 5.50y = 52.75
  • 58 - 7.25y + 5.50y = 52.75
  • 1.75y = 5.25
  • y = 5.25/1.75
  • y = 3

<u>Find x:</u>

  • x = 8 - 3 = 5

Answer: 5 adults and 3 students

<h3>Question 2</h3>
  • Pair of gloves costs- x, hats cost- y

<u>Equations:</u>

  • 2x + 4y = 43
  • 2x + 2y = 30

<u>Solve by elimination, subtract the equations:</u>

  • 2y = 43 - 30
  • 2y = 13
  • y = 6.5

<u>Find x:</u>

  • 2x = 30 - 13
  • 2x = 17
  • x = 8.5

Answer: Gloves cost $8.5, hats cost $6.5

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ANSWER

8π ft

EXPLANATION

The circumference of a circle is calculated using the formula C=πd.

Where d=8 is the diameter of the circle.

We substitute d=8 into the formula to obtain,

C=8π ft.

Because we are looking for the exact circumference, we leave the answer in terms of π.

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3 years ago
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Write equations for the horizontal and vertical lines passing through the point (4, -5).
raketka [301]

Answer:

Horizontal line: y=-5

Vertical line: x = 4

Step-by-step explanation:

As we have to determine the equations for the horizontal and vertical lines passing through the point (4, -5).

  • To determine the equation for the horizontal line passing through the point (4, -5), we must observe that the horizontal line will always have the same y-value regardless of the x-value.

Therefore, the equation of the horizontal line passing through the point (4, -5) will be: y=-5

  • To determine the equation for the vertical line passing through the point (4, -5), we must observe that the vertical line will always have the same x-value regardless of the y-value.

Therefore, the equation of the vertical line passing through the point (4, -5) will be: x=4

Hence:

Horizontal line: y=-5

Vertical line: x = 4

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3 years ago
What is the mean of 5, 8, 16, 22, 19, 27, 32? (Round to the nearest whole number.)
Artyom0805 [142]

Answer:

B) 18.

Step-by-step explanation:

Add them up then divide by the amount of numbers there are.

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2 years ago
Samantha has 4 1/2 gallons of lemonade for her daughter’s birthday party. Each gallon of lemonade contains 1.5 grams of fat. How
Lubov Fominskaja [6]

Answer:

6.75 grams

Step-by-step explanation:

Total amount of lemonade with Samantha =  4 1/2 gallons

         = (4*2 + 1)/2 gallons = 9/2 gallons = 4.5 gallons

Amount of fat in 1 gallon of lemonade = 1.5 grams

To find amount of fat in 4.5 gallons lemonade

we multiply both side of equation with 4.5

Amount of fat in 1*4.5 gallon of lemonade = 1.5*4.5  grams = 6.75 grams

Thus,

there is  6.75 grams of fat in  all the lemonade Samantha has for the party

3 0
3 years ago
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