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Igoryamba
2 years ago
9

The history museum is hosting a special exhibition on history of flight. The admission ticket for each adult costs $7 and the ad

mission
ticket for each child costs $2. On the opening day of the exhibition, 40 tickets were sold for a total of $180. How many adults visited the
special exhibition?
Mathematics
1 answer:
stiks02 [169]2 years ago
5 0

Answer:

Use simultaneous equation for this problem

y= number of adults

x = number of children

3y + 2x = 160

y + x = 60

then we double the second equation

3y + 2x = 160

2y + 2x = 120

we cancel x by elimination

3y - 2y = 160 - 120

y = 40

Step-by-step explanation:

hope this helps

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maxonik [38]

Answer:

77-33

Step-by-step explanation:

1)

11(7-3)

2)

(11 x 7) - (11 x 3)

3)

77 - 33

Answer:

77-33

6 0
3 years ago
A square garden with side length of 50 has a square shaped fountain display with length of 12 feet at the exact center of garden
nadezda [96]

Answer:

The area of the garden is 2356\ ft^2

Step-by-step explanation:

<u>Area of a Square</u>

Given a square of a side length of x, the area is calculated as:

A = x^2

There is a square garden area of a side length of x=50 feet. The area is:

A_1=50^2=2500\ ft^2

Inside of it, there is another square area for a fountain display of a side length of 12 feet. The area is:

A_2=12^2=144\ ft^2

The area of the garden is the difference between A2 and A1:

A_g=A_2-A_1=2500\ ft^2-144\ ft^2

A_g=2356\ ft^2

6 0
3 years ago
Do i use tan to solve this problem
GrogVix [38]

Answer:

? =74.0546041

Step-by-step explanation:

Given a right triangle

tan theta = opp/ adj

tan ? = 7/2

Take the inverse tan of each side

tan^-1 (tan ?) = tan ^-1 (7/2)

? =74.0546041

8 0
3 years ago
Matt has soccer practice on May 4th you will practice every fourth day after that I can't begins baseball practice every third d
vovikov84 [41]

Answer:

May 12th

Step-by-step explanation:

7 0
3 years ago
Free easy points~<br><br> Find the surface area of this triangular prism.
djverab [1.8K]

Surface area is the sum of area of all surfaces.

In the given diagram , we have two identical triangles , with height = 20 cm and base = 25 cm. Area of triangle = (1/2)*base * height.

So for the given triangle , area = 2*(1/2)*20*25 = 500 cm square .

We have a bottom rectangle whose area is 25*40 = 1000 cm square. A sideby rectangle, whose area is 35*40= 1400 cm square and a backwards rectangle, whose area is 20*40 = 800 cm square.

So the surface area = 500+1000+1400+800 =3700 cm square.

6 0
3 years ago
Read 2 more answers
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