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3 years ago

Solve for the area of the part shaded in purple

Mathematics

2 answers:

Vitek1552 [10]3 years ago

6 0

Answer:

area of a trapezium

1/2 ( a+b)h

1/2 (15+9)15

1/2 *24*15

12*15

=180

alexira [117]3 years ago

5 0

Answer:

180 cm

Step-by-step explanation:

this is because if you find the correct area of the purple rectangular shape first, you would have the equation 15 x 9. this equation will give us an answer of 135 mm. our next step would be to find the area of the triangle.

our equation for this will be 15 x 6. this will give us our answers of 90. but because it is a triangle, we will have to divide by two. given is 45. our new equation will now be 135 + 45 given us our sum of 180 cm for the assumed area.

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At the movie theatre, child admission is S5.20 and adult admission is $8.30. On Tuesday, 156 tickets were sold for a total sales

Annette [7]

Answer:

So, 89 Adult tickets were sold.

Step-by-step explanation:

So, we first name our variables, say, a for number of adult tickets, and c for child tickets.

Then we write our system of equations, first the total $ sale:

5.2c + 8.3a = 1087.10

Then we write the 2nd equation, the total number of tickets:

c + a = 156

Now, we can solve the system:

We do have different methods, let's to by subsitution.

make some change to the 2nd equation, to make c the subject: c = 156 - a

Now we plug that into the 1st equation:

5.2(156 - a) + 8.3a = 1087.10

811.2 - 5.2a + 8.3a = 1087.10

811.2 + 3.1a = 1087.10

3.1a = 275.9

a = 89

8 0

3 years ago

Please view picture. Also please tell mehow you got the answer

Cerrena [4.2K]

Have a look at the image attachment. I've added the points A, B, C, D such that
A = base of the diving board pole, or location of the pool deck
B = the location 1.6 meters directly above point A
C = location of the person's eyes
D = diving board location
The goal is to find the length of segment AD

We are given
AB = 1.6
BC = 3.67
what we want to find is
BD = x

Due to the fact we have similar right triangles ABC and CBD, we can form the proportion below and solve for x
AB/BC = BC/BD
1.6/3.67 = 3.67/x
1.6*x = 3.67*3.67
1.6*x = 13.4689
1.6*x/1.6 = 13.4689/1.6
x = 8.4180625

So BD is 8.4180625 meters
Use this to find the length of AD
AD = AB + BD
AD = 1.6 + 8.4180625
AD = 10.0180625
which rounds to 10.0 meters when rounding to the nearest tenth (one decimal place)

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Answer: choice D) 10.0 m

7 0

4 years ago

Select all of the following functions that are quadratic.

raketka [301]

Answer:

A. Y= 2x^2 and D. y+3x=2x^2-8

Step-by-step explanation:

3 0

4 years ago

Jose rented a truck for one day. There was a base fee of $18.99, and there was an additional charge of 91 cents for each mile dr

Anika [276]

Answer:

219

Step-by-step explanation:

do total minus base fee which is

218.28-18.99=199.29

and than

199.29(which is money paid on miles) divided by 91. which is 219

8 0

3 years ago

What is 3/4 of 2/5=

noname [10]

$\frac{3}{4}\ of\ \frac{2}{5}=\frac{3}{4}\times\frac{2}{5}=\frac{3\times2}{4\times5}=\frac{3\times\not2^1}{\not4_2\times5}=\frac{3\times1}{2\times5}=\boxed{\frac{3}{10}=0.3}$

5 0

4 years ago