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3 years ago

Does anyone wanna talk

Mathematics

2 answers:

gayaneshka [121]3 years ago

7 0

Sure what we talking about
Cause right now I need 2 brainlys to rank up o_O

kvasek [131]3 years ago

6 0

Answer:

dadating din yan❤ hehehe

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2. The radius of a circle is 7cms. The angle subtended by an arc of the circle at centre is 45º. Find the area of sector.

Vitek1552 [10]

Answer:

19.2cm²

Step-by-step explanation:

Given parameters:

Radius of the circle = 7cm

Angle subtended by the arc = 45°

Unknown:

Area of the sector = ?

Solution:

To find the area of the sector, use the expression below;

Area of sector = $\frac{Angle of the arc}{360} x \pi r^{2}$

where r is the radius ;

Insert the parameters and solve;

Area of sector = $\frac{45}{360}$ x $\pi$ x 7²

Area of sector = 19.2cm²

3 0

3 years ago

Find the exact solution for the following system of equations. 2x+3y=48 x+6y=11

TEA [102]

Question 2x+3y=48
Answer x = 24 + -1.5y

Question x+6y=11
Answer x = 11 + -6y

4 0

3 years ago

(PLEASE SHOW PICTURES ON HOW TO SOLVE THIS)

son4ous [18]

Answer:

Fred is $\frac{17}{24}$ ft taller than Benny

Step-by-step explanation:

Subtract Benny's height from Fred's height

4 $\frac{1}{12}$ - 3 $\frac{3}{8}$ ( change to improper fractions )

$\frac{49}{12}$ - $\frac{27}{8}$

The LCM of 12 and 8 is 24 , then

= $\frac{49(2)}{12(2)}$ - $\frac{27(3)}{8(3)}$

= $\frac{98}{24}$ - $\frac{81}{24}$

= $\frac{17}{24}$

3 0

2 years ago

I need to answer a question.

Lady_Fox [76]

Answer:

17/20

Step-by-step explanation:

Probability is actually very fun once you understand it. So, you know that the bag contains 20 marbles. You also know that only 3 of those 20 are yellow. Subtract 3 from 20 and you get 17, which is your answer. Hope this helped, and let me know if you need any more help!

8 0

3 years ago

Read 2 more answers

Last Tuesday regal cinemas sold a total of 8500 movie tickets. Proceeds totaled $64605. Tickets can be bought in 3ways :matinee

Vlad [161]

Answer: 485 matinee tickets, 7045 regular tickets and 970 student tickets were sold.

Step-by-step explanation:

Let x represent the number of matinee tickets that were sold.

Let y represent the number of regular tickets that were sold.

Let z represent the number of student tickets that were sold.

Last Tuesday regal cinemas sold a total of 8500 movie tickets. It means that

x + y + z = 8500

Tickets can be bought in 3ways :matinee cost $5, students cost $6 all day and regular cost $8. Proceeds totaled $64605. It means that

5x + 8y + 6z = 64605- - - - - - - - -2

if twice as many students tickets were sold as matinee tickets, it means that

z = 2x

Substituting z = 2x into equation 1 and equation 2, it becomes

x + y + 2x = 8500

3x + y = 8500

y = 8500 - 3x - - - - - - - - - 3

5x + 8y + 6 × 2x = 64605

5x + 8y + 12x = 64605

17x + 8y = 64605- - - - - - - - - 4

Substituting equation 3 into equation 4, it becomes

17x + 8(8500 - 3x) = 64605

17x + 68000 - 24x = 64605

17x - 24x = 64605 - 68000

- 7x = - 3395

x = - 3395/-7

x = 485

z = 2x = 2 × 485

z = 970

Substituting x = 485 and z = 970 into equation 1, it becomes

485 + y + 970 = 8500

1455 + y = 8500

y = 8500 - 1455

y = 7045

6 0

3 years ago