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3 years ago

Read the problem and examine the diagram.

Mathematics

1 answer:

yulyashka [42]3 years ago

6 0

Answer:

Option A: The answer should be 10% of 6 is the correct answer.

Step-by-step explanation:

Given that:

6 students play trumpet. As they represent 10% of the total students.

Let,

x represent the number of students in the band.

10% of x = 6

By solving this, we will get the value for number of students in the band.

As x will be our answer,

The choices B, C and D are correct in the given scenario.

However,

10% of 6 cannot be the solution to the problem.

Hence,

Option A: The answer should be 10% of 6 is the correct answer.

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HELPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!

snow_lady [41]

Answer:

A. The area is $78.54m^2$

B. She needs to cover 1661.9 square feet of tiles for the base of the swimming pool

Step-by-step explanation:

Question A:

Let us assume that the leash is pegged to the ground using a stake. as a result, the dog can move around the stake. The path that the motion of the dog would trace is a circle, and the radius of the circle will be the length of the leash.

Since we know this, we can easily find the area of the circle using $\pi r^2$

Area of the circle = $\pi \times 5 \times 5 = 78.54m^2$

Question B

Dulce wants to cover the whole surface area of the floor of the circular swimming pool with tiles.

We already know that the swimming pool is circular, hence, the surface area of the base of the swimming pool will be the same as the area of a circle, with the same radius.

The area of the circle can be calculated using $\pi r^2$

Area of circle = $\pi \times 23 \times 23 = 1661.9ft^2$

8 0

3 years ago

a certain forest covers an area of 4100km squared. if each year the area decreased by 4.5% what will be the area after 15 years

babunello [35]

Answer:

2055 km²

Step-by-step explanation:

The amount of forest remaining after t years can be modeled by the exponential equation ...

remaining = original · (multiplier each year)^(number of years)

area = 4100·0.955^t

Then for t=15, the area is ...

area = 4100·0.955^15 ≈ 2055.1 . . . . km²

The area of the forest after 15 years will be about 2055 square kilometers.

8 0

4 years ago

Simplify 7p³ + 2m³ - 6m³ + 4p - 9p + 6p³

krok68 [10]

7p³ + 2m³ - 6m³ + 4p - 9p + 6p³
= 13p³ - 4m³ - 5p
= -4m³ + 13p³ - 5p

answer
d) -4m³ + 13p³ - 5p

6 0

3 years ago

What is the approximate circumference of the circle that has a center at (2, 1) and passes through the point (2, 5)?

Firlakuza [10]

Answer:

C. 25

Step-by-step explanation:

Have a great day!

3 0

3 years ago

Over a period of 3 hours, 190 leaves fell from a tree. At this rate, about how many leaves fell every hour?

In-s [12.5K]

Answer:

Im pretty sure its 60 leaves per hour.

3 0

3 years ago