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Lesechka [4]
3 years ago
10

How do you do this???

Mathematics
1 answer:
wariber [46]3 years ago
4 0

Answer:

idk im doing to same thing in class im confused too

Step-by-step explanation:

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Please help will give brainliest
SVEN [57.7K]

Answer:

The diameter is: 8 feet

The radius is: 4 ft.

The area is: 50.27

Step-by-step explanation:

Hope this helps!

8 0
3 years ago
Given a rectangle with an area of 20 square units, if the width is x units and the length is x + 1 units, what is the difference
ollegr [7]

Answer: 1unit.

Step-by-step explanation:

Area of the rectangle

A = length × width

Since the area = 20 and the width is x and the length is x + 1.

We now substitute for the values in the above formula and solve for x

20 = x × x + 1

20 = x( x + 1 ), we now open

20 = x² + x , then re arrange.

x² + x - 20 = 0, this is a quadratic equation.we solve for x using quadratic means

Here, I am going to solve using factorization by grouping

x² + x - 20 = 0

x² + 5x - 4x - 20 = 0

x( x + 5 ) - 4( x + 5 ) = 0

( x + 5 )( x - 4 ). = 0

Therefore, the solution for x will be

x = -5 or 4, but x can not be -5 ( negative), so x = 4.

Now the difference between width and the length can easily be calculated from the above,

Width = 4 (x) , and length = 5 (4 + 1),

Now difference will be

5 - 4 = 1unit.

5 0
3 years ago
George invited 65 students in his school to volunteer at a charity race. 39 of the students signed up to volunteer. What percent
mr Goodwill [35]

Answer:

60%

Step-by-step explanation:

Divide the amount of people who showed up by the total invited...

39/65 = 0.6

To convert a decimal to a percent, multiply the decimal by 100%...

0.6(100%) = 60%

8 0
3 years ago
the area of the vegetable garden is 0.4 of the area of the community garden. What is the area of the vegetable garden?
labwork [276]

Answer:

11:6

Step-by-step explanation:

I did the test brainly me

8 0
3 years ago
PLEASE HELP ME I BEG YOU
Rus_ich [418]

You need to find "two-fifths of 30."  Of here means multiplication:

     \begin{aligned}\dfrac{2}{5}\cdot 30 &= \dfrac{2}{5}\cdot\dfrac{30}{1}\\[0.5em] &= \dfrac{60}{5}\\[0.5em] &= 12\end{aligned}

There are 12 athletes in the club.

5 0
2 years ago
Read 2 more answers
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