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4 years ago

15

This is easy i’m just dumb please help

1 answer:

9966 [12]4 years ago

8 0

Hello! I can help you with this! So what we need to do is convert fractions to decimals. If you know basic fractions, 1/4 = 0.25, And 1/5 = 0.2. In this case, here are the numbers converted into decimal form.

8 1/4 = 8.25
1 1/5 = 1.2
2 1/4 = 2.25
6 1/5 = 6.2

Now this question is asking for the perimeter around the figure. In this case, we have to add up all of the sides. When we add up all of the numbers, you should get 17.9 or 17 9/10 in simplest fraction form. There. The perimeter is 17 9/10 meters.

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Hello! I was wornding if you can help me with this problem 5 + 2/3x = 1/2x -1/4

Natalija [7]

Answer:

x = - 63/2

Step-by-step explanation:

5 0

3 years ago

The average cost of a gallon of gas during July was $2.45. The average cost of a gallon of gas during August was $2.78. What is

nekit [7.7K]

Step One

Figure out the actual change.

Change = 2.78 - 2.45

Change = 0.33

Step 2

Find the % change

% Change = 0.33/2.45 * 100 = 13.5%

4 0

4 years ago

PLEASE HELP!!!!

wel

Answer:

Mike is not right

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z----> the scale factor

x----> surface area of the enlarged rectangular prism

y-----> surface area of the original rectangular prism

$z^{2}=\frac{x}{y}$

so

In this problem we have

$z=2$

substitute

$2^{2}=\frac{x}{y}$

$4=\frac{x}{y}$

$x=4y$

so

The surface area of the enlarged rectangular prism is 4 times the surface area of the original rectangular prism

therefore

Mike is not right

<em>Verify with an example</em>

we have a rectangular prism

$L=5\ m$

$W=2\ m$

$H=3\ m$

The surface area of the prism is equal to

$SA=2(LW)+(2L+2W)H$

substitute the values

$SA=2*(5*2)+(2*5+2*2)*3=62\ m^{2}$

If he doubles each dimension of any rectangular prism

then

the new dimensions will be

$L=5*2=10\ m$

$W=2*2=4\ m$

$H=3*2=6\ m$

The new surface area will be

$SA=2*(10*4)+(2*10+2*4)*6=248\ m^{2}$

$248/62=4$

therefore

The surface area of the enlarged rectangular prism is 4 times the surface area of the original rectangular prism

8 0

3 years ago

Monday what is 33,579 divided by 7

Kobotan [32]

Answer: It equals 4797

Step-by-step explanation: 33,579 / 7 equals 4797

5 0

3 years ago

Read 2 more answers

3m + 8 + m = 36 which can be substituted for m to make this equation true?

PilotLPTM [1.2K]

Answer:

m = 7

Step-by-step explanation:

3m + 8 + m = 36 , that is

4m + 8 = 36 ( subtract 8 from both sides )

4m = 28 ( divide both sides by 4 )

m = 7

3 0

3 years ago