Ratio of 25cm to 40cm

Mathematics

1 answer:

BARSIC [14]3 years ago

6 0

5:8

is the ratio .he she and shd

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3/8x - 1/4 =1/2<br><br> Please hurry

4vir4ik [10]

Answer:

x=2

Step-by-step explanation:

hope this helps :)

7 0

3 years ago

Does anybody know the answer to all of these?

Mama L [17]

Answer:10

Step-by-step explanation:

2+4+6+6+9+13+30=70

70 divided by 7= the mean should be 10

6 0

3 years ago

Read 2 more answers

You are designing a rectangular garden. the garden will be enclosed by fencing on three sides and by a house on the fourth side.

RUDIKE [14]

Suppose the dimensions of the rectangle is x by y and let the side enclosed by a house be one of the sides measuring x, then the sides that is to be enclosed are two sides measuring y and one side measuring x.

Thus, the length of fencing needed is given by

P = x + 2y

The area of the rectangle is given by xy,

i.e.

$xy = 288 \\ \\ \\ \\ \Rightarrow y= \frac{288}{x}$

Substituting for y into the equation for the length of fencing needed, we have

$P=x+2\left( \frac{288}{x} \right)=x+ \frac{576}{x}$

For the amount of fencing to be minimum, then

$\frac{dP}{dx} =0 \\ \\ \Rightarrow1- \frac{576}{x^2} =0 \\ \\ \Rightarrow \frac{576}{x^2} =1 \\ \\ \Rightarrow x^2=576 \\ \\ \Rightarrow x=\sqrt{576}=24$

Now, recall that

$y= \frac{288}{x} = \frac{288}{24} =12$

Thus, the length of fencing needed is given by

P = x + 2y = 24 + 2(12) = 24 + 24 = 48.

Therefore, 48 feets of fencing is needed to enclose the garden.

8 0

3 years ago

What are the variables for question 5, problem a, I don't quite understand.

valentinak56 [21]

One variable is the amount of time it takes her to make a plate. The other variable is the amount of time it takes her to make a cup.

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3 years ago

A television normally sells for $320. This week, it's on sale at 60% of the normal price. What is the sale price?

Evgesh-ka [11]

You would take 320 and multiply it by .60 and you would get 192. So the answer is B) $192.

3 0

3 years ago