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11111nata11111 [884]
3 years ago
10

Andy paints 3 rooms in 7 hours. at the same pace, how long would it take to paint 15 rooms.

Mathematics
1 answer:
Dominik [7]3 years ago
3 0

Answer:

105

Step-by-step explanation:

15 x 7

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Can someone help me !
DochEvi [55]

Answer:

C) ??????? I think

Step-by-step explanation:

Hope this helps

3 0
3 years ago
Read 2 more answers
Pleaseeee help meeee
yan [13]
Don’t really know if you still need help
4 0
3 years ago
Two triangular prisms are similar. The perimeter of each face of one prism is double the perimeter of the
shepuryov [24]

The area of a shape is the amount of space it can occupy.

<em>The surface area of the larger prism is 4 times the surface area of the smaller prism. </em>

<em />

<em />

<em>Let the dimension of one side of the smaller prism be: l and w</em>

<em>Let the dimension of one side of the bigger prism be: L and W</em>

<em />

So, we have:

L = 2l

W =2w

The area of these corresponding sides are:

A_1 =l \times w ---- the first

A_1 = lw

While, the area of the second is:

A_2 =2l\times 2w\\

A_2 =4lw

The ratio of these two sides are:

Ratio = A_1 : A_4

<em>This gives</em>

Ratio = lw : 4lw

Cancel out common terms

Ratio = 1 : 4

Express as fractions

Ratio = \frac 14

Also, we have:

Ratio = \frac{Small}{Large}

This gives

\frac{Small}{Large} = \frac 14

Cross multiply

Large = 4 \tiimes Small

Large =  4\4Small

Hence, option (c) is true

Read more about areas at:

brainly.com/question/6465134

4 0
2 years ago
Consider the inequality -5(x+7)&lt;-10. Write an Inequality representing the solution for x.
alexdok [17]

It could be 3 and lower because if you - 7 from -10 you get -17 then your equation would be -5x< -17 than you divide -17 by -5 and get 3.4 than your equation is x < 3.4 so your answer is 3.4 or below.


7 0
3 years ago
How would I do the steps to solve this?
allsm [11]

Answer:

The maximum revenue is 16000 dollars (at p = 40)

Step-by-step explanation:

One way to find the maximum value is derivatives. The first derivative is used to find where the slope of function will be zero.

Given function is:

R(p) = -10p^2+800p

Taking derivative wrt p

\frac{d}{dp} (R(p) = \frac{d}{dp} (-10p^2+800p)\\R'(p) = -10 \frac{d}{dp} (p^2) +800 \ frac{d}{dp}(p)\\R'(p) = -10 (2p) +800(1)\\R'(p) = -20p+800\\

Now putting R'(p) = 0

-20p+800 = 0\\-20p = -800\\\frac{-20p}{-20} = \frac{-800}{-20}\\p = 40

As p is is positive and the second derivative is -20, the function will have maximum value at p = 40

Putting p=40 in function

R(40) = -10(40)^2 +800(40)\\= -10(1600) + 32000\\=-16000+32000\\=16000

The maximum revenue is 16000 dollars (at p = 40)

3 0
3 years ago
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