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valina [46]
3 years ago
11

What is the scale of a drawing in which a 9ft wall is 6cm long?

Mathematics
1 answer:
Orlov [11]3 years ago
8 0

Answer:

.022

Step-by-step explanation:

If you scale something you basically multiply it by something.  if you draw something at two times the scale, you are doubling it.  so 9 ft would be scaled up to 18 foot.  if you draw it at half the scale you cut it in half, so 9 would be 4.5.

The question is asking what do you multiply 9 feet by to get 6 cm.  Now, it's not just 9 to 6, but feet to centimeters.  A quick googling says the conversion is 1 foot = 30.48 centimeters.  so 30.48*9 gets us 9 feet is 274.32 cm.  So now we can simply find the scale factor between 274.32 cm to 6 cm.  Since it is decreasing we know it is going to be less than 1.  You basically use algebra though.  what do you multiply 274.32 by to get to 6?

274.32x = 6

x = 6/274.32

x = .022

So the scale factor is about .022

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Decompose and use the distributive property to find the product of 5 × 7.3.
swat32

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Evaluate n+2x2 when n=3 and x=−2.
krok68 [10]

Answer:

When n=3 and x=−2  the answer is 11.

Step-by-step explanation:

Given:

Let p (n,x) be the function such that

p (n,x) = n + 2x^{2}

To Find:

p (n,x) = p ( 3, -2) = ?

Solution:

p (n,x) = n + 2x^{2}

Substituting n = 3 and x = -2 we get

p (3, -2) = 3 + 2(-2)^{2}

Negative square gives positive number therefore (-2)²=4

p (3, -2) = 3 + 2\times 4

p (3, -2) = 3 + 8\\p (3, -2) = 11

When n=3 and x=−2  the answer is 11.

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3 years ago
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6 0
3 years ago
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3 years ago
Stephan has a piece of wood that measures 18 inches long and 12 inches wide. He wants to make a tray with sides 2 inches high. M
valkas [14]

Answer:

i. No, Maurice statement is wrong.

ii. Stephan does not have sufficient pieces of wood to make the tray because the square inches required is more than what he has.

Step-by-step explanation:

Stephan's piece of wood measures; 18 inches in length and 12 inches in width.

Since the piece of wood has a shape of a rectangle,

the area of the piece of wood = length × width

                                                 = 18 × 12

                                                = 216 square inches

According to Maurice's statement, he could make a tray that has a base of 1012 inches by 1012 inches.

The base has the shape of a square, so that;

     the area of the base = length × width = length^{2}

                                       = 1012 ×1012

                                      = 1024144 squared inches

This shows that Stephan does not have sufficient wood to make the tray because the square inches required is more than what he has.

5 0
3 years ago
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