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3 years ago

7

an airplane model has a scale of 1 to 30. if the model has a length of 14 inches, what is the actual length of the airplane in f

eet?

1 answer:

Dmitry_Shevchenko [17]3 years ago

6 0

Answer:

420 inches

Step-by-step explanation:

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Use operations of decimal, fraction, and percent numbers to model the following scenarios. In your final answer, include only an

Helen [10]

$34*.15= 5.1 off
34-5.1= $28.99
It doesn't leave % to tip so no tip included. It also didn't leave % to tax.

5 0

3 years ago

What letter or symbol that represents some unknown value

tatiyna

$A \ letter \ or \ symbol \ that \ represents \ some \ unknown \ value \ is 

known \ as \ a \ Variable.$

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4 years ago

A cylinder has volume 78 cm3 . What is the volume of a cone with the same radius and height? A 26 cm3 B 39 cm3 C 156 cm3 D 234 c

otez555 [7]

Answer:

Option A - $26 \mathrm{cm}^{3}$

Step-by-step explanation:

Given: The volume of a cylinder = $78 \mathrm{cm}^{3}$

Let us substitute the volume of cylinder in the formula.

The formula for volume of a cone is $V=\frac{\pi r^{2} h}{3}$ (1)

The formula for volume of a cylinder is $V=\pi r^{2} h$ (2)

Substituting $V=78$ in equation (2), we get,

$\begin{array}{c}{V=\pi r^{2} h} \\{78=\pi r^{2} h}\end{array}$

Given that the cone has the same radius and height of that of the cylinder, let us substitute $78=\pi r^{2} h$ in equation (1)

$\begin{array}{l}{V=\frac{\pi r^{2} h}{3}} \\{V=\frac{78}{3}} \\{V=26}\end{array}$

Thus, the volume of a cone with the same radius and height of a cylinder is $26 \mathrm{cm}^{3}$ .

3 0

3 years ago

Multiply. 32.09 × 43.9

Kipish [7]

Your answer would be 1408.751. Have a good day, and may you do well on your test :D

5 0

4 years ago

Can you solve (x-2)(x+3)=5 by solving x-2=5 and x+3=5? Explain.

ddd [48]

Step-by-step explanation:

by solving x-2=5 and x+3=5 ,we assume that x-2=5 and x+3=5 which means

(x-2)(x+3) = 5×5 = 25 which contradicts the hypothesis “(x-2)(x+3)=5”.

_______________

:)

7 0

3 years ago