The final expression would be -5x -50.

You could've got this by multiplying -5 and x together, which is -5x.
Multiply -5 and 10 together, and you get -50.
This is also called the Distributive Property. Hope this helped :)

3 0

4 years ago

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On a scale drawing, a helicopter is 2.3 feet long. The scale on the drawing shows a ratio of 1 foot to 10 feet. What is the actu

andrey2020 [161]

Answer:

The actual length of the helicopter is <u>23 feet</u>.

Step-by-step explanation:

Given:

On a scale drawing, a helicopter is 2.3 feet long.

The scale on the drawing shows a ratio of 1 foot to 10 feet.

Now, to find the actual length of the helicopter.

Let the actual length of helicopter be $x$ .

On scale drawing length of helicopter = 2.3 feet.

The scale on the drawing shows a ratio = 1:10.

Now, as ratios are given so by setting proportion we solve it:

$\frac{2.3}{x} =\frac{1}{10}$

<em>By cross multiplying we get:</em>

⇒ $2.3\times 10=x$

⇒ $23=x$

⇒ $x=23\ feet.$

Therefore, the actual length of the helicopter is 23 feet.

8 0

4 years ago

to find the product 3/7x4/9 ,Cameron simplified 3/7 to 1/7 and then multiplied the fractions 1/7 and 4/9 to find the product 4/6

eimsori [14]

He should not have simplified 3/7 to 1/7 as they do not equal - he now has 2 less sevenths than before.

3 0

4 years ago

Help Please I really Need it on a Timer

masha68 [24]

Answer:

its A

Step-by-step explanation:

5 0

3 years ago