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3 years ago

14

Max makes a scale drawing of distance between salt lake city and Arizona. The distance between salt lake city and Arizona is 21

cm. If each 7 cm on the scale drawing equals 250 kilometers, how far apart are the salt lake city and Arizona.

1 answer:

Elena L [17]3 years ago

8 0

750 kilometers. 21 divided by 7 is 3. If 7 cm equals 250 km, then 7 × 3 = 250.

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Rudik [331]

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Step-by-step explanation:

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4 0

3 years ago

What is the value of the x variable in the solution to the following system of equations?

defon

ANSWER

The correct answer is C $x=3$ .

<u>EXPLANATION</u>

We have

$4x+2y=12---(1)$

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$x-y=3---(2)$ .

We solve the two equation simultaneously by elimination method. We need to be smart and eliminate y, since we are looking for $x$ .

We first multiply equation (2) by 2

$2x-2y=6---(3)$ .

We add equation (3) and (1).

$\Rightarrow 6x=18$ .

Dividing through by 6 gives

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