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2 years ago

write the correct Equation and Solve. Use x for the variable. The difference of four times a number and seven is thirteen

Mathematics

1 answer:

Verizon [17]2 years ago

7 0

Answer:

Step-by-step explanation:

Let the number be x

4times a number =4x

The difference of four times a number and seven : 4x - 7

4x - 7 = 13

4x = 13 + 7

4x = 20

x = 20/4

x = 5

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Answer:

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Answer:

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Step-by-step explanation:

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2 years ago

GAMING In a video game, the user navigates a character across an unknown land using a map. On the map, the distance between the

soldi70 [24.7K]

The question is an illustration of scale drawing

The character have to travel 8.5 km in the game to visit all three destinations and return to their starting point

<h3>How to calculate the actual distance</h3>

The distance on the map are given as:

A =2 cm

B = 8 cm

C = 7 cm

The total distance on the map would be:

$Total =2cm + 8cm + 7cm$

$Total =17cm$

The actual distance between the store and the dungeon is 4 kilometers.

This means that:

$B' =4km$

So, we have:

$Scale = B : B'$

$Scale = 8cm : 4km'$

Represent the required actual distance with x.

So, we have:

$17cm : x = 8cm : 4km$

Express as fraction

$\frac{x}{17} = \frac 48$

Multiply both sides by 17

$x = \frac 48 * 17$

$x = 8.5$

Hence, the actual distance travelled is 8.5 km

write the correct Equation and Solve. Use x for the variable. The difference of four times a number and seven is thirteen​

write the correct Equation and Solve. Use x for the variable. The difference of four times a number and seven is thirteen