We have to use mathematical notation to convert the given statement into an equation. As we don't know the exact value of number, we have to use a variable in place of the number.

Let x be the required number then

"A number decreased by 7"

$x-7$

"and then divided by 5"

$\frac{x-7}{5}$

" is 13."

$\frac{x-7}{5} = 13$

For solving, multiplying both sides of equation by "5"

$\frac{x-7}{5} * 5 = 13*5\\x-7 = 65$

Adding 7 on both sides of equation

$x-7+7 = 65+7\\x = 72$

Hence,

The equation is: $\frac{x-7}{5} = 13$ and the number is 72.

4 0

3 years ago

What are the like terms in the expression?

Semenov [28]

Answer: –9 and 2

Step-by-step explanation:

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2 years ago

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To get to school each morning, Vanessa takes a horse 19.33 miles and a train 2.27 miles. In total the journey takes 26.48 minute

yarga [219]

The journey is 21.6 miles in total

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3 years ago

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