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aliina [53]
3 years ago
8

Eight times a number is the same as 30 less than 5 times the number. Find the number?

Mathematics
2 answers:
Bezzdna [24]3 years ago
8 0

Answer:

the number = -10

Step-by-step explanation:

1. to find the number, make it x. then, make an equation with it.

  8x = 5x - 30

2. then, you just solve the equation

  - subtract 5x from both sides

     3x = -30

  - divide by 3

     x = -10

hopefully that makes sense! :)

Charra [1.4K]3 years ago
6 0

Answer:

x = -10

Step-by-step explanation:

We just have to translate the problem correctly

>8 times a number is the same

this tells me that

8x = ...

>as 30 less than 5 times the number.

... = 5x - 30

Now set them equal to eachother

8x = 5x - 30

Now isolate the variable x

8x - 5x = 5x - 5x - 30\\3x = -30\\x = \frac{-30}{3} = -10

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If the rate of change (ROC) of the function is quadratic, then the function type is cubic

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2 years ago
The roots of a quadratic equation are (1,0) and (-5,0). What is the axis of symmetry?
leva [86]

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3 years ago
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NARA [144]

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