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weeeeeb [17]
2 years ago
15

10) If ten is added to four times a certain number, the sum is four less than five times the number. Find the number.​

Mathematics
1 answer:
Ulleksa [173]2 years ago
6 0

Answer:

x = 14

Step-by-step explanation:

let the number be x.

  • 4 times the number = 4x
  • 10 added to 4 times the number = 4x + 10

now,

  • 5 times the number = 5x
  • 4 less than 5 times the number = 5x - 4

Given that,

4x + 10 = 5x - 4

moving all x terms to the LHS and the constants to the RHS

4x - 5x = -4 - 10

-x = -14

dividing both sides by -1

<u>x = 14</u>

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Please help! If possible please show your work. Thank you in advance!! :D
Rudiy27

Answer:

  • (-4)³ = -64
  • -64

Step-by-step explanation:

The first step in solving the equation is to cube both sides:

  (∛x)³ = (-4)³ . . . . . = (-4)(-4)(-4) = 16(-4) = -64

  x = -64 . . . . . simplified

__

We're not sure what "checking" is supposed to involve here. Usually, one would check the answer by seeing if a true statement is made when the answer is put into the original equation.

  ∛(-64) = -4 . . . true

Many calculators will not compute √(-64) because they compute roots using logarithms. The log of a negative number is not defined.

So, the way one would check this is to cube both sides, which is how we got the answer in the first place. We expect the same result from doing the same operation again, so it isn't really a check.

6 0
2 years ago
1<br> Which expression is equivalent to 24 3?<br> O 213<br> 23/3<br> 276<br> 23/6<br> please help!
krok68 [10]

Answer:

B 2 \sqrt[3]{3}

Step-by-step explanation:

24 ^ 1/3

WE know that (ab) ^ c = a^ c * b*c

24 ^ 1/3  = 8^1/3 * 3 ^1/3

              = 2  * 3 ^1/3

8 0
3 years ago
Read 2 more answers
What percent of 300 is 90. Help please
Katyanochek1 [597]
30%.

Well, the simplest way to do it is to put it as a fraction.
90/300.

This is the same as 3/10, which is the same as .30, which is the same as 30% :P

Hope this helped!
3 0
3 years ago
Read 2 more answers
Can someone please help me!! please and thank you, it’s pemdas and gems
Leya [2.2K]
First 8-3
next 4^4
then 16-6
last 10+5
you should get 15
5 0
2 years ago
What is the value of s?
PIT_PIT [208]
15 hope this helps

How I got there

Total number of degrees 180

add 59 + 91 = 150

180 - 150 = 30

30 divided by 2 = 15
7 0
3 years ago
Read 2 more answers
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