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Alekssandra [29.7K]
3 years ago
10

A number is three times another number. The difference of these two numbers is 10. Find these number.​

Mathematics
2 answers:
Katyanochek1 [597]3 years ago
5 0

Answer:

\Large \boxed{\sf 15 \ and \ 5}

Step-by-step explanation:

Let the first number be x.

Let the second number be y.

x is 3 times y.

Difference of x and y is 10.

x=3y

x-y=10

Put x as 3y in the second equation.

3y-y=10

Combine like terms.

2y=10

Divide both sides by 2.

y=5

Plug y as 5 in the first equation.

x=3(5)

Multiply.

x=15

The two numbers are 15 and 5.

kow [346]3 years ago
3 0

Answer:

5,15

Step-by-step explanation:

let the numbers be x and y

but y = 3x

3x - x = 10

2x = 10

x = 5

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Arte-miy333 [17]
The answer is O 27 lol
8 0
2 years ago
The tens digit of a two-digit number is twice the units digit. If the digits are reversed, the new number is 36 less than the or
Ludmilka [50]
Try this solution:
let the unknown two-digits number be 'xy'.
Then it is possible to write any two-digit number as 10x+y, where x - the tens digit and y - the unit digit.
Using the rule described above the phrase 'the tens digit of a number is twice the units digit' may be written as x=2y.
Using the same rule the phrase 'if the digits are reversed, the new number is 36 is less than the original number' may be written as (10x+y)-(10y+x)=36.
These two equations may be resolved as system of two equations:
\left \{ {{x=2y} \atop {10x+y-(10y+x)=36}} \right. \ =\ \textgreater \  \  \left \{ {{x=8} \atop {y=4}} \right.
Check: the original number is 84, the new number is 48; difference is 84-48=36.

answer: 84
7 0
3 years ago
Find the distance between -3 and 4.<br><br> A) -12 <br> B) -7 <br> C) -1 <br> D) 7
bonufazy [111]
The answer is 7 because add them to see the distance since it’s both positive if you count the distance it is away from zero so 3+4=7
7 0
3 years ago
Write each number as a logarithm with base 2:-3
expeople1 [14]

The number -3 written as a logarithm with a base of 2 is log₂(0.125) or log₂(1/8)

<h3>What are logarithms?</h3>

As a general rule, logarithms are mathematical expressions that are written in the form log(x) or ln(x), for natural logarithms

<h3>How to rewrite the number as a logarithm?</h3>

The number is given as:

x = -3

The base of the logarithm is given as:

Base = 2

To rewrite the given number as a base of 2, we take the exponent of the number where the base is 2

This is represented as:

Number =2^-3

Apply the power rule of indices

Number =1/2^3

Evaluate the exponent

Number = 1/8

Evaluate the quotient

Number = 0.125

Hence, when the number -3 is rewritten as a logarithm with base 2, the equivalent logarithm expression is log₂(0.125) or log₂(1/8)

Read more about logarithm at:

brainly.com/question/20785664

#SPJ1

7 0
1 year ago
Wat is -27/3 wil mark brainless
KATRIN_1 [288]

Answer:

=9

Step-by-step explanation:

3x9=27

27/3=9

3 0
2 years ago
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