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Artemon [7]
3 years ago
10

The sum of two numbers is 4 less than twice the larger. if the larger is deecreased by three times the smaller, the reesult is -

20. find the numbers
Mathematics
1 answer:
erica [24]3 years ago
6 0
Let the smaller number be x

let the larger number be y

According to Question-

x + y = 2y - 4
→ x - y = -4 ...1

if larger number is decreased by 1/3 we get equation -

x + y/3 = -20
→ 3x + y = -60 ...2

adding equation 1 and 2, we get:

4x = -64

→ x = -16

→ y = -60 - 3(-16)

→ y = -60 + 48

→ y = -12



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What the power a when 5^a = 1/125
Advocard [28]

Answer:

a = -3

General Formulas and Concepts:

<u>Algebra I</u>

  • Solving Exponential Equations
  • Exponential Property [Rewrite]: \displaystyle b^{-m} = \frac{1}{b^m}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

<em />\displaystyle 5^a = \frac{1}{125}<em />

<em />

<u>Step 2: Solve for </u><em><u>a</u></em>

  1. Rewrite:                                                                                                                \displaystyle 5^a = \frac{1}{5^3}
  2. Rewrite [Exponential Property - Rewrite]:                                                       \displaystyle 5^a = 5^{-3}
  3. Set:                                                                                                                    \displaystyle a = -3
3 0
2 years ago
I’ll mark you brainlist I’ll mark you brainlist write in y=mx+b form
Romashka [77]

Answer:

y=-4x+2

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5 0
3 years ago
Mika used these steps to solve the equation 5x−12=−2+5(x−2)
e-lub [12.9K]
5x−12=−2+5(x−2)
multiply 5 by all in parentheses first
5x - 12= -2 + (5*x) + (5*-2)
5x - 12= -2 + 5x - 10
5x - 12= 5x - 12
if you subtract 5x from one side and add 12 to the other the solution is:
0= 0

This equation is one that is always true. No matter what number you put in for x, it will always be true.

Example:
5x - 12= 5x - 12
5(4) - 12= 5(4) - 12
20 - 12= 20 - 12
8= 8

Example:
5(-100) - 12= 5(-100) - 12
-500 - 12= -500 - 12
-512= -512

This will happen no matter what number x is.

ANSWER: D) All values of x make the equation true.

Hope this helps! :)
5 0
3 years ago
Read 2 more answers
Salinas planting a circular flower bed radius of 3 1/2 feet she plans Chase around it with wire fencing that cost 0.89 $ a foot
Brut [27]

Answer:

Total Fencing Cost =$19.57

Step-by-step explanation:

If Rosalina is planning on fencing, we are talking about the Perimeter of the Flower Bed

Perimeter of a Circle = 2\pi r

Radius of the circular flower bed =3.5 ft

Perimeter = 2\pi X 3.5=21.99ft

If Wire fencing Cost $0.89 per foot

Total Fencing Cost = $0.89 X 21.99=$19.57

6 0
4 years ago
Express 960% as a mixed number
maksim [4K]

Answer:

9 3/5

Step-by-step explanation:

When we see a percentage, we know that the base is 100. In other words, 960% is equal to 960/100

With this, its just a matter of transforming the improper fraction to a mixed number.

100 fits 9 times in 960 so there will be 9 wholes

the remaining 60/100 can be simplified to 3/5 through this process:

60/100 = 6/10 = 3/5

8 0
3 years ago
Read 2 more answers
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