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swat32
3 years ago
6

Solve for x and y

Mathematics
2 answers:
velikii [3]3 years ago
8 0

<u>Answer:</u>

The correct answer option is a) there are an infinite number of solutions

<u>Step-by-step explanation:</u>

We are given these two following equations:

15x = 5y - 5 --- (1)

y = 3x + 1 --- (2)

Solving these two by the substitution method by putting the value of y in equation (1).

15x = 5y - 5

15x = 5(3x + 1) - 1

15x = 15x + 5 - 5

5 and -5 get cancelled and we are left with 15 on both sides of the equation which will cancel each other.

Therefore, these equations have an infinite number of solutions.

Rainbow [258]3 years ago
5 0
The answer would be option B
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-2(x-4)=-16<br> SOLVE FOR X!!
Andrej [43]

Answer:

x = 12

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

-2(x - 4) = -16

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

  1. Distribute -2:                    -2x + 8 = -16
  2. Isolate <em>x</em> term:                  -2x = -24
  3. Isolate <em>x</em>:                           x = 12

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    -2(12 - 4) = -16
  2. Subtract:                       -2(8) = -16
  3. Multiply:                        -16 = -16

Here we see that -16 does indeed equal -16.

∴ x = 12 is a solution of the equation.

6 0
3 years ago
-3+0=-3 <br> is what property?
djverab [1.8K]

Answer:

It has a zero in it so it should be identity property.

Step-by-step explanation: anything with 0 is im pretty sure the Identity problem.

6 0
3 years ago
There are three times as many cats in the animal shelter as puppies. There are twelve times as many fish as there are puppies. I
damaskus [11]

Answer:

12 fish and puppies

Step-by-step explanation:

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We have  \frac{12}{3} "sets", which means  4  sets.

4 fish per "set" and  3 "sets" means there are  

4 × 3  or  12 fish and puppies.

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Answer:

Melvin can buy 11 package Peanuts

Step-by-step explanation:

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