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Arturiano [62]
3 years ago
9

Tomas wrote the equation y = 3x +3/4. When Sandra wrote her equation, they discovered that her equation had all the same solutio

ns as Tomas’s equation. Which equation could be Sandra’s?
–6x + y = 3/2
6x + y = 3/2
–6x + 2y = 3/2
6x + 2y = 3/2
Mathematics
2 answers:
algol [13]3 years ago
5 0
In order for Sandra's equation to have all the same solutions as Tomas's equation they need to lie on each other or in other words to be exactly the same.

So now we need to transform options in tomas equation form and compare.

First option:
y = 6x + 3/2    not the same

Second option:
y = -6x + 3/2   not the same

Third option:
-6x + 2y = 3/2   when -6x goes on other side it changes its sign and will become:
2y = 6x + 3/2
when we divide by 2 we get
y = 3x + 3/4 which marks with Tomas's equation

Answer is third option.
mamaluj [8]3 years ago
4 0
–6x + 2y = 3/2

or, 2y= 6x + 3/2
or, y= (6x + 3/2)/2
or, y = 6x/2 + 3/4
or, y = 3x + 3/4

Therefore, –6x + 2y = 3/2 is Sandra's equation.  


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3 years ago
If a gallon of milk costs $5.25 now and the price is
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Answer: It will take approximately 21 years.

Step-by-step explanation:

6 percent of 5.25 is 0.315 (5.25 x 0.06 = 0.315)

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3 years ago
What is the slope of the line described by the equation below?
butalik [34]
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3 years ago
One long-distance company offers a plan such that each minute costs $0.10 and each call has a $0.25 service
gladu [14]

Answer:

<em>y=0.10(t)+0.25 </em>

<em>27 minutes and 30 seconds </em>

Step-by-step explanation:

We know that you start with 25 cents as a service fee, this is for making the call. For each minute you talk, 10 cents are added. Multiply the number of minutes spent by 10 cents a minute for the cost based on the call. Then add the 25 cents service fee.

If you talked for 5 minutes:

y=0.10(5)+0.25

y=0.50+0.25

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For three dollars, you would plug in 3 for y

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-0.25            -0.25

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divide both sides by 0.10 to get

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<em>EXPLANATION:</em>

Classification of numbers according to the Venn diagram:

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These numbers are represented by a fraction a / b, where a and b are integers and also b is different from zero.

<em>Whole numbers</em><em>:</em>

An integer is a natural number that can be positive or negative.

<em>Natural numbers:</em>

Natural numbers are those that start at zero to infinity are clearly positive.

<em>Rational numbers:</em>

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<em>Irrational Numbers:</em>

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