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Firlakuza [10]
3 years ago
10

Math question: Solve for y: 2x-y=3

Mathematics
1 answer:
Illusion [34]3 years ago
3 0

Answer:

y=2x-3

Step-by-step explanation:

This is just algebraic manipulation. In order to solve for y, you need to isolate it. Start this by moving the 2x from the left side of the equation. You can do this by subtracting 2x from both sides and you should end up with:

-y=-2x+3

After this, you still have a negative y, which means you just need to divide both sides of the equation by -1 to get rid of the negative. That should reverse the signs of all the variables in the equation, making it look like:

y=2x-3

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2/3x+7=5/6<br> Rewrite the equation below so that it doesn’t have fractions please.
kipiarov [429]

To eliminate all of the fractions in an equation, we can multiply the equation by the least common denominator of all of the fractions in the equation. To find the LCD, we need to find a number that has at least all of the factors of each of the denominators.


To find the LCD of the fractions in this equation, let's look at our denominators, 3 and 6. We can say 3 = 3 and 6 = 2 * 3. By examining this, we can see that our LCD <em>has to have </em>a 3 and 2, since those numbers are found in at least one of the fractions. Thus, our LCD is 3 * 2 = 6.


Now we know to multiply our entire equation by 6. This is solved as shown:

6(\dfrac{2}{3}x + 7) = 6(\dfrac{5}{6}) \Rightarrow \boxed{4x + 42 = 5}


Our answer is 4x + 42 = 5.

5 0
4 years ago
Which could be the measure of three angles of an acute triangle?
kvasek [131]

Answer: B: 70, 80, 30

Step-by-step explanation:

An acute triangle has all 3 angles at less than 90 degrees, therefore the answer is B because its the only one that has all three at <90

6 0
4 years ago
A distribution has the five-number summary shown below. What is the range
Nady [450]

Option D : 54 is the range of the distribution

Explanation:

The given distribution is 21, 32, 49, 67, 75

The range of the distribution is the difference between the highest value and the lowest value in the distribution.

From the given data, we can see that,

Highest value = 75

Lowest value = 21

The range can be determined by subtracting by the highest value and the lowest value.

Thus, we have,

Range = Highest value - Lowest value

Range = 75 - 21

Range = 54

Thus, the range of the given distribution is 54.

Hence, Option D is the correct answer.

7 0
3 years ago
Sara selects two of the seven colors of the rainbow, one after another, with replacement. What is the probability that the first
Vesna [10]
The two events are independent, because the selection of the first color (red) does not modifiy the probabilities of the second color (orange). Then the combined probability is the product of the two independent events:

1/7 * 1/7 = 1 / 49

Answer: option C. 1/49
6 0
3 years ago
The radius of a circle is 8 meters. The circumference of the circle is 50.24 meters. True False
Ierofanga [76]
The answer is True

<span>r=8 meters </span>

<span>2*pi*r </span>

<span>2*3.1415*8 = 50,24 </span>
6 0
4 years ago
Read 2 more answers
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