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3 years ago

Y=3x+12 positive or negative

Mathematics

1 answer:

jolli1 [7]3 years ago

5 0

Answer:

x = -4 thus negative

Step-by-step explanation:

Solve for x:

3 x + 12 = 0

Hint: | Isolate terms with x to the left hand side.

Subtract 12 from both sides:

3 x + (12 - 12) = -12

Hint: | Look for the difference of two identical terms.

12 - 12 = 0:

3 x = -12

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 3 x = -12 by 3:

(3 x)/3 = (-12)/3

Hint: | Any nonzero number divided by itself is one.

3/3 = 1:

x = (-12)/3

Hint: | In (-12)/3, divide 12 in the numerator by 3 in the denominator.

12/3 = (3×4)/3 = 4:

Answer: x = -4

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Answer:

cheeseburger is $3 and chips is $0.75

Step-by-step explanation:

Let price of cheeseburger be x while price of a bag of chips be y hence for the case of Nathan, we can write the equation as x+y=3.75. Similarly, for Jack, we can write it as 2x+3y=8.25

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Step-by-step explanation:

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Is 12/50 Grader than 4/5

Oliga [24]

Answer:

No, $\frac{4}{5}$ is greater than $\frac{12}{50}$ .

Step-by-step explanation:

The two fractions to be compared are given as:

$\frac{12}{50}$ and $\frac{4}{5}$

Now, in order to compare them, we need to make the denominator same for both the fractions and then compare their numerators.

LCD of 50 and 5 is 100. So, we try to make each denominator 100 and change the numerator accordingly.

We multiply the first fraction by $\frac{2}{2}$ and we multiply the second fraction by $\frac{20}{20}$ as given below:

$\frac{12\times 2}{50\times 2}=\frac{24}{100}\\\frac{4\times 20}{5\times 20}=\frac{80}{100}$

Now, the two new fractions are $\frac{24}{100}$ and $\frac{80}{100}$ .

Now, we check the numerators. The numerator that is larger among the two has the greater fraction value.

Here, 80 is greater than 24. So, fraction $\frac{80}{100}$ is greater than $\frac{24}{100}$ or $\frac{4}{5}$ is greater than $\frac{12}{50}$ .

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