3 years ago

Order each step and justification that is needed to dove the equation below. 2/3y+15=9

Mathematics

1 answer:

WINSTONCH [101]3 years ago

7 0

Answer:

y=-9

Step-by-step explanation:

multiply 2/3 to both sides, and subtract 15

brainliest answer please

You might be interested in

Solve the following quadratic equation by completing the square: x² + 12x = 15

Lerok [7]

Answer:

x = -1.14 or -13.14

Explanations:

The given equation is:

$x^2+12x\text{ = 15}$

Find the half of 12, and add the square to both sides of the equation.

That is add 6² to both sides

$x^2+12x\text{ + 6}^{2}\text{ = 15 + 6}^{2}$ $\begin{gathered} (x+6)^2\text{ = 15 + 3}6 \\ (x+6)^2\text{ = 51} \\ \end{gathered}$

Find the square root of both sides:

$\begin{gathered} \sqrt[]{(x+6)^2_{}}=\pm\sqrt[]{51} \\ \text{x + 6 = }\pm\sqrt[]{51} \\ x\text{ = -6 }\pm\sqrt[]{51} \\ \text{x = }-6\pm7.14 \\ x\text{ = -6+7.14 = }1.14 \\ x\text{ = -6 - 7.14} \\ \text{x = -13.14} \end{gathered}$

x = -1.14 or -13.14

3 0

1 year ago

Mandy took a total of 6 quizzes over the course of 3 weeks at this rate, after attending 5 weeks of school this quarter how many

Over [174]

Answer:

6 quizzes

Step-by-step explanation:

3 divided by 6 is 2 so 2 quizzes per week. attending two more weeks would add 4 more quizzes. By now mandy will have taken 6 quizzes in five weeks.

6 0

3 years ago

What is 5 raised to the 5th power?

Roman55 [17]

Five raised to the fifth power 5^5 5*5*5*5*5 = 3,125

8 0

3 years ago

Read 2 more answers

The deer population in a national wildlife refuge has been decreasing by 5% each year.

mestny [16]

Answer:

750 $(1-\frac{5}{100})^{n}$

Step-by-step explanation:

3 0

3 years ago

A=b=c=0.8 Area (trigonometry)

attashe74 [19]

Answer:

Step-by-step explanation:

5 0

3 years ago