2 years ago

The Sum of 8 and 7 doubled

Mathematics

2 answers:

Zina [86]2 years ago

6 0

30 because you add 8 and 7 then add it by itself or multiply it by 2

coldgirl [10]2 years ago

3 0

Well, seven plus eight is fifteen. And fifteen plus fifteen in thirty, so 30 is your answer. ( :

You might be interested in

What are some examples of a linear system

Zina [86]

Answer:

Describe the middle class of Central America. Mention jobs, homes, and education.ury

Step-by-step explanation:

8 0

2 years ago

You are paid $119 for 8 1/2 hours of work. What is your rate of pay?

mixer [17]

14 is the rate of pay

5 0

3 years ago

2x- 3y=9 5x+3y=12 How would i solve this? I dont understand this and i really need help with it!Also I have to graph the an

dedylja [7]

$\begin{cases} 2x- 3y=9 \\5x+3y=12 \end{cases}\\ + \ \ ------- \\ 7x=21 \ \ /: 7\\ \\x=\frac{21}{3}\\ \\ x=3 \\ \\2x- 3y=9$

$2*3-3y=9\\ \\6-3y =9\\ \\-3y=9-6\\ \\-3y=3 \ \ / :(-3)\\ \\x=-1\\ \\ \begin{cases} x=3\\y= -1 \end{cases}$

$graph\\ \\\begin{cases} 2x- 3y=9 \\5x+3y=12 \end{cases}\\ \\ \begin{cases} - 3y=-2x+9\ \ /:(-3) \\ 3y=-5x+12 \ \ /:3 \end{cases}\\ \\ \begin{cases} y= \frac{2}{3}x-3 \\ y=-\frac{5}{3}x+4 \end{cases}$