Answer: the second bubble down the first row
Step-by-step explanation:
when you plan the coordinate you need to use 1,2,3,4 to get the simplest answers.
Answer:
9 Model As.
Step-by-step explanation:
Let A represent Press A and let B represent Press B.
So, they own 14 total presses. This means that:
![A+B=14](https://tex.z-dn.net/?f=A%2BB%3D14)
They can print 905 books per day, in other words, since A prints 70 per day and B prints 55 per day:
![70A+55B=905](https://tex.z-dn.net/?f=70A%2B55B%3D905)
This is now a system of equations. Solve by substitution. From the first equation, subtract B from both sides:
![A=14-B](https://tex.z-dn.net/?f=A%3D14-B)
Substitute this into the second equation: "
![70(14-B)+55B=905](https://tex.z-dn.net/?f=70%2814-B%29%2B55B%3D905)
First, we can divide everything by 5 to simplify things:
![14(14-B)+11B=181](https://tex.z-dn.net/?f=14%2814-B%29%2B11B%3D181)
Distribute the left:
![196-14B+11B=181](https://tex.z-dn.net/?f=196-14B%2B11B%3D181)
Combine like terms:
![-3B+196=181](https://tex.z-dn.net/?f=-3B%2B196%3D181)
Subtract 196 from both sides:
![-3B=-15](https://tex.z-dn.net/?f=-3B%3D-15)
Divide both sides by -3
![B=5](https://tex.z-dn.net/?f=B%3D5)
So, the company has 5 Model B presses.
Which means that the company has 14-5 or 9 Model A presses.
And we're done!
Answer:
16,25,30,49
25+30=55
55÷2=27.5
Step-by-step explanation:
median means the middle value of any set of data so first arrange the data into ascending order.
16, 25, 30, 49
the data is even so we take both the middle value , add it and divide it with 2
25+30=55
55÷2=27.5
Answer:
n = ⅜
Step-by-step explanation: