Answer:


Step-by-step explanation:
Given the system of linear equations


solving by the elimination method







so

now solving for y












Subtraction: get how many units a number exceeds the other
<span>Division: lets you know how much a number is larger (or smaller) than the other.</span>
The unit rate is 15 meters per second.
60 / 4 = 15
I hope this helps :)
Answer:
You must have all A's for Honor roll.
Step-by-step explanation:
My sister is in it and she has all A's
Answer:
Robyn model makes more sense and Marks is nonsense.
Step-by-step explanation:
In this question ,calculations not required .All we have to do is consider each model logically .
Marks
Marks model shows 20 rather than 2 which means 200 is 10 times as much as 20. It does not make any sense.
Robyn
Robyn model shows 2 which means 200 is 100 times as much as 2 and this is not only correct but also makes sense because 100 *2=200