Answer:
2x-5y=8;x-3y=-1
Step-by-step explanation:
wellcome
Answer:
y=-2
Step-by-step explanation:
-7y+2=16
-2 -2
-7y=14
_____ <dividing line
-7 -7
y=-2
2. - Kevins average speed is 67.5 mph
Answer:
$19.85 tip
Step-by-step explanation:
To find the % of something simply turn 20% to a decimal (.2) then times it by the number you want .2 * 99.25 = 19.85
Answer:
Nolan took <u>100</u> seconds.
Step-by-step explanation:
Given:
Kong took 15%, percent fewer seconds than Nolan took to complete his multiplication timed test.
Kong took 85 seconds.
Now, to find the number of seconds Nolan take to complete the test.
Let the number of seconds Nolan take be 
Kong took = 85 seconds.
As, given Kong took 15%, percent fewer seconds than Nolan took.
Now, to get the number of seconds Nolan took:




<em>Dividing both sides by 0.85 we get:</em>

Therefore, Nolan took 100 seconds.