Answer:
Step-by-step explanation:
What we have is a general equation that says this in words:
Laura's hours + Doug's hours = 250 total hours
Since we don't know either person's number of hours, AND since we can only have 1 unknown in a single equation, we need to write Laura's hours in terms of Doug's, or Doug's hours in terms of Laura's. We are told that Doug spent Laura's hours plus another 40 in the lab, so let's call Laura's hours "x". That makes Doug's hours "x + 40". Now we can write our general equation in terms of x:
x + x + 40 = 250 and
2x = 210 so
x = 105
Since Laura is x, she worked 105 hours in the lab and Doug worked 40 hours beyond what Laura worked. Doug worked 145. As long as those 2 numbers add up to 250, we did the job correctly. 105 + 145 = 250? I believe it does!!
Answer:
Step-by-step explanation:
1.
I think the pictures can be matched to the name without knowing the name when a person has already gotten familiar with other works from the particular country or region. Over time, we tend to subconsciously name and or identify things we're seeing for the first time due to having previous knowledge about what something that's closely related to it looks like.
2.
I think yes, it has good community contributions because they have put their respective countries out on the map due to their fantastic artwork. Without these designs, we might not have known the places as much as we do know them now.
Yes it does mean the whole fraction is negative
tysm luv this #FleePointsForFlee thing!!!!! :))))
Answer:
x=4
Step-by-step explanation:
5x-4x+2=6
x+2=6
x=6-2
x=4
