Tina solved 15 hard puzzles.
We can use the system of equations:
X represents the easy puzzles
Y represents the hard puzzles
x+y=50
3x+6y=195 (I just divided everything by 10 to make things easier)
Then I multiplied the first equation by -3 to be able to cross out x and solve for y.
So now we have -3x-3y=-150.
Now we can add the equations together and we get:
-3x-3y=-150
3x+6y=195
+________
3y= 45
y=15.
That means that Tina solved 15 hard puzzles and 45 easy puzzles.
Hope this helps! (Plz thank)
Answer:
If coal consumption remained constant, coal production Stayed the same
Answer:
good question
Explanation:
according to go0gle: the condition that distinguishes animals and plants from inorganic matter, including the capacity for growth, reproduction, functional activity, and continual change preceding death.
...but honestly who will ever know?
Dressing in layers means to wear the appropriate clothing for the season such as fall and winter. For example many wear several pieces of clothing on top of one another When the weather is cold you should dress in layers.
I agree. because you never know. you might go to the career and you dont like so you have to research about it to get a great job