This is simultaneous equation btw if you want to search up the lesson
3m-n=5
2m+5n=7
multiple the first equation by 5 so it could be equal to the second equation
15m-5n=25
2m+5n=7
the -5n and +5n cancel each other!
so it’s
15m=25
2m=7
(add the equations together)
17m=32
m=1.8
now take an equation from above (the original ones)
3m-n=5
3x1.8-n=5
5.4-n= 5
n= 0.4
ANSWER:
m= 1.8
n=0.4
The doll house is 75/100 high because 6/10 is equal to 60/100 and 60/100 + 15/100 = 75/100
Answer:
168 cm.
Step-by-step explanation:
If each book has an equal distance of 12 cm and total books are (20-6) = 14
then, total distance is (12*14) = 168.
I hope this is correct. Feel free to correct me if I'm wrong.
