How to solve: (15x10)-(3x3)
Answer(hopefully is right): 291
127 = 100 +27
32 = 30 +2
so 127 x 32 = (100 + 27) x (30+2) = (100x30) + (100x2) + (27x30) +(27x2)
= 3000+200+810+54 = 4064
second way:
127 = 100 + 27
127 x 32 = (100+27) x 32 = (100x 32) + ( 27x32) = 3200 + 864 = 4064
Set up a system of equations:
x + y = 0.6
x - y = 7.2
You can solve using elimination. Add the two equations together:
2x + 0y = 7.8
2x = 7.8
x = 3.9
Then plug the number back into either of the two original equations to solve for y:
3.9 + y = 0.6
y = -3.3
The two numbers are 3.9 and -3.3
Answer:
Step-by-step explanation:
On the map, 3 inches = 10 miles in real life.
Therefore:
10 miles: 3 Inches
If the real-life distance between two buildings is 53.25 miles
Distance on the map
The distance between the two buildings on the map is therefore:
Well, this equation as a sum would be -46.38 + -24.6
so the answer would be -70.98.
I hope this helps, and have a fantastic day!
