Answer:
-9 = y
Step-by-step explanation:
-45=5y
Divide each side by 5 to isolate y
-45/5=5y/5
-9 = y
Answer:
The 2 numbers are 14 and 17.
Step-by-step explanation:
Let the 2 numbers be x and y.
x + 11 = 2y
x - 2y = -11...............A
y +20 = 2x
2x - y = 20 ...............B
Multiply equation A by -2:
-2x + 4y = 22............C
Adding B and C :-
3y = 42
y = 14.
Substitute y = 14 in equation A:
x - 2(14) = -11
x = -11 + 28
x = 17.
Answer:
13, 587 times
Step-by-step explanation:
Population of City A
= 1.9 * 105 = 157.5
Population of City B
= 1,070,000
Population of City C
= 2 * city B
= 2 * 1,070,000
= 2,140,000
The population of City C is how many times the population of City A?
City C = x * City A
2,140,000 = x * 157.5
x = 2,140,000 / 157.5
x = 13587.30
The population of City C is 13587.30 times the population of City A.
Hope this helps :)
Answer:7.98403194 m / s
and i dont know how to work it out because I did it in my head
Step-by-step explanation:
Answer:
1/10
Step-by-step explanation:
7/10
= .7
