Answer:
7, 1, -7, -1.
Step-by-step explanation:
5+1/2(14b-8) = -6
5 + 7b - 4 = -6
7b + 1 = -6
7b = -7
b = -1
So, your answer will be 7, 1, -7, -1.
Hope this helps!
Answer:
it took him 3 hours
Step-by-step explanation:
28 divideed by 4= 7
21divided by 7=3
Answer:
The year 1996
With population of both 21600
Step-by-step explanation:
From 1990 to 2000 = 10 years
So city A grew from 12000 to 28000 that is city A had an increase of 16000 in 10 years.
While city b grew from 18000 to 24000 , that's an increase of 6000 in 10 years to.
For city A
10 years= 16000
1 year = 16000/10
1 year = 1600
For city B
10 years = 6000
1 year = 6000/10
1 year = 600
So we are to find what year the both cities had same population.
12000 + x1600 = y
18000 + x600 = y
X is the year difference
Y is the population at that year
Eliminating y gives
6000= x1000
X= 6
If x is 6
18000+3600= y
21600= y
So 6 years + 1990 = 1996
For problems like this we can use algebra to help us, the farenheight 6 hours ago was:
(2xt)-6=-20
We have to balance the sides out, first we minus 6
2xt=-26
Now we can divide by 2
t=-13
We now know the temperature 6 hours ago was -13