Answer:
The wide would be 7.2 cm
Step-by-step explanation:
Let
x------> the wide of the proportional wall map
we know that
Using proportion
45/27=12/x
x=27*12/45
x=7.2 cm
It is growing at a rate of 9%.
The exponential equation is in the form
f(x) = a*(1+r)ˣ, where a is the initial value, r is the growth rate written as a decimal number, and x is the number of time periods. 1.09 is in the place of 1+r; this means r = 0.09 or 9%. Since we have a number greater than 1, it is increasing.
Answer:15 billion
Step-by-step explanation:10+5=15
Answer:
x=3 or x=-3
Step-by-step explanation:
1x-8=-5
Add 8 on both sides
x=3
OR
-x-8=-5
Add 8 on both sides
-1x=3
Divide -1 on both sides
x=-3
