Answer:
The number is equal to 10
Step-by-step explanation:
Let x be the number
4(x-3)=28
x-3=7
x=10
In standard notation it would be, 758*10^6
ANSWER
a=9
EXPLANATION
The given quadratic equation is
If x=1 is a solution, then it must satisfy this equation:
Therefore the value of 'a' is 9
4x-7=7x-61
-7=3x-61
54=3x
Answer
X=18
P = i(1 + r)^t, where P is the amount of population to expect, i is the initial population number, r is the rate of increase, and t is time in years. P = 400(1 + .58)^15. ---> P = 400(1.58)^15 = 381, 870.6633, but you can't have half of an animal, so you round it up to 381, 871