im assuming you wrote 4logsx instead of 4log5x here
Answer is a) log5x = 7
Just diving both sides by 4 to isolate the log
C. 42/6 is 7 and 60/6 is 10. If you divide the numbers by the multiple choice answers, then eventually you will get a whole number that is the lowest possible choice.
Answer:
- after 5 years, rich : poor = 11.0 : 6.7
- after 10 years, 12.2 : 9.0
- 35.3 years
Step-by-step explanation:
It is convenient to let a graphing calculator show the answers to these questions.
The exponential equation modelling the growth will be of the form ...
f(x) = (initial value) × (1 +growth rate)^x
Richland's GDP/person can be modeled by r(x) = 10·1.01^x
Poorland's GCP/person can be modeled by p(x) = 5·1.03^x
The attached graph shows values for x=5, 10 and r(x)=p(x).
It will take about 35.3 years for Poorland to catch up.
Answer:
18
Step-by-step explanation:
Each page has 6 stamps. There are 3 pages. This is a simple multiplication problem, and so you do 3x6 to find the total number of stamps Kyle has. Thus, 3 times 6 is 18.
visual:
Page One: 6 stamps
Page Two: 6 stamps
Page Three: 6 stamps
6 + 6 + 6 = 18 (or just do 6x3)
Given f(0)=3, we know the y intercept (when x equals 0) is 3
We then want to find the slope
We will use the slope formula m = (y2 - y1)/(x2 - x1)
m = (-7-3)/(2-0)
m = -10/2
m = -5
We can now plug in our slop and y-intercept into our slope-intercept form
y=mx+b
y = -5x + 3
