Answer:
581 pages
Step-by-step explanation:
Add the page numbers.
157+226+198=581
He read 581 pages.
This is how I would solve it:
1st # = x 4(x+1)=3x+18
2nd # = x+1 4x+4=3x+18
4x=3x+14
x=14
To check: 15x4=60; 60-42=18. <u>1st # = 14; 2nd # = 15.</u>
Answer:
12.
Step-by-step explanation:
Average rate of change = (value of the function when x = 9 - value when x=3)
/
(9 - 3)
= f(9) - f(3) / (9-3)
= (9^2 - 3^2) / (9-3)
= 72 / 6
= 12.
No. to see if two ratios form a proportion, you need to convert them into fractions, reduce, and if they are both the same they form a proportion. when reducing 6/14 and 7/19, you get 3/7 and a decimal, not equal to each other. therefore, these ratios do not form a proportion
