7) 29/9; repeating
8) 301/20; terminating
9) -101/20; terminating
Liz scored higher.
Step-by-step explanation:
Given,
Correct answers by Austin = 92%
Total questions = 50
Correctly answered by Liz = 47
Percent of Liz's correct answers = 
Percent of Liz's correct answers = 
Percent of Liz's correct answers = 
As 94% is higher than 92%, therefore;
Liz scored higher.
Keywords: percent, division
Learn more about division at:
#LearnwithBrainly
Answer:
a= 200
b = 210
Step-by-step explanation:
My assumption is, we have to find the length of sides of rectangle
Given
perimeter = 2a + 2b = 820 ft (i) (here a is smaller side and b is larger side)
area = a*b = 42,000 ft^2 (ii)
from eq (1)
2a + 2b = 820
=> 2(a+b) = 820
=> a+b = 820/2
=> a + b = 410
=> a = 410-b (iii)
putting the value of a in eq(ii), we get
(410-b) *b = 42,000
410b - b^2 = 42,000
0 = b^2 - 410b + 42000
b^2 - 410b + 42000 = 0
b^2- 200b- 210b + 42000 = 0
b(b-200)-210(b-200) = 0
(b-200)(b-210) = 0
or
b= 210 and b = 200
if b is larger side than b =210
By putting value of b in eq(iii),
a = 410 -210 = 200
The correct answer is B. 72 because you can multiply 3*6*4 to represent every combination possible.
