Step-by-step explanation:
<h2>using ELIMINATION method</h2>
10x-8y=20
4x+8y=36
14x=56
x=56/14
x=4
<h3>
NOW FOR Y.</h3>
10(4)-8y=20
40-8y=20
-8y=20-40
-8y=-20
y=-20/-8
y=2.5
<h2>
MARK ME BRAINLIEST PLS!!</h2>
Answer:
50 cups
Step-by-step explanation:
ratio of water to juice = 10 : 6 = 5 : 3
amount of cup = (5 x 30) / 3 = 50
Answer:
cocomelon . 3/5 - 4
Step-by-step explanation:
Answer:
Step-by-step explanation:
According to the empirical rule, the 95% confidence interval for the true population proportion is given by :-
Given : . The survey resulted in a sample proportion of p′=0.14, with a sampling standard deviation of σp′=0.02, who preferred reading an e-book.
Then, the 95% confidence interval for the true proportion of adults who prefer e-books will be :-
Hence, the 95% confidence interval for the true proportion of adults who prefer e-books=
Answer:
b = t + 45
Step-by-step explanation:
Position of hot air Ballon = 45 meters above tall seat building ;
Height of tall seat building = t
Height of Ballon, b = height of tall seat building + 45 m
Hence,
b = t + 45