Answer:
16
Step-by-step explanation:
5y=6x+16...(I) and 9x=7y-20....(ii)
Using substitution method:
Multiply equation ii by 5
45x=35y-100
Substitute (I) into ii
45x=7 * 5y - 20
45x=7(6x+16)
45x=42x+112
45x-42x=112
3x=112......…….......
5y=6x+16
5y=2*3x+16
5y=2*112+16
5y=224+16
5y=240
Divide both sides by 5
y=48
3x-2y
112-2*48
112-96
16
Answer:
90
Step-by-step explanation:
Sophia has not even completed 1 book. She has managed to complete 83% of the book.
<u>Explanation:</u>
Given:
Time taken to read one book = 1/5
Total weeks for which sophia read = 1/6
Number of books, z = ?
Total weeks = z X time taken to read one book
![\frac{1}{6} = z X \frac{1}{5} \\\\z = \frac{5}{6} \\\\z = 0.83](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B6%7D%20%20%3D%20z%20X%20%5Cfrac%7B1%7D%7B5%7D%20%5C%5C%5C%5Cz%20%3D%20%5Cfrac%7B5%7D%7B6%7D%20%5C%5C%5C%5Cz%20%3D%200.83)
Therefore, sophia has not even completed 1 book. She has managed to complete 83% of the book.
7200 Kilometers in two hours. 4,320 kilometers in 6 hours.
Answer: its false
Step-by-step explanation: