Answer: 3 miles per hour
<u>Step-by-step explanation:</u>
Use the formula "distance (d) = rate (r) x time (t)" to create a system of equations.
Let "r" represent the rate they are rowing
Let "c" represent the current
time rate distance <u>EQUATION</u>
Downstream: 4 hours r + c 40 miles 4(r + c) = 40
Upstream: 10 hours r - c 40 miles 10(r - c) = 40
Distribute, then eliminate r to solve for c:
Down: 4r + 4c = 40 → 5(4r + 4c = 40) → 20r + 20c = 200
Up: 10r - 10c = 40 → -2(10r - 10c = 40) → <u>-20r + 20c</u> =<u> -80</u>
40c = 120
<u> ÷40 </u> <u>÷40 </u>
c = 3
The purpose of using slang is mostly for social purposes such as:
- It is use as a kind of identity identify for any members of a group.
- It is often used to oppose an already set up authority.
<h3>What is the use of slangs about?</h3>
Slangs is often used in the Sharing and keeping of a constantly altering vocabulary aids.
It is used to show group solidarity and it is often used to include or exclude members.
The common sports slangs are:
- “Game of inches”
- “Lost a step”
- “The ball is in their court”
Learn more about Slangs from
brainly.com/question/476021
#SPJ1
Step-by-step explanation:
Orlando I think right?
18 feet and 1 once because there is a 8 inch difference between the boys height and his shadows height so it would be the same difference for the telephone pole making it 18 feet and 1 inch. :)
