The Lewis family and the Perry family each used their sprinklers last summer. The water output rate for the Lewis family's sprinkler was 15 L per hour. The water output rate for the Perry family's sprinkler was 40 L per hour. The families used their sprinklers for a combined total of 65 hours, resulting in a total water output of 1850 L . How long was each sprinkler used
Answer:
Hours of use of sprinkler by Lewis family is 30 hours.
Hours of use of sprinkler by Perry family is 35 hours.
Step-by-step explanation:
Let W = hours of use by Lewis family
65 - W = hours of use by Perry family
Then;
15W + 40*(65 - W) = 1850
15W + 2600 - 40W = 1850
(15 - 40)W = 1850 - 2600
-25W = −750
W = 750/25 = 30
Therefore;
W = 30
65 - W = 65 - 30 = 35
Hence,
Hours of use by Lewis family is 30 hours.
Hours of use by Perry family is 35 hours.
Answer:- A.The independent variable is the input variable and should be represented by the x-axis.
Explanation:-
A. Correct.
B. Not correct.
<u>Reason</u>:- The independent variable is the input variable and should be represented by the x-axis.
C. Not correct.
<u>Reason</u>:- The dependent variable is the output variable and should be represented by y-axis.
D. Not correct.
<u>Reason</u>:-The dependent variable is the output variable and should be represented by y-axis.
Answer:
-4
Step-by-step explanation:
its closer to -4
Answer:
B
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Step-by-step explanation:
The combined revenue for the movies in scientific notation is 
.
The given parameters;
- <em>first revenue made from the movie, = $352,000,000</em>
- <em>second revenue made from the movie, = $4,800,000</em>
The combined revenue from the movie is calculated by adding the two revenues together as shown below;
Total revenue = $352,000,000 + $4,800,000
Total revenue = $356800000 =
Thus, the combined revenue for the movies in scientific notation is
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