5/6 of an hour is 50 minutes. 50 (time) divided by 8 (tasks) is 6.25. So, it takes the robot 6 minutes and 15 seconds (.25 of a minute is 15 seconds) to complete one task. Now, just divide 60 by 6.25. It's 9.6. Since a robot cannot complete .6 of a task, the robot only completes 9 tasks in an hour.
I believe 3cm.
Does it have any options? you may have to round up or down.
Answer:
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Step-by-step explanation:
Using a system of equations, it is found that the total amount of money the two ladies spent was of $782.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the variables are:
- Variable x: Amount Mrs. Smith had initially.
- Variable y: Amount Mrs. Wilson had initially.
Mrs smith had $46 more than Mr.s Wilson at first, hence:
x = y + 46.
Mrs Wilson spent 4/7 of her money on some clothes and, and Mrs. Smith spent 3/5 of her on household items, then they remained with an equal amount, so:
Since x = y + 46, we have that:
14(y + 46) = 15y
y = 14 x 46
y = $644
x = 644 + 46 = $690
Hence the amount they spent is given as follows:
More can be learned about a system of equations at brainly.com/question/24342899
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