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lara31 [8.8K]
3 years ago
5

Given the speeds of each runner below, determine who runs the fastest.

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Answer:

Debbie runs 9 feet per second: 9 ft/s

Jessica runs 1 mile  in 440 seconds: 414/50 ft/s = 207/25 ft/s = 8 7/25 ft/s

jesssica runs 131 feet in 10 seconds: since 1 mile = 5280 ft we have 1/470 mi/s = 5280/470 ft/s = 528/47 ft/s = 11 11/47 ft/s

ron runs 603 feet in 1 minute: 547 ft/min = 603/60 ft/s = 201/20 ft/s = 10 1/20 ft/s

Since:

11 11/47 > 10 1/20 > 9 > 8 7/25

Emily runs the fastest.

You might be interested in
An assembly line with 17 tasks is to be balanced. The longest task is 2.4 minutes, and the total time for all tasks is 18 minute
Maurinko [17]

Answer:

Minimum cycle time = time for longest task = 2.4 minutes

Maximum cycle time = sum of the times to complete all the tasks = 18 minutes

Step-by-step explanation:

For the minimum cycle time, the reasoning is that all the tasks can be done simultaneously, at some during the assembling task. Hence, minimum time to complete one cycle is the time it takes to complete task that takes the longest time to complete.

For the maximum cycle time, the reasoning here is that each task is done after the completion of the previous task. The total time taken to finish the task will then be the sum of the time taken to complete each task. This usually is at the beginning of operations.

6 0
3 years ago
Suppose that an angle is bisected to form two smaller angles that measure (3+30)° and (5+6)° . What is the measure of the origin
Morgarella [4.7K]

Based on the angles addition theorem, the measure of the original angle = 44°.

<h3>What is the Angles Addition Theorem?</h3>

The angles addition theorem states that if an angle is bisected to form two smaller angles, then the sum of the measures of the two smaller angles equals the measure of the original angle that is bisected.

Given that the two smaller angles formed when bisected are: (3+30)° and (5+6)°. Based on the angles addition theorem:

The measure of the original angle = (3+30)° + (5+6)°

The measure of the original angle = 33° + 11°

The measure of the original angle = 44°

Learn more about the angles addition theorem on:

brainly.com/question/13545681

#SPJ1

3 0
2 years ago
What is 2\3y plus y minus 4 equals 31
steposvetlana [31]

Hi


2/3 y+y-4=31

Simplify both sides of the equation

2/3 y-4=31

Combine like terms

(2/3 y+y)+(-4)=31

5/3 y-4=31

Add 4 to both sides

5/3 y-4+4=31+4

5/3 y=35

Multiply both sides 3/5

(3/5)*(5/3 y)=(3/5)*35

y=21


I hope that's help !

8 0
3 years ago
Read 2 more answers
Please help m solve this it's about shaded areas. I need it fast. PLZ HELP THANK YOU IF YOU DO AND U R SO AMZING IF U DO&gt;
sukhopar [10]

A = area of the circle

A = pi*r^2

A = pi*11^2

A = 121pi

-----

B = area of the rectangle

B = length*width

B = 6*4

B = 24

-----

C = blue shaded area

C = A - B

C = 121pi - 24 which is the exact area in terms of pi

C = 356.1327 is what you'd get if you used a calculator

C = 356.13 is the result after rounding to the nearest hundredth

<h3>The final answer is 356.13</h3>
5 0
4 years ago
Adding and Subtracting Positive and Negative Fractions and Decimals. Estimate each problem to check if the students answer is re
AnnyKZ [126]
The answer is 3 1/2 or in decimal form it is 3.5
8 0
3 years ago
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