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VladimirAG [237]
2 years ago
8

BRAINLIEST!!! he dot plot shows predictions for the winning time in the​ 200-meter sprint. The winner finished the race in 22.2

seconds. What is the greatest percent error among the​ predictions?
The greatest percent error among the predictions is

Mathematics
1 answer:
Alenkasestr [34]2 years ago
7 0

Answer: Approximately 3.15%

Explanation:

The true finishing time is 22.2 seconds. The prediction furthest from this is 22.9 seconds. This is a difference of 22.9-22.2 = 0.7 seconds. Divide this over the true time value to get (0.7)/(22.2) = 0.03153 which is approximate.

Move the decimal point to the right 2 spots to get to 3.153%; round this value however you need to.

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State whether each pair of expressions are equivalent. Show your work.
wolverine [178]

Answer:

Both of them are NOT equivalent.

Step-by-step explanation:

Use the distributive property to see if 5(x - 1) and 5x - 1 were equivalent.

5(x - 1)

= 5x - 5

This tells us 5(x - 1) is not equivalent to 5x - 1.

6 0
3 years ago
I could use some help on this​
Slav-nsk [51]

Answer:

A

Step-by-step explanation:

The length of CD represents the distance between the points C and D. Counting the points between them, if we start from point D, we need to get through points 1, 2, and 3 to get to C. That is 3 units, or A

5 0
3 years ago
Denise has taken four math tests this semester and
Viefleur [7K]

Answer:

93

Step-by-step explanation:

Setup an equation. Add the 5 tests together, the unknown test will be represented by x, Since there are 5 tests total, you will divide by 5. to find the average.

\frac{89 + 85+96+87+x}{5} = 90

To solve first multiply both side by 5.

(5) \frac{89 + 85+96+87+x}{5} = 90 (5)

89 + 85+96+87+x = 450

Add the left side and then solve for x

357 + x = 450

Subtract 357 from both sides

357 - 357 + x = 450 - 357

x = 93

The last test has to be a score of 93 to get an average of 90.

4 0
2 years ago
If it takes 16 faucets 10 hours to fill 8 tubs, how long will it take 12 faucets to fill 9 tubs?
Elza [17]
Workers.time/jobs = 16.10/8 = 20 then you must do the same for the other one. 12.t/9 = 20 
Multiply both sides by 9 
12T= =180 then divide both sides by 12 
T= 15 hours

6 0
3 years ago
HELP PLEASE WILL GIVE BRAINLIEST
Ksju [112]

Answer:

The answer is 50.5

7 0
3 years ago
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