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Oksi-84 [34.3K]
3 years ago
15

REWARDING BRAINLY

Mathematics
1 answer:
valina [46]3 years ago
4 0
REWARDING BRAINLY
Which question could be answered using a measure of center?

How many students got an A on their last math test?

If a wrestling team was put in order from lowest to highest weight class, in what weight class would the wrestler in the middle be?

What is the difference between the highest and lowest grades on last year’s Algebra I exam?

What is the range of shoe sizes in the middle school?
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Tobin rows 2 miles per hour faster than her opponent. If it takes Tobin 30 minutes to finish a race, and it takes her opponent 4
Sunny_sXe [5.5K]
If we represent Tobin's speed as x, we can write her opponent's speed as 
x-2 (since Tobin is 2 more than them). In addition, since it's in miles per hour, and 45 minutes is 3/4 of an hour, we can say that 3/4ths of her speed in miles per hour is how long the race is, so (3/4)(x-2)=distance of race. In addition, since it only took Tobin 30 minutes, and 30 minutes is half an hour, x/2 (half of her miles per hour) is the length of the race, so (3/4)(x-2)=(1/2)x. Expanding it, we get 3x/4-6/4=x/2. Subtracting x/2 (or 2x/4) from both sides, we get x/4-6/4=0 and by adding 6/4 to both sides we get x/4=6/4. Multiplying 4 to both sides, we get that x=6=Tobin's speed in miles per hour
6 0
3 years ago
Help help help help please
kykrilka [37]

Answer:

b

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b is the right answer

it is

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Vika [28.1K]

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Step-by-step explanation:

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