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katrin [286]
3 years ago
12

Why do you think rates are usually written as unit rates?

Mathematics
2 answers:
stellarik [79]3 years ago
6 0
Coooooooooooooooooooooool
Elden [556K]3 years ago
6 0
It's so you can compare two rates

For example, 
person A walks 10 miles in 2 hours
person B walks 40 miles in 4 hours

If you want to know who is the faster walker, then you divide the distance over the time
person A's speed = distance/time = 10/2 = 5 miles per hour
person B's speed = distance/time = 40/4 = 10 miles per hour

So we can see that person B is faster as 10 is larger than 5. This is only possible by comparing the unit rates of 5 mph (for person A) and 10 mph (for person B)
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How do you factor this trinomial 4a^2-4a+1
ElenaW [278]

Answer:

(2a-1)(2a-1)

Step-by-step explanation:

To write the factored form, multiply a*c from the standard form ax^2+bx+c. Here it is 4*1 = 4.

Then find factors of 4 that add to b=-4.

4: 1,2,4

-2+-2 = -4

Split the middle term into -2x+-2x and factor by grouping.

4a^2-2a+-2a+1\\(4a^2-2a)+(-2a+1)\\2a(2a-1)-1(2a-1)\\(2a-1)(2a-1)


4 0
2 years ago
The product of g and 4 is 88<br> x= ?
Evgesh-ka [11]

Answer:

x = 22

Step-by-step explanation:

22 x 4 = 88

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EastWind [94]
Your answer is 4.83
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STatiana [176]
It’s the last one 7 sqrt5+8sqrt2/27
6 0
3 years ago
Is the answer A or C?
Phantasy [73]

Answer:

it's C

Step-by-step explanation:

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