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malfutka [58]
4 years ago
15

a high school reports that it’s student sat scores were down by 9% in one year. The next year, however, the test scored rose by

20%. The high school principal announces, overall, test scores have improved by 11% over the past two years.
Mathematics
1 answer:
STALIN [3.7K]4 years ago
8 0
Hxhxhzuzdisusususususysysy 1st dyssuusd
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Yuri [45]
There you go! Hope this helps

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3 years ago
Which of the following are square roots of the number below 529?
exis [7]
<span>-10 
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</span><span>100 ^1/2 </span>
4 0
4 years ago
HELP PLEASE ILL MARK BRAINLIEST
gavmur [86]

Answer:

B. \frac{3+\sqrt{29} }{2}

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4 0
3 years ago
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The width of a rectangular block of land is 2/7 of its length. If it’s perimeter is 252m, find it’s length.
Anna007 [38]

Answer:

Step-by-step explanation:

the  perimeter is : p = 2(x+y)..... x : width     y : length

you have the system ;  2(x+y) = 252.......(1)

                                       x = (2/7) y ...........(2)

                                       y > x ....(3)

Substitute x = (2/7) y  into (1) and simplifiy and solve for y :

(2/7) y + y = 126

(2y+7y)/7 = 126

9y = 882

y = 98 m  ( the length )

3 0
4 years ago
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