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stellarik [79]
3 years ago
15

85 is what percent of 340

Mathematics
1 answer:
bagirrra123 [75]3 years ago
7 0
\frac{85}{340} *100=25

Always divide low by high then multiply by 100 to get your answer:
- - Answer: 25%

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the length of a rectangle is 8cm more than the width and its area is 172cm2 .find the width of the rectabgle
nikdorinn [45]
l-the\ length\\l+8-the\ width\\A=172\ cm^2\\\\A=lengtf\cdot width\\\\subtitute\\\\l(l+8)=172\\\\l^2+8l=172\ \ \ |subtract\ 172\ from\ both\ sides\\\\l^2+8l-172=0\\a=1;\ b=8;\ c=-172\\\\\Delta=b^2-4ac\\\\\Delta=8^2-4\cdot1\cdot(-172)=64+688=752 > 0\\\\l_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ l_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{752}=\sqrt{16\cdot47}=4\sqrt{47}\\\\l_1=\dfrac{-8-4\sqrt{47}}{2\cdot1}=-4-2\sqrt{47} < 0\\\\l_2=\dfrac{-8+4\sqrt{47}}{2\cdot1}=-4+2\sqrt{47} > 0\\\\The\ width:l+8=-4+2\sqrt{47}+8=4+2\sqrt{47}\\\\Answer:\boxed{length=(2\sqrt{47}-4)cm;\ width=(4+2\sqrt{47})cm}
length\approx9.71cm;\ width\approx17.71cm
4 0
3 years ago
What is two and a half added to four and a half?
soldier1979 [14.2K]

Answer:

7

Step-by-step explanation:

4 0
3 years ago
Answers for this paper plz
Anna [14]

Answer:

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d

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Step-by-step explanation:

6 0
3 years ago
Who want to help ???
Fiesta28 [93]
For a set of trials P_{desired}=\frac{desired}{total}. In this case our desired out come is all multiples of 3: 3,6,9 and 12. The total number of outcomes can be found as 100 by adding up all the frequencies. Thus our experimental probability is P_{x=3n}=\frac{6+14+12+1}{100}=\frac{33}{100}=33\%.
8 0
3 years ago
The smaller triangle is the image of the larger triangle after a dilation. The center of the dilation is (−3,−2). What is the sc
SIZIF [17.4K]

Try this option:

Scale_factor (s_f) is new_size:initial_size:

s_f=8/2=4

answer: 4

7 0
3 years ago
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