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FinnZ [79.3K]
4 years ago
6

Elsa got an 86% on her first test a 47/40 on her second test and a 0.89 on her third test which of the following orders hee scor

es from least to greatest
Mathematics
1 answer:
Shkiper50 [21]4 years ago
7 0
86%= 0.86, 47/40= 1.175, and 0.89 stays the same. Now that’s I’ve given you those answers you can try and order them from least to greatest! Hope this can help
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FromTheMoon [43]

Let

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y--------> the amount of 7\% solution

we know that

2\%=0.02\\7\%=0.07\\3.5\%=0.035

so

x+y=1

y=1-x -------> equation A

0.02x+0.07y=0.035 -------> equation B

substitute equation A in equation B

0.02x+0.07(1-x)=0.035

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0.05x=0.035

x=0.7\ liters

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therefore

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<u>the answer is</u>

A) The percent values were written incorrectly in the equation

B) The amount of 7% solution should be written as 1 – x, not x – 1.

8 0
3 years ago
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which of the following expresses the coordinates of the foci of the conic section shown below? (x-2)^2/4+(y+5)^2/9
elena55 [62]

Step-by-step explanation:

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Here a^2 is 9, b^2 is 4.

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So our foci is

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and

(2, - 5 -  \sqrt{5} )

6 0
2 years ago
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kati45 [8]

Answer:

101 = first number

115= second number

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yes they are odd because you can not add two nubers to make 101 or 115

yes. they do add up to 116.

Step-by-step explanation: hope this helped

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The diagonals of a kite separate the quadrilateral into four congruent triangles
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