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VashaNatasha [74]
3 years ago
7

URGENT HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
kari74 [83]3 years ago
6 0

Answer: a=−2.3

a+0.3=-2 : a=-2.3

a+0.3=-2 = a=-2.3

Subtract 0.3 from both sides

a+0.3-0.3=-2-0.3

Simplify

a=-2.3

True [87]3 years ago
3 0
<span>a+0.3=−2
a = - 2 - 0.3
a = - 2.3

answer is a. </span><span>a=−2.3 </span>first choice
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Andreas93 [3]

Answer:

x=5

Step-by-step explanation:

The right angle opposite is the hypotenuse

The 30° is the opposite

SohCahToa

Soh = Sin because you got Opposite and Hypotenuse (because you're trying to find the side, you'd do the opposite of dividing, which is times)

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3 0
3 years ago
After reading 80\%80% of her e-mails in her inbox, Danette still has MM unread e-mails.
NARA [144]

Answer:   <em>The correct options are.....</em>

<em>A)   \frac{M}{1-0.8}   and</em>

<em>B)   5M</em>

Step-by-step explanation:

Suppose, the number of e-mails Danette had in her inbox before she started reading was X.

Percentage of read emails is 80%, so the number of read emails = (\frac{80}{100}*X)=0.8X

<u>Thus, the number of unread emails</u> = X-0.8X=X(1-0.8), <u>which is given as</u> M.

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X(1-0.8)=M\\ \\ \Rightarrow X=\frac{M}{1-0.8} (Answer: 1) \\ \\ \Rightarrow X=\frac{M}{0.2}\\ \\ \Rightarrow X=(\frac{1}{0.2})M=5M (Answer: 2)

Thus, the expressions which could represent the number of e-mails Danette had in her inbox before she started reading are:  \frac{M}{1-0.8} or 5M

3 0
4 years ago
Jamie is a salesperson in a shoe store and earns $95 per week, plus 20% of her weekly sales. If Jamie makes $475 in one week, wh
Dovator [93]
475 - 95 = 380 = 20% of sales
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Hope this helps!
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Step-by-step explanation:

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Ivanshal [37]

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