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elena55 [62]
3 years ago
14

-4.66666666667 as a fraction

Mathematics
1 answer:
Natali5045456 [20]3 years ago
7 0
 the answer is 4 -31/36
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Find the following rates. Round your answer to the nearest hundredth. a. ? % of 75 = 5 b. ? % of 28 = 140 c. ? % of 100 = 40 d.
Sati [7]

Answer:

a) 6.67% b) 500% c) 40% d) 7.5%

Step-by-step explanation:

a. ? % of 75 = 5

<em>Let ? be y.</em>

<em>Of means multiply so we will replace it with a multiplication sign.</em>

<em>y% x 75 = 5</em>

<em>y% = 5/75</em>

<em>y% = 1/15 x 100</em>

y = 6.67 %

b) ?% of 28 = 140

<em>Let ? be y.</em>

<em>Of means multiply so we will replace it with a multiplication sign.</em>

<em>y% x 28 = 140</em>

<em>y% = 140/28</em>

<em>y% = 5</em>

<em>y = 5 x 100</em>

y = 500%

c) ?% of 100 = 40

<em>Let ? be y.</em>

<em>Of means multiply so we will replace it with a multiplication sign.</em>

<em>y% x 100 = 40</em>

<em>y% = 40/100</em>

<em>y% = 2/5</em>

<em>y = 2/5 x 100</em>

y = 40%

d) ?% of 200 = 15

<em>Let ? be y.</em>

<em>Of means multiply so we will replace it with a multiplication sign.</em>

<em>y% x 200 = 15</em>

<em>y% = 15/200</em>

<em>y% = 3/40</em>

<em>y = 3/40 x 100</em>

y = 7.5 %

!!

8 0
3 years ago
Factor each expression completely6x^2+x-2
Citrus2011 [14]
6x^2+x-2

first , set the function equal to zero

6x^2+x-2=0

now we can use this expression to factor

x=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}

where a is 6, b is 1 and c -2

so, replacing

\begin{gathered} \frac{-(1)\pm\sqrt[]{1^2-4(6)(-2)}}{2(6)} \\  \\ \frac{-1\pm\sqrt[]{1+48}}{12} \\  \\ \frac{-1\pm\sqrt[]{49}}{12} \\  \\ x=\frac{-1\pm7}{12} \end{gathered}

x has two values

x_1=\frac{-1+7}{12}=\frac{1}{2}x_2=\frac{-1-7}{12}=-\frac{2}{3}

we have the two roots now we chang the sign and make the factor expression

(x-\frac{1}{2})(x+\frac{2}{3})

8 0
1 year ago
Thu wants to play “Guess My Number,"she states. “When I triple my number and add five ,I get twenty-six.what is my number?" What
AleksandrR [38]

The <em>correct answer</em> is:


Her number is 7.


Explanation:


Let x represent her number.


She triples her number; this is represented by 3x.


She then adds 5 to this; this gives us 3x+5.


She gets 26 aas her answer. This gives us the equation:

3x+5 = 26


To solve this, first subtract 5 from each side:


3x+5-5 = 26-5

3x = 21


Divide each side by 3:

3x/3 = 21/3

x = 7

5 0
3 years ago
Read 2 more answers
Def is a right triangle if feel equals 24 and de equals 7 find df
makvit [3.9K]

--  If  FE  is the longest side in the right triangle, then
the length of the missing side is  22.956... (rounded).

--  If  FE  is not the longest side in the right triangle,
then the length of the missing side is  25  (exactly).  


5 0
3 years ago
Tom Johnson worked 32 hours this week for $9.25 per hour. What is Tom’s gross pay for the week?
Dominik [7]

Answer:

296 dollars

Step-by-step explanation:

5 0
3 years ago
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