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Ratling [72]
3 years ago
8

According to the school survey 12% of the students at Rockwood high school speak Spanish there are 36 students at the school who

speak Spanish how many students were surveyed
Mathematics
2 answers:
I am Lyosha [343]3 years ago
7 0


(100%x 36) /12%

= 300

Svet_ta [14]3 years ago
6 0
36 - 12%
x - 100%

x=\frac{100\%\cdot36}{12\%}\\
x=300

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PLEASE HELP<br> Solve for x in the equation 2x^2 - 5x + 1 = 3
Alchen [17]
Answer:

<span>x=<span><span>5±<span>√41</span></span>4</span></span>

Explanation:

<span>2<span>x2</span>−5x+1=3</span>

<span><span>aaaaaaa</span>−3a−3<span>aaa</span></span>Subtract 3 from both sides

<span>2<span>x2</span>−5x−2=0</span>

This equation is not factorable, so use the quadratic formula.

<span>x=<span><span>−b±<span>√<span><span>b2</span>−4ac</span></span></span><span>2a</span></span><span>aaa</span></span> for<span><span>aaa</span>a<span>x2</span>+bx+c=0</span>

<span>a=2,b=−5,c=−2</span>

<span>x=<span><span>−<span>(−5)</span>±<span>√<span><span><span>(−5)</span>2</span>−4<span>(2)</span><span>(−2)</span></span></span></span><span>2⋅2</span></span></span>

<span>x=<span><span><span>5±<span>√41</span></span>4</span></span></span>

hope this helped :)

alisa202

3 0
3 years ago
Read 2 more answers
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