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3 years ago

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If marisol got 68 answers correct and her total is an 85, what was her test score?

2 answers:

denis23 [38]3 years ago

4 0

Divide 68 by 85 = is .8 which is 80%

aleksandr82 [10.1K]3 years ago

4 0

So 68 is their score out of 85
68/85
And her percent should be out of 100%
So you would use cross multiplication
68/85 = x/100 ; let x represent her test score
68/85 = x/100 -> 68(100)= 85x
6800= 85x
Divide by 85 on both sides
6800/85 = 85x/85
80=x so she score was 80%

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<em>The equation of the circle (x +1) )² +(y-(2))² = (2(√5))²</em>

<em> or </em>

<em>The equation of the circle x² + 2 x + y² - 4 y = 15</em>

<u>Step-by-step explanation:</u>

Given points end Points are p(-3,-2) and q( 1,6)

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P Q = $\sqrt{x_{2} - x_{1})^{2} + ((y_{2} -y_{1})^{2} }$

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<em> </em> $(\frac{x_{1} + x_{2} }{2} , \frac{y_{1} +y_{2} }{2} ) = (\frac{-3+1}{2} ,\frac{-2 +6}{2} )$ <em></em>

<em> = (-1 ,2)</em>

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<em> (h,k) = (-1 , 2)</em>

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<u><em>Final answer</em></u><em>:-</em>

<em>The equation of the circle (x +1) )² +(y-(2))² = (2(√5))²</em>

<em> or </em>

<em>The equation of the circle x² + 2 x + y² - 4 y = 15</em>

<em> </em>

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3 years ago