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3 years ago

There are 42 males and 67 females participating in a marathon. What percent of the participants are male?

2 answers:

8 0

38% of participants are males.
Add 42 and 67 to get 109. Then do 42/109 to get an answer of .385, which can translate to 38%.

ch4aika [34]3 years ago

5 0

Answer:

45,78%

Step-by-step explanation:

42 + 67 = 109

109 x 42 / 100 = 45,78 %

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Whoops i forgot to read the lesson :P 30 points

andriy [413]

Step-by-step explanation:

I'll do 2.

Alright,Alex let say we have factored a quadratic into two binomial, for example

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If we set both of those equal to zero

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This means that

$if \: ab = 0 \: then \: a = 0 \: and \: b = 0$

This means we set each binomal equal to zero to find it root.

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$5x = - 3$

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$6x = - 4$

$x = - \frac{2}{3}$

So our roots are negative 3/5 and negative 2/3 using zero product property

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2 years ago

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pentagon [3]

Answer:

All real numbers

Step-by-step explanation:

Solve a system of equations by elimination

With the equation given, you can solve for y to get: y = $\frac{1}{5}$ x - $\frac{6}{5}$

Then, substitute this value in on the equation.

x - 5( $\frac{1}{5}$ x - $\frac{6}{5}$ ) = 6

x - x + 6 = 6

6 = 6

The solution is all real numbers

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