Solve 8(3x-4)=4x-2. Help
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The average time of the 20 athletes who did not qualify for the final is 11.2 seconds .
<u>Step-by-step explanation:</u>
Here we have , Twenty-eight athletes participate in a 100-meter race. The time of each athlete is measured during the qualification round. The average time is 11 seconds. The 8 athletes with the fastest time qualified for the final. The average time of these 8 athletes is 10.5 seconds. Let's have equations for this:
where
are athletes
⇒
⇒
⇒
⇒ , where m is average time of the 20 athletes who did not qualify for the final.
⇒
⇒
⇒
∴ The average time of the 20 athletes who did not qualify for the final is 11.2 seconds .
There are 7.5 ounces in each serving
<em><u>Solution:</u></em>
Given that, Sara making punch for her party her punch bowl holds 600 ounces for 80 servings of punch
<em><u>To find: Ounces of punch in each serving</u></em>
From given,
Number of servings = 80
Ounces in bowl = 600 ounces
Then, Ounces of punch in each serving is found by dividing the ounces in bowl by number of servings
<em><u>The formula used is:</u></em>
<em><u>Substituting the values we get,</u></em>
Thus there are 7.5 ounces in each serving
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<h3>x²-4=x+2</h3><h3>=>x²-x-4-2=0</h3><h3>=>x²-x-6=0</h3><h3>=>x²-3x+2x-6=0</h3><h3>=>x(x-3)+2(x-3)=0</h3><h3>=>(x-3)(x+2)=0</h3><h3>=>x=3 and x= -2</h3><h2>iz the correct answer!</h2>✌️✌️
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