Step-by-step explanation:
please state the amount and the times he's supposed to work rephrase the question please
Margin of error for a population proportion is given by = p^ + or - sqrt(p^(1 - p^)/n); where p^ = 10% = 0.1 and n = 300
margin of error = 0.1 + or - sqrt(0.1(1 - 0.1)/300) = 0.1 + or - sqrt(0.09/300) = 0.1 + or - 0.017 = 0.083 to 0.117 = 8.3% to 11.7% = 25 to 35 workers
Answer:
86 * 0.2 = 17.2
<u><em>17.2 + 86 = 103.2</em></u>
Step-by-step explanation:
A) the multiplier is <u><em>0.2 </em></u>
B) The price is <em><u>103.2</u></em>
Answer:
y > 11/2
Step-by-step explanation:
This is solved the same way a 3-step equation is solved.
<u>Step 1</u>: subtract the smaller variable term from both sides.
4y -2y +3 > 2y -2y +14
2y +3 > 14
<u>Step 2</u>: subtract the constant with the variable term.
2y +3 -3 > 14 -3
2y > 11
<u>Step 3</u>: divide by the coefficient of the variable.
2y/2 > 11/2
y > 11/2
_____
<em>Additional comment</em>
By choosing to subtract the smaller variable term in the first step (regardless of which side of the inequality it is on), we ensure that the remaining variable coefficient is positive. That means we can do step 3 without worrying about changing the direction of the inequality symbol, because we're dividing by a positive number.
<h2>Answer: 250 Hamburgers sold</h2><h2>Step-by-step explanation:</h2><h2><u><em>x = hamburgers
</em></u></h2><h2><u><em>y = cheeseburgers
</em></u></h2><h2><u><em>x+y=434
</em></u></h2><h2><u><em>66 fewer cheeseburgers than hamburgers
</em></u></h2><h2><u><em>
</em></u></h2><h2><u><em> </em></u></h2><h2><u><em>y = x - 66
</em></u></h2><h2><u><em>Substitute y into the first equation
</em></u></h2><h2><u><em>x + (x-66) = 434
</em></u></h2><h2><u><em>2x = 434 + 66
</em></u></h2><h2><u><em>2x = 500
</em></u></h2><h2><u><em>x = 250 hamburgers sold</em></u></h2>
