Short Answer: B Remark The area of any triangle is A = 1/2 b * h b = 7 3/4 h = 4 2/3
Step one Convert all fractions to improper fractions.
7 3/4 = (28 + 3) / 4 = 31/ 4
4 2/3 = (12 + 2) / 3 = 14/3 Now multiply
Step Two Multiply Area = 1/2 * 31/4 * 14/3 Multiply the numerators together and then the denominators. Area = (1 * 31 * 14) / (2 * 4 * 3) = 434 /24
Step 3 Convert this to a whole number + a fraction
Area = 18 + 0.08333333 You already have your answer. It is B because only B gives an answer of 18. But you can get the rest of
Let x = 0.083333333 100 x = 8.3333333333 <u>x = 0.0833333333 </u> Subtract 99 x = 8.25 Divide by 3 on both sides. 33 x = 2.75 Divide by 11 3x = 0.25 x = 0.25/3 Multiply top and bottom by 4 x = 1 / 12
P(x)=R(x)-C(x) Given that: R(x)=2.5x and C(x)=0.5x+3 Then, P(x)=2.5x-(0.5x+3) P(x)=2x-3 thus for profit of $99, the number of units will be found as follows: 99=2x-3 solving for x we get: 102=2x x=56 units
