side of the equation to get 3 = 2 log , then 3 = 2(–6), and finally 3 = –12.Eliminate (D). The correct answer is (B).
48 Set up a proportion: = . Cross-multiply and get x = 1.2 × 40 = 48.
558 During the summer the ice cream vendor sells an average of 2(50) – 7 = 93 popsicles per
day. Over 6 summer days, 93 × 6 = 558 popsicles are sold. The correct answer is 558.
or 3.5
First, get rid of the decimals in the first equation by multiplying the first equation through by
10 to get 13g + 17h = 50. In the second equation, move all the variables to the left of the
equal sign to get –13g + 3h = 20. Whenever there are two equations with the same two
variables, they can be solved simultaneously by adding or subtracting them. The key is to
get one variable to disappear. Stack the equations on top of each other and add them.Therefore, h = . Because this number is too large to grid in, either reduce the fraction to , or convert the fraction to the decimal 3.5.- 16 To find the percent of registered Democrats planning to vote for Candidate A, divide the
number of Democrats planning to vote for Candidate A by the total number of registeredDemocrats: = 0.16 = 16%, which makes 16 the correct answer.- 30 Start by drawing the picture, as this question doesn’t provide one. To do so, change each of
the equations into the slope-intercept form of an equation y = mx + b, where m is the slopeand b is the y-intercept. The second equation becomes 3y ≥ 2x − 12, or y ≥ x − 4. Thethird equation becomes 5y ≤ –2x + 20, or y ≤ – x + 4. The ≥ sign in the second equationmeans that everything above the line should be shaded, and the ≤ sign in the third equation