Solve.A vendor has learned that, by pricing hot dogs at $1.00, sales will reach 102 hot dogs per day. Raising the price to
will cause the sales to fall to 66 hot dogs per day. Let y be the number of hot dogs the vendor sells at x dollars each. Write a linear equation that relates the number of hot dogs sold per day to the price x.
A. y = -48x + 150
B. y = 48x + 54
C. y = - 
x + 
D. y = -48x - 150
Answer: A
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Solve the problem.A charged particle of mass m and charge q moving in an electric field E has an acceleration a given by 
where q and E are constants. Find 
.
A. 
= 
B. 
= - 
C. 
= 
D. 
= 
Provide an appropriate response.Here are boxplots for the times (in minutes) for the men and for the women in a race recently run in Chicago. Compare the times for the men and for the women and describe the distribution of the times for each group.
A. The median time for men is about 3 minutes larger than the median time for the women. The two distributions are very similar in shape and spread. For both groups, the 50% of times larger than the median are closer together than the 50% of times smaller than the median. B. Overall, men appear to run about 3 minutes faster than women. The median time for men is around 19 minutes while the median time for women is around 22 minutes. The two distributions are very similar in shape and spread. For both groups, the 50% of times larger than the median are closer together than the 50% of times smaller than the median. C. Overall, men appear to run about 3 minutes faster than women. The median time for men is around 19 minutes while the median time for women is around 22 minutes. The two distributions are very similar in shape and spread. For both groups, the 50% of times smaller than the median are closer together than the 50% of times larger than the median. D. Overall, men appear to run about 3 minutes faster than women. The median time for men is around 19 minutes while the median time for women is around 22 minutes. The times for the women are more consistent than the times for the men - the interquartile range and range are smaller for the women than for the men. For both groups, the 50% of times smaller than the median are closer together than the 50% of times larger than the median.
Simplify the expression.10x2 + x + 4x2 + 2x
A. 14x2 + 3 B. 28x2 C. 14x2 + 3x D. 40x2 + 3x
Solve. Clear decimals first.1.2y + 3.7 = 0.8y + 1.78
A. -4.848 B. -4.81 C. -4.8 D. 0.208