A house has 1,500 square feet on the first floor and 500 square feet on the second floor. What percent of the square footage of the house is on the first floor?__________ %
Fill in the blank(s) with the appropriate word(s).
75
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Find the standard quota asked for. Round your answer to two decimals.A small city has 50 police officers to be apportioned among 8 precincts based on the population of each precinct. The populations are given in the following table. 
Find the standard quota for the Third Precinct.
A. 5.1 B. 7.51 C. 6.07 D. 5.73
Write the phrase as a mathematical expression. Use x as the variable.Some number minus 140
A. 140 B. x + 140 C. 140x D. x - 140
Solve the problem.A hospital dietitian wants to insure that a certain meal consisting of rice, broccoli, and fish contains exactly 26,800 units of vitamin A, 840 units of vitamin E, and 11,160 units of vitamin C. One ounce of rice contains 400 units of vitamin A, 20 units of vitamin E, and 180 units of vitamin C. One ounce of broccoli contains 800 units of vitamin A, 60 units of vitamin E, and 540 units of vitamin C. And one ounce of fish contains 2,400 units of vitamin A, 40 units of vitamin E, and 810 units of vitamin C. How many ounces of each food should this meal include? Set up a system of linear equations and solve using Gauss-Jordan elimination.
What will be an ideal response?
Simplify.
A. 
B. 
C. 
D. 