A 25% salt solution is mixed with a 55% salt solution. Which of the following are not possible for the percent concentration of the resulting solution? (Select all that apply.) 60% 5% 55% 43% 25% A coffee merchant combines coffee that costs $7 per pound with coffee that costs $4.30 per pound. How many pounds of each should be used to make 27 lb of a blend costing $6.05 per pound? $7 per lb coffee lb $4.30 per lb coffee lb Find the cost per ounce of a sunscreen made from 120 oz of lotion that cost $3.45 per ounce and 90 oz of lotion that cost $11.15 per ounce. $ per ounce Two planes are 1455 mi apart and are traveling toward each other. One plane is traveling 110 mph faster than the other plane. The planes pass each other in 1.5 h. Find the speed of each plane. slower plane mph faster plane mph A butcher has some hamburger that is 19% fat and some that is 11% fat. How many pounds of each should be mixed to make 80 lb of hamburger that is 13% fat? 19% fat lb 11% fat lb An average score of 90 or above in a history class receives an A grade. You have scores of 86, 95, and 88 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. (Let N stand for your score on the fourth exam.) 79 ≤ N ≤ 100 90 ≤ N ≤ 100 91 < N ≤ 100 91 ≤ N ≤ 100 90 < N ≤ 100

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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A 25% salt solution is mixed with a 55% salt solution. Which of the following are not possible for the percent concentration of the resulting solution? (Select all that apply.)

60%

55%

43%

25%

A coffee merchant combines coffee that costs $7 per pound with coffee that costs $4.30 per pound. How many pounds of each should be used to make 27 lb of a blend costing $6.05 per pound?

$7 per lb coffee	lb
$4.30 per lb coffee	lb

Find the cost per ounce of a sunscreen made from 120 oz of lotion that cost $3.45 per ounce and 90 oz of lotion that cost $11.15 per ounce.
$ per ounce

Two planes are 1455 mi apart and are traveling toward each other. One plane is traveling 110 mph faster than the other plane. The planes pass each other in 1.5 h. Find the speed of each plane.

slower plane	mph
faster plane	mph

A butcher has some hamburger that is 19% fat and some that is 11% fat. How many pounds of each should be mixed to make 80 lb of hamburger that is 13% fat?

19% fat	lb
11% fat	lb

An average score of 90 or above in a history class receives an A grade. You have scores of 86, 95, and 88 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. (Let N stand for your score on the fourth exam.)

79 ≤ N ≤ 100

90 ≤ N ≤ 100

91 < N ≤ 100

91 ≤ N ≤ 100

90 < N ≤ 100

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