54. A researcher needs 40 g of a 55% reagent but has stock that comes in only 40% and 70% strengths. How much of each stock solution should she use for her 40 g? hiaida oh ofe 050L herbieide solution should be 100 I 700

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Exponential And Logarithmic Functions
Section5.4: Exponential And Logarithmic Equations
Problem 83E: The number N of beavers in a given area after x years can be approximated by N=5.5100.23x,0x10. Use...
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How do you do 54
Simplify. [1.3]
46. (5x – 8) – (x - 4)
47. 2x(5x-&x)
Solve.
48. 5x – 8 = x [1.4]
49. 5x 8<2 [1.6]
50. |5x – 8| = x [1.8]
51. |5x – 8 <2 [1.9]
Solve 3x - 2y 12 for the indicated variable. [1.4]
52. for x
53. for y
Write an equation and solve. [1.5]
54. A researcher needs 40 g of a 55% reagent but has stock that comes in only 40% and 70% strengths.
How much of each stock solution should she use for her 40 g?
55. A farmer has 190 L of a 70% herbicide solution. How much of a 95% herbicide solution should he
add in order to get an 80% herbicide solution?
MАTH
TIN HISTORY
62
Transcribed Image Text:Simplify. [1.3] 46. (5x – 8) – (x - 4) 47. 2x(5x-&x) Solve. 48. 5x – 8 = x [1.4] 49. 5x 8<2 [1.6] 50. |5x – 8| = x [1.8] 51. |5x – 8 <2 [1.9] Solve 3x - 2y 12 for the indicated variable. [1.4] 52. for x 53. for y Write an equation and solve. [1.5] 54. A researcher needs 40 g of a 55% reagent but has stock that comes in only 40% and 70% strengths. How much of each stock solution should she use for her 40 g? 55. A farmer has 190 L of a 70% herbicide solution. How much of a 95% herbicide solution should he add in order to get an 80% herbicide solution? MАTH TIN HISTORY 62
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