book Maths Puzzle Numerical Ability

Guatemalan coffee sells for $5.00 a pound and Mexican coffee sells for $6.40 a pound. A blend contains 10 fewer pounds of Mexican than Guatemalan and sells for $5.63 a pound. How

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book Other Question

Write an equation in slope-intecept form of the line satisfying the given conditions.
perpendicular to the graph of 4x-y=12, please show how you got this answer also. Thank You! The table gives the outside temperature in degrees Fahrenheit on a winter day in Death Valley, California.

Time (A.M.) 7:00 8:00 9:00 10:00 11:00
Temp. 78 82