What is the value of x will make the inequality true. 5x - 10 < 75?
2 answers:
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Answer:
The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.
Step-by-step explanation:
Let "b" be the amount of Brazilian coffee, in pounds, required for the blend and "c" the amount of Colombian coffee required, in pounds.
Since there are two unknown variables a two-equation system is needed to solve the problem, we can set up one equation for weight and another for price as follows:
Solve for "c" by multiplying the first equation by -10 and adding it to the second one:
Now, solve for b by replacing the value obtained into the first equation
The store should use 112.5 pounds of Brazilian coffee and 37.5 pounds of Colombian cofee.
From the table, we can observe that the formula for the total cost of item is
From the data in the table, cost of item 6.00 has the input incorrect because the sum of the cost of its item and tax on the item is,
but the total cost was incorrectly inputed as 7.56.
Hence, the correct option is Option A.