# How many pounds of a 10% copper alloy must be mixed with 500 lb of a 30% copper alloy to make a 22.5% copper alloy?____lbs Translate into a variable expression. Then simplify.a number n decreased by the difference between fifteen and the numberVariable expression ___Simplified expression ____  Which numbers are solutions of the inequality 4x − 2 > 6? (Select all that apply.)-5246 Find the cost per ounce of a sunscreen made from 140 oz of lotion that cost \$3.44 per ounce and 90 oz of lotion that cost \$11.03 per ounce. \$ ___per ounceA coffee merchant combines coffee that costs \$6 per pound with coffee that costs \$4.50 per pound. How many pounds of each should be used to make 25 lb of a blend costing \$5.43 per pound? \$6 per lb coffee    lb\$4.50 per lb coffee    lb A coffee merchant combines coffee costing \$3.50 per pound with coffee costing \$3.00 per pound. How many pounds of each should be used to make 30 lb of a blend costing \$3.20 per pound?\$3.50/lb coffeelb\$3.00/lb coffeelb Joseph Abruzzio decides to divide a gift of \$6000 into two different accounts. He deposits \$2000 in an IRA account that earns an annual simple interest rate of 5.5%. The remaining money is placed in an account that earns an annual simple interest rate of 8.25%. How much interest will Joseph earn in one year from the two accounts?\$ Two investments earn an annual income of \$946. One investment earns an annual simple interest rate of 7.9%, and the other investment earns an annual simple interest rate of 10.5%. The total amount invested is \$10,000. How much is invested in each account?7.9% investment\$10.5% investment\$ Suppose a and b are positive numbers such that a < b. State whether an absolute value equation in the given form has no solution, two negative solutions, two positive solutions, or one positive and one negative solution.|x − b| = a (choose one)no solutiontwo negative solutions     two positive solutionsone positive and one negative solution

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How many pounds of a 10% copper alloy must be mixed with 500 lb of a 30% copper alloy to make a 22.5% copper alloy?

____lbs

Translate into a variable expression. Then simplify.

a number n decreased by the difference between fifteen and the number
Variable expression ___
Simplified expression ____

Which numbers are solutions of the inequality 4x − 2 > 6? (Select all that apply.)
-5
2
4
6

Find the cost per ounce of a sunscreen made from 140 oz of lotion that cost \$3.44 per ounce and 90 oz of lotion that cost \$11.03 per ounce.
\$ ___per ounce
A coffee merchant combines coffee that costs \$6 per pound with coffee that costs \$4.50 per pound. How many pounds of each should be used to make 25 lb of a blend costing \$5.43 per pound?
 \$6 per lb coffee lb \$4.50 per lb coffee lb

A coffee merchant combines coffee costing \$3.50 per pound with coffee costing \$3.00 per pound. How many pounds of each should be used to make 30 lb of a blend costing \$3.20 per pound?

 \$3.50/lb coffee lb \$3.00/lb coffee lb

Joseph Abruzzio decides to divide a gift of \$6000 into two different accounts. He deposits \$2000 in an IRA account that earns an annual simple interest rate of 5.5%. The remaining money is placed in an account that earns an annual simple interest rate of 8.25%. How much interest will Joseph earn in one year from the two accounts?
\$

Two investments earn an annual income of \$946. One investment earns an annual simple interest rate of 7.9%, and the other investment earns an annual simple interest rate of 10.5%. The total amount invested is \$10,000. How much is invested in each account?

 7.9% investment \$ 10.5% investment \$

Suppose a and b are positive numbers such that a < b. State whether an absolute value equation in the given form has no solution, two negative solutions, two positive solutions, or one positive and one negative solution.

|x − b| = a (choose one)
no solution
two negative solutions
two positive solutions
one positive and one negative solution
check_circle

Step 1

As per norms, the first three questions are answered.

Step 2

(1) 300 lb are required

Step 3

Variable expression : n-(15-n); si...

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