A chemist mixes a silver alloy AG1 costing $13 per ounce with another silver alloy AG2 costing $17 per ounce to make 10 oz of a new alloy. If the chemist wants the new alloy to cost between $15 and...
A chemist mixes a silver alloy AG1 costing $13 per ounce with another silver alloy AG2 costing $17 per ounce to make 10 oz of a new alloy. If the chemist wants the new alloy to cost between $15 and...
A tea merchant mixes some black tea costing $42 per pound with 3 lb of Earl Grey tea costing $50 per pound. How many pounds of the black tea should be used if the merchant wants a blend that costs...
George Stoia earns $2,000 per month plus 5% commission on the amount of sales. George's goal is to earn a minimum of $3,400 per month. What amount of sales will enable George to earn $3,400 or more...
1.Solve the linear equation/inequality. for inequality leave the answer in interval notation. i. 11-3x/4 greater then equal to 5 ii 5-x+2/3=7 2. 3x+1/4+x+2/3>5-x/2 3...
12x>5
You are saving to buy your first new car priced at $19,000! You have already saved $2,500 and you want to have enough money in three years to purchase your car. How much money will you have...
(19)93>(13)99
A contractor estimated that her expenses for a construction project would be between $700,000 and $750,000. She has already spent $496,000. How much more can she spend and remain within her estimate...
a. {x|x greater than or equal to -5} intersect {x|x less than or equal to 5} b. {x|x > 2} union {x|x > 10} c. {x|x < 3 or x > 6} d. The set of real numbers greater than or...
We are working on inequalities and it asks for the inequality to solve the above word problem. Any help is appreciated.
brand x has 2 carbs 2 fat and 2 protein. brand y has 1 carb 9 fat and 3 protein. the minimum of carbs are 12 min. of 36 fats and a min. of 24 protein. how many bags of each should be mixed to minimize...
A poll found that a particular group of people read an average of 15.3 books per year. The pollsters are 99% confident that the result from this poll is off by fewer than 1.62 books from the actual...
A dieter is allowed to eat up to a pound of protein each day in the form of chicken and fish. One ounce of fish is equal to 100 calories, and one ounce of chicken is equal to 250 calories, and the...
12 Solve the following system of equations. 2x - 3y + z = -1 2x - 2y - 2z = -8 x + 5y - 3z = 2 Choose one answer. A. (1, 1, 0) B. (-1, 2,...
Determine if the inequality 3x-4x is greater than or equal to 6-x+8 is never, sometimes, or always true. If it is sometimes true, identify the solution set.
Need the standard form of the line.
5m+4 ≤ -11 Graph inequalities using this notation: < ----------(========= > ...
if r>t and r<1 and rt=1 then which one of the following is true? (a)r>0 and t<-1 (b)r>-1 and t<-1 (c)r<-1 and t<-1 (d)r<1 and t>1 (e)r>1...
if x and y are the integers such that 0<x+y<10 then which of the following is true (a) xy<2 (b)x>3 (c)x>4 (d)x+y=5 (e)x-y<8
3 x + 2 y < 6 2 x - y > 2