December 2020

In an elementary school, a mixture of equal amounts of nuts and dried fruit is provided during lunch. Suppose that the number of calories in each pound of nuts is 0.70 times the number of calories in each pound of dried fruit. Write a program that prompts the user to input the number of students […]

A contractor orders, say, 30 cubic yards of premixed concrete to construct a patio that is to be, say, four inches thick. The length of the patio is to be, say, twice the width. Write a program that prompts the user to specify the amount of premixed concrete (in cubic yards) ordered, the thickness of

Suppose x, y, and z are int variables and ch is a char variable. Consider the following input: (2) 78 86 18 #42 & What value (if any) is assigned to x, y, z, and ch after each of the following statements executes? (Use the same input for each statement.) a. cin >> x >>

Suppose that height is a double variable, ch is a char variable, and name is a string variable. What are the values of height and name after the following input statements execute: (8) cin >> height; cin.get(ch); getline(cin, name);  if the input is: a. 5.4 Christy Miller b. 5.4  Christy Miller

The following program is supposed to read the length and width of a rectangle from a file named input.txt and write the area and perimeter of the numbers to a file named output.txt. However, it fails to do so. Rewrite the program so that it accomplishes what it is intended to do. (Also, include statements

Suppose that infile is an ifstream variable and it is associated with the file that contains the following data: 27306 savings 7503.35. Write the C11 statement(s) that reads and stores the first input in the int variable acctNumber, the second input in the string variable accountType, and the third input in the double variable balance.

Suppose that you have the following statements: (10) ofstream outfile; int numOfJuiceBottlesSold = 35; double costOfaJuiceBottle = 0.75; double revenue; Use this information and write C11 statements to do the following: a. Open the file sales.dat using the variable outfile. b. Write the statement to format the output in the outfile to two decimal places

Consider the following incomplete C11 program: #include int main()   … a. Write a statement that includes the header files fstream, string, and iomanip in this program. b. Write statements that declare inFile to be an ifstream variable and outFile to be an ofstream variable. c. The program will read data from the file inData.txt

Write a program that accepts as input the mass, in grams, and density, in grams per cubic centimeters, and outputs the volume of the object using the formula: volume 5 mass / density. Format your output to two decimal places. Dairy Farm decided to ship milk in containers in the form of cubes rather than

Interest on a credit card’s unpaid balance is calculated using the average daily balance. Suppose that netBalance is the balance shown in the bill, payment is the payment made, d1 is the number of days in the billing cycle, and d2 is the number of days payment is made before billing cycle. Then, the average