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(General math) a. A balance has the following weights: 100 lb, 50 lb, 10 lb, 5 lb, and 1 lb. The number of 100 lb and 50 lb weights required to weigh an object weighing WEIGHT pounds can be calculated by using the following C++ statements:
Using these statements as a starting point, write a C++
b. Without compiling or running your program, manually check the effect of each statement in the program and determine what’s stored in each variable as each statement is encountered.
c. After verifying that your
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Chapter 3 Solutions
C++ for Engineers and Scientists
- (Using Visual Basic language) Marketing Terms? The markup of an item is the difference between its selling price and its purchase price. Two other marketing terms are percentage markup=makeup/(purchase price) and profit margin= makeup/(selling price) where the quotients are expressed as percentages. Write a program that computes the markup, percentage markup, and profit margin of an item. Note: The output format of your program should be exactly the same as given below One possible outcome: Enter purchase price: 215 Enter selling price: 645 Markup: $430.0 Percentage markup: 200.0% Profit margin: 66.67%arrow_forward(Use Python) The function course_average should calculate and return the average of the three values pass to it. The function main should ask the user to enter three grades and then pass these values to the course_average function. This function should also display a message to the user in the format below. For example, if the user entered 100, 90 and 95 the message would be:The average of 100 , 90 and 95 is 95arrow_forward(Java) The greatest common divisor of two positive whole numbers and n1 and n2 is the largest number g such that g evenly divided into both n1 and n2. Write a complete program that takes two positive whole numbers from the user and displays the common divisor.arrow_forward
- (Geometry: great circle distance) The great circle distance is the distance between two points on the surface of a sphere. Let (x1, y1) and (x2, y2) be the geographi- cal latitude and longitude of two points. The great circle distance between the two points can be computed using the following formula: d = radius * arccos(sin(x1) * sin(x2) + cos(x1) * cos(x2) * cos(y1 - y2)) Write a program that prompts the user to enter the latitude and longitude of two points on the earth in degrees and displays its great circle distance. The average earth radius is 6,378.1 km. The latitude and longitude degrees in the formula are for north and west. Use negative to indicate south and east degrees.arrow_forward( (A + B ) * (C – D) + E / F ) – G Using manual and algorithmic methods, write the following expression to postfix form:arrow_forward(Rounding Numbers) Function floor can be used to round a number to a specific decimal place. The statementy = floor(x * 10 + 0.5) / 10;rounds x to the tenths position (the first position to the right of the decimal point). The statementy = floor(x * 100 + 0.5) / 100;rounds x to the hundredths position (the second position to the right of the decimal point). Write a program that defines fourfunctions to round a number x in various ways:A. roundToInteger(number)B. roundToTenths(number)C. roundToHundredths(number)D. roundToThousandths(number)For each value read, your program should print the original value, the number rounded to the nearest integer, the number rounded to the nearest tenth, the number rounded to the nearest hundredth and the number rounded to the nearest thousandth.arrow_forward
- (PYTHON) A nutritionist who works for a fitness club helps members by evaluating their diets. As part of her evaluation, she asks members for the number of fat grams and carbohydrate grams that they consumed in a day. Then, she calculates the number of calories that result from the fat, using the following formula: calories from fat = fat grams x 3.9 Next, she calculates the number of calories that result from the carbohydrates, using the following formula: calories from carbs = carb grams x 4 The nutritionist asks you to write a program on *PYTHON* that will make these calculations.arrow_forward(c++) int x = 0, y = 10, z = -5; while ( z < x || y > x ) { y + = z; x -- ; z ++; } x = y = z =arrow_forwardintroduction to c++ programming and control statements (selection) all lines of codes should have a comment. cannot use repetition statements or looping statements.arrow_forward
- (C++) Question: Write a function string middle(string str)that returns a string containing the middle character in str if the length of str is odd, or the two middle characters if the length is even. For example, middle("middle") returns "dd". I'm not getting the correct output. What am I doing incorrectly?arrow_forward(Electrical eng.) a. The voltage gain of an amplifier is given by this formula: voltagegain=[275 23 2 +0.5 f 2 ]n f is the frequency in Hz. n is the number of stages in the amplifier. Using this formula, write, compile, and run a C++ program to determine the value of the voltage gain for a four-stage amplifier operating at a frequency of 120 Hz. Your program should produce the following display: At a frequency of xxxxx hertz, the voltage gain is yyyyy Your program should replace xxxxx with the frequency and yyyyy with the voltage gain. b. Manually check the value your program produces. After verifying that your program is working correctly, modify it to determine the voltage gain of a 12-stage amplifier operating at a frequency of 9500 Hz.arrow_forwardC language please. I dont know what im doing wrong can someone help?arrow_forward
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr