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BartSMP [9]
3 years ago
13

A textbook store sold a combined total of 288 history and psychology textbooks in a week. The number of history textbooks sold w

as two times the number of psychology textbooks sold. How many textbooks of each type were sold
Mathematics
1 answer:
Lilit [14]3 years ago
5 0

Answer:

x=96 and y=192

Step-by-step explanation:

x+y=288 and 2x=y

plug y in and solve for x

x+2x=288

3x=288

x=96

plug x back in and solve for y

2(96)=y

y=192

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Answer:

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3 years ago
function in c that takes three decimal numbers as inputs and finds the sum of those inputs and returns the sum
kozerog [31]

The function that takes three decimal numbers as inputs and finds the sum of those inputs and returns the sum has been given below

What is programming?

Program is the set of instructions given to the computer so that the computer can execute those instructions. The act of writing program is called programming.

The program has been shown below

#include<stdio.h>

using namespace std;

int main()

{

double n1, n2, n3;

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To learn more about programming refer to the link-

brainly.com/question/23275071

#SPJ4

7 0
1 year ago
Calculate the value of <br> x<br> .
Anika [276]

Answer:

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Therefore, 2x = 360 - 310, or 2x = 50, or x = 25 degrees

5 0
3 years ago
Write the equation of the line that has a slope of -5 and a y intercept of 7
Elza [17]

Answer:

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Step-by-step explanation:

slope intercept form of the equation is

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Step-by-step explanation:

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5 0
3 years ago
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