solve the problem by writing and solving a linear equation.

solve the problem by writing and solving a linear equation.

A car engine running at a temperature of 80◦C is then switched off and begins to cool according to Newton’s Law of Cooling. The ambient temperature is 15◦C, and after exactly 18 minutes...

i need help solving this problem because I have trouble understanding theses kind of word problems

you have to find the number of patents for each company

how do I write the problem?

After 7 hours of burning, a candle has a height of 24.9 centimeters. After 18 hours of burning, its height is 21.6 centimeters.

The sum of a number and negative seven is 12. Find the number

a basketball team played 62 games. They won 34 more than they lost. How many games did they win?

in 1875 the number of high school dropouts in a country was 5217 thousand. by 2003, this number has decreased to 3118 thousand. find and interpret the average rate of change per year in the number...

You have a total of $10,000 to invest in two simple interest accounts. On one account the annual simple interest rate is 3.5%. On the second account the annual simple interest rate is 7.5%. If you...

Need help writing this into an equation to solve.

A machine to manufacture fasteners has a setup cost of $1,500 and a unit cost of $0.005 for each fastener manufactured. A newer machine has a setup cost of $1,850 but a unit cost of...

there are two classes.Class A has 18 more students than class B.If 1/8 of class B, both classes would have the same number of students.

A car travels 250km in same time that a truck travels 225km. If the speed of the car is 8km per hour faster than the speed the truck, find both speeds.

A company produces three color television sets: models X,Y,Z. Each model X set requires 2 hours of electronics work, 2 hour of assembly time an 1 hour of finishing time. Each model requires 1,3, and...

Solve the following using Linear Programming methods. All necessary working must be shown and presented clearly, in a well organised fashion that is easily followed. Working must be fully detailed...

Find three consecutive integers such that the sum of the first and twice the second is 92 minus three times the third

a) sketch a linear graph to model this data. label axes and scales clearly. b) find a linear model to express the relationship of call minutes t to bill total C (in dollars). Show all...

having trouble solving

Logan has 52 coins, all dimes and nickels, worth $3.55. How many dimes and nickels does he have?