Scientists want to set up and test animals in the area for West Nile. The costs to test are $2,200 for setup plus $1.50 to administer each test.
Write an expression that gives the total cost to test x animals.
Hint: An expression is a combination of known and unknown values.
2200 + 1.50x
Thank you so much. How can We can find the average cost per animal by dividing total costs by number of animals.
Write an expression that helps solve the average cost per animal.
2200 + 1.50/x <<<would this be the answer
You actually need parentheses around '2200 + 1.50x' when you are dividing to find the average. So (2200 + 1.5x)/x would be my answer. (I removed the 0 after 1.5 also, as 1.5 is the same number as 1.50.)
-2xa(-4xb - 2x3 + 5x)
To write an expression that gives the total cost to test x animals, we need to consider both the setup cost and the cost to administer each test.
The setup cost is a fixed amount of $2,200, which is the same regardless of the number of animals being tested.
The cost to administer each test is $1.50 per animal. So, for x animals, the cost to administer tests would be $1.50 multiplied by x.
To get the total cost, we add the setup cost and the cost to administer the tests:
Expression for total cost = Setup cost + (Cost per test * Number of animals)
Therefore, the expression that gives the total cost to test x animals is:
Total cost = $2,200 + ($1.50 * x)