The principal at Gotham Elementary bought each teacher the three items shown above. If the school has 22 teachers, how much did the principal spend on these items?
Items:
$3.99
$4.50
$6.00
The total cost of the three items is $3.99 + $4.50 + $6.00 = $<<3.99+4.50+6.00=14.49>>14.49.
The principal bought these items for 22 teachers, so the total amount spent on these items is $14.49 x 22 = $<<14.49*22=318.78>>318.78. Answer: \boxed{318.78}.
List the percentages of the following found in your DNA molecule.
a. % Adenine: 30
b. % Guanine: 20
c. % Thymine: 30
d. % Cytosine: 20
e. # Hydrogen Bonds: ______
If a strand of DNA has 20% thymine, what percent of guanine will it contain?
If a strand of DNA has 20% thymine, then the percentage of guanine it contains will also be 20%. This is because in DNA, adenine always pairs with thymine and guanine always pairs with cytosine. Therefore, the percentages of adenine and thymine are always equal, as are the percentages of guanine and cytosine. So, if the percentage of thymine is 20%, the percentage of guanine will also be 20%.
To find out how much the principal spent on these items, we need to multiply the cost of each item by the number of teachers. There are three items shown, so we'll need to calculate the total cost for each item separately.
Let's start with the first item, which costs $3.99. To find the total cost of this item, we multiply the cost by the number of teachers:
$3.99 x 22 = $87.78
Next, let's move to the second item, which costs $4.50. Again, we multiply the cost by the number of teachers:
$4.50 x 22 = $99.00
Finally, let's calculate the total cost for the third item, which is priced at $6.00:
$6.00 x 22 = $132.00
Now, we need to add up the total costs for each item to find the overall expense. Adding the totals together:
$87.78 + $99.00 + $132.00 = $318.78
Therefore, the principal spent a total of $318.78 on these items for the teachers at Gotham Elementary.