Answer: 12
Step-by-step explanation: Since the angles are supplements, 3x + x - 20 = 180. Solving this, we find that x = 50, and 3x = 150. Since dodecagons have interior angles of 150 degrees, the answer is 12 sides.
Answer:
The ratio that exist between this three elements are 25 : 19 : 13.
Step-by-step explanation:
Ratio compares one thing to another. Ratios indicate the comparison of the size of a number to another . One trick about ratio is that you can multiply or divide the ratios by same number. For example the ratio of boy to girls can be represented as 3 : 4. If you multiply the ratios by 2 you will get the ratio 6 : 8 and it still represent the same ratios of boys to girls. Ratios can be written as a fraction for example 3/4 for our example.
The cost of the unit is made up of $6.25 , $4.75 and $3.25.
$6.25 $4.75 $3.25 . Let us multiply by 100 to remove the decimals.
625 : 475 : 325 . Now let simplify the ratios by dividing through by 25.
625/25 : 475/25 : 325/25 . The simplest ratios can be written as follows
The ratios are 25 : 19 : 13.
48 + 2x = 180
- 48 - 48
----------------------------
2x = 132
-----------------
2
x = 66
Answer:
24 minutes
Step-by-step explanation:
figure out how much time he spent in total from the times given which is an hour and 42 minutes
subtract 31 minutes to account for science
then add 16 to 31 which gives you 47 then subtract that from the time still left
Then the time left after subtracting 47 and 31 gives you 24 minutes which is how much tyler spent on reading
10+4= 14.....................
