yeimi12
27.03.2021 •
Mathematics
20 points
Find the area of the regular hexagon. Round to the nearest hundredth.
A)
27.71 in 2
B)
83.14 in?
C)
166.26 in?
D)
332.55 in 2
Solved
Show answers
More tips
- O Other What happens if you get scared half to death twice?...
- F Family and Home What s That Noise When a Kettle Boils? The Science of Water and Steam...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- W Work and Career How much does an honest traffic police officer earn in a day?...
- F Food and Cooking Red Caviar: How to Choose the Best?...
- S Style and Beauty How to Get Rid of a Bruise: Tips and Tricks...
- H Health and Medicine Is Massage Necessary? Facts and Opinions...
- L Leisure and Entertainment Should You Buy a Ceramic Knife?...
- C Computers and Internet Best Antivirus: How to Choose Protection for Your Computer?...
- F Food and Cooking When is Easter in 2011?...
Answers on questions: Mathematics
- M Mathematics Show your work. the cajun heartland state fair charges $1.25 per ticket for the rides. johnny bought 25 tickets for the rides and spent a total of $43.75 at the fair. johnny...
- M Mathematics Susan makes a rectangular rug that has an area of 300 square inches and a width of 15 inches. what is the length of the rug?...
- E English Borrowing money to pursue an advanced degree makes sense if a. you can earn a scholarship to pay for your educational costs b. your future earnings potential outweighs the...
- E English I don t know if i m correct or not if i m not can you let me know thank you...
Ответ:
b or a
Step-by-step explanation:
Ответ:
Let f represent the volume of the 40% acid solution.
Let t represent that of the 30% solution, and s that of the 60% solution.
Then s + t = 15 units. Then, (15 units) - s = t
0.30t + 0.60s=(15 units)(0.40)
Mult. this by 100 to elim. fractions: 30t + 60s = 600
Subst (15 units - s) for t, 30 (15-s) + 60s = 600
4500 - 30s + 60s = 600
30s = 150
s = 5 units
Then t = (15 units - 5 units) = 10 units.
Use 10 units of the 30% solution and 5 units of the 60% solution.
Check: Does (10)(.3) + (5)(.6) = (15)(.4)? Yes