![zamakun](/avatars/49708.jpg)
zamakun
04.10.2021 •
Mathematics
Please help 25 points
Solved
Show answers
More tips
- A Animals and plants Money Tree Care Secrets: How to Keep Your Plant Thriving...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- S Style and Beauty How to braid friendship bracelets?...
- H Health and Medicine Mercury Thermometer Danger: What to do when a thermometer breaks?...
- F Food and Cooking Which Calamari Salad is the Most Delicious?...
- S Society and Politics 10 Tips for Boosting Your Self-Esteem...
- F Food and Cooking The Most Delicious and Simple Fish in Batter Recipe...
- H Health and Medicine What is Autism? Understanding the Basics of This Neurodevelopmental Disorder...
- P Philosophy How to Develop Extrasensory Abilities?...
- S Style and Beauty Don t Sacrifice Your Brows: How to Properly Pluck Stubborn Hairs...
Answers on questions: Mathematics
- M Mathematics Using the graph below select all the statements that are true...
- M Mathematics What is the solution to this system?...
- M Mathematics Look at the photo. What is the gross income? What is the medicare taxes?...
- M Mathematics A parabola can be drawn given a focus of ( -6, -3) and a directrix of x = 6. Write the equation of the parabola in any form....
- M Mathematics 6. El crecimiento de la población de dos pueblos durante un periodo de 5 años se muestra en el sistema de ecuaciones abajo al igual que de forma algebraica y en un...
- M Mathematics Sally is baking cupcakes for her birthday party. The table below shows the total number of sprinkles Sally uses for the number of cupcakes she bakes....
- M Mathematics Hello today my exam has finished...
- M Mathematics Given that f = {(1,2),(3,5),(6,8)}, find fo(f·¹) and f-1of. How are they related? ...
- M Mathematics A customer opens a checking account and a saving account at a bank. They will deposit a maximum of $1600, some in the checking account and some in the savings account....
- M Mathematics Need help need help need help need help need help need help...
Ответ:
13a) $3.40
13b) 0.85X
13c) $25.88
Step-by-step explanation:
13a) When there is a 15% discount, we can say that we are only paying 85% of the original price because out of 100%, 15% is taken away. 85% in decimals is 85/100 = 0.85.
$4 x 0.85 is the discounted price, which is $3.40
13b) In 13a, the price was 4. Now, the price is X. Hence we plug in (substitute) X in for 4, giving us X x 0.85, which we can write as 0.85X
13c) 85% of the cake is $22. To find 100% of the price, we can find 1% of the original price and then multiply that by 100, which gives us 100% of the price.
We know 85% of the original price. Therefore, dividng the price by 85 will give us 1% of the price. 1% = $22/85
Finally, to calculate 100%, we multiply by 100.
22/88 x 100 = 440/17 which is 25.882 in decimals, which we round to 2 decimal places (because it is currency) = $25.88