yasminothman02
20.09.2020 •
Mathematics
Tina is saving to buy a notebook computer. She has two options. The first option is to put $300 away
initially and save $10 every month. The second option is to put $100 away initially and save $30 every
month. After how many months would Tina save the same amount using either option? How much
would she save with either option?
After
months, Tina will save $
with either option.
Solved
Show answers
More tips
- P Photography and Videography How to Choose the Perfect Photo Paper for Your Images?...
- H Health and Medicine What vaccines do children need?...
- H Health and Medicine Reasons for the Appearance of Warts: Everything You Need to Know...
- A Art and Culture How to Learn Screaming: Step-by-Step Guide for Beginners...
- H Health and Medicine Contraceptive Pills After 35: The Importance Of Choosing The Right Medication...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics Examine the work shown. explain the error and find the correct result. 2(4 – 16) – (–30) 2(–12) – (–30) 24 – (–30) 54...
- M Mathematics My father eats 125 g of chocolate a day. How many grams will he eat in two weeks?...
- B Business How does a subscription business model function? A. By asking the government to tax the customers B. By relying on a series of one-time sales C. By relying on contracts...
- H Health The term used to describe the amount of blood in the ventricle available to be pumped out of the heart during the next contraction is...
- B Biology The process of translating information into neural language that will be retained in memory is called...
- C Computers and Technology Consider java and explore its scope rules. one aspect of the scope rules of any language is when data or methods can have the same name. give examples in java to...
Ответ:
Step-by-step explanation:
The number of months is our unknown, which we will call x. y is the amount she saves. Representing the fact that she puts $10 away per month is 10x. If she puts $300 down initially and then adds 10 per month to that, the first equation is
y = 10x + 300
The same goes for the second option. Putting $30 away every month is represented as 30x, and if she is starting with 100 and adding 30 a month to it, the second equation is
y = 30x + 100
We are being asked to find the number of months where the amount Tina saves is equal. Since y is the amount Tina has saved and we want to know when these amounts are equal, we will set the equations equal to each other and solve for x, the number of months.
10x + 300 = 30x + 100 and
200 = 20x so
x = 10. After 10 months, Tina will have saved the same amount of money regardless of which option she has chosen. This is only true for 10 months though. After that, one will show more of a savings than the other.
Ответ:
-2 yards
Step-by-step explanation:
8-4=4
4-3=1
1-3= -2