# Math

posted by .

1. You have 3500 in savings for 9 months at a rate of 4.5%. How much will you have at the end of that time?

Ans. my book says: 3,618.13
I come up with: 118,125

2. Scale reads 1 inch = 24 inches for a house window. If window measures 1 3/4 inches, what is the actual length?

Ans. my book says: 3 ft 6 in
I come with 3.5

3. Scale reads 1 inch = 8 ft. If the width of the drawing is 2.25 inches and the length is 4 inches, what is the actual length of the deck's diagonal?

Ans. my book says: 37 ft.
I don't know how they came up with 37 ft.

• Math -

1.
amount = 3500 + 3500(.045)(9/12)
= 3500 + 118.125
= 3618.13

2.
you have 3.5 feet
= 3 feet + 1/2 foot ----- .5 = 1/2
= 3feet , 6 inches

3.
so the actual width of the deck is 18 ft and the length is 32 feet
by Pythagoras
H^2 = 18^2 + 32^2 = 1348
H = √1348 = 36.7 or rounded to 37 feet

• Math -

1.
Can't imagine how you got that answer. Even using 45%, I only get 99169!

However, 4.5% = .045 and that's an annual rate.
You want a monthly rate. Furthermore, you don't say whether that's simple interest or compounded monthly

Simple: 3500(1+.045/12*9) = 3618.13
so, I guess that's it.

2.
the scale indicates that the real dimensions are 24 times as large as the scale drawing.

1 3/4 = 7/4
7/4*24 = 42 inches = 3'6"

You are correct. Since a foot is 12 inches, the .5 foot is 6 inches.
3.5 feet = 3 feet 6 inches!
Keep track of the units, and don't lose track of conversions needed.

3.
This is just like #2.
1" = 8'
2.2" = 2.25(8') = 18'
4" = 4(8') = 32'

so, you have a rectangle that is 18x32.
Recall the Pythagorean Theorem, to see that the diagonal is
√(18^2+32^2) = √(324+1024) = √1348 = 36.7, or 37'

## Similar Questions

1. ### math

Instead of spending his additional earnings each month, Michael chooses to open a savings account offering 3% interest, accrued monthly. Calculate the amount of money Michael will have in his savings account at the end of each of the …
2. ### Math

Envision that you have served as business manager of Media World for over 2 years. You have noticed that for the last 12 months the business has regularly had cash assets of \$20,000 or more at the end of each month. You have found …
3. ### Business Analysis / Investment

Help! I have had several solutions and cannot come up with an answer. Thank you! Envision that you have served as business manager of Media World for over 2 years. You have noticed that for the last 12 months the business has regularly …

I Only Need Question 3. I have completed the rest. I have had several solutions and cannot come up with an answer. Thank you! Envision that you have served as business manager of Media World for over 2 years. You have noticed that …
5. ### Math

Sam gets deposits a total of \$3500 every three months to the bank which earns a 6.5% p/a. After five years how much will he have in his account?
6. ### math

3500 in a savings account for 9 months at a interest of 4.5%. What is the total amount at the end of this time?
7. ### math

Aarthi borrowed \$18,500 at 5%p.a from her father tostart her software business. at the end of 3 months she paid him \$5,000 and \$6,000 at the end of 8 months. how much would she have to pay him at the end of 16 months to clear the balance?
8. ### Math

Samuel earns 0.2% interest each year on his savings account. If he has \$3500 in his savings account for a year, how much interest will he have at the end of the year?
9. ### Equivalent Payments

Belinda borrowed \$20,500 at simple interest rate of 4.30% p.a. from her parents to start a business. At the end of 3 months, she paid them \$7,100 and \$6,900 at the end of 8 months. How much would she have to pay them at the end of …
10. ### Math

Belinda borrowed \$20,500 at simple interest rate of 4.30% p.a. from her parents to start a business. At the end of 3 months, she paid them \$7,100 and \$6,900 at the end of 8 months. How much would she have to pay them at the end of …

More Similar Questions