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Yakvenalex [24]
2 years ago
15

Spencer bought 3 books of stamps and mailed a package. it cost $4.50 to mail the package. define a variable and write an express

ion to represent the total amount he spent at the post office.
Mathematics
1 answer:
vladimir2022 [97]2 years ago
3 0
X = The cost of each book of stamps

There for your expression would be:
3x + 4.50

3x is 3 book of stamps times x cost of each book.
Your 4.50 is your one time fee to mail the package.

Hope this helps! (:
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romanna [79]
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7 0
2 years ago
Enos took out a 25-year loan for $135,000 at an APR of 6.0%, compounded monthly, and he is making monthly payments of $869.81. W
Alborosie
Present value = 135000
Monthly interest, i = 0.06/12 = 0.005
Monthly payment, A= 869.81

Future value of loan after 16 years
F=P(1+i)^n      [compound interest formula]
=135000(1+.005)^{16*12}
=351736.652

Future value of payments after 16 years
\frac{A((1+i)^n-1)}{i}
=\frac{869.81((1+0.005)^{16*12}-1)}{0.005}
=279287.456

Balance = future value of loan - future value of payments
=351736.652-279288.456
= $ 72448.20

Note: the exact monthly payment for a 25-year mortgage is
A=\frac{P(i*(1+i)^n)}{(1+i)^n-1}
=\frac{135000(0.005*(1+0.005)^{25*12}}{(1+0.005)^{25*12}-1}
=869.806892

Repeating the previous calculation with this "exact" monthly payment gives
Balance = 72448.197, very close to one of the choices.

So we conclude that the exact value obtained above differs from the answer choices is due to the precision (or lack of it) of the provided data.

The closest choice is therefore <span>$72,449.19</span>
6 0
2 years ago
Read 2 more answers
6=m-7/8<br> please help me pleaaaaaaaase
AlladinOne [14]

Answer:

m = 55/8 = 6.875

Step-by-step explanation:

Step by step solution :

Step  1  :

           7

Simplify   —

           8

Equation at the end of step  1  :

            7

 6 -  (m -  —)  = 0  

            8

Step  2  :

Rewriting the whole as an Equivalent Fraction :

2.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  8  as the denominator :

         m     m • 8

    m =  —  =  —————

         1       8  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

3 0
3 years ago
Please can someone express √5 as a fraction? ​
VashaNatasha [74]
<h2>Answer:</h2>

<em>SInce this continued fraction does not terminate, we can tell that √5 cannot be represented as a terminating fraction - i.e. a rational number. So √5 is an irrational number a little smaller than 214=94 . For better rational approximations you can terminate the continued fraction after more terms.</em>

hope this help!

5 0
3 years ago
Find the slope for -5,9 and 5,5
posledela

Answer:

-0.4

Step-by-step explanation:

y=-0.4x+7

8 0
2 years ago
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