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yulyashka [42]
3 years ago
10

A letter to europe from the united states costs $0.80 to mail. a letter mailed within the united states cost $0.37. nancy mails

5 letters for $2.71, some to europe and some to the united states. how many letters did she send to europe?
Mathematics
1 answer:
densk [106]3 years ago
5 0
She only sen 2 to Europe.
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Qhich are the solutions of the quadratic equation x^2=9x+6
Lera25 [3.4K]

x^2-9x-6=0


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3 0
3 years ago
Write a linear factorization of the function. f(x) = x4 + 64x2
german
F(X) = x^4 +64x^2 

x^4 +64x^2 = x^2(x^2 +64)

hope this will help you 
7 0
3 years ago
You invest $25/month at a rate of 3.25% APR compounded monthly for 30 years. What is the total interest earned and final balance
VikaD [51]

The total interest earned is 40.75 and the final balance is 65.75

<u>Solution:</u>

Given, principle amount P = 25

Interest rate r = 3.25\% = \frac{3.25}{100} = 0.0325

Times compounded per year n = 12

Time in years t = 30

Amount \ A=P\left(1+\frac{r}{n}\right)^{n t}

On substituting the values we get

A = 25 [ 1+ \frac{0.0325}{12}]^{12\times30}= 25 [2.63]= 65.75

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7 0
3 years ago
Find the missing length of the triangle. a= ? b=4 c=12 1/3
Llana [10]

Answer:

a = 12.93

Step-by-step explanation:

Convert to decimal: 12 1/3 = 12.3

Pythagoras (a^2 = b^2 + c^2):

4^2 = 16

12.3^2 = 151.29

16+151.29 = 167.29

a = √167.29

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3 0
3 years ago
The list price on slacks is $22, and the list price on jumpers is $37. If Petit’s Clothing Store orders 30 pairs of slacks and 4
hichkok12 [17]

Answer:

The trade discount is

$235.4

Step-by-step explanation:

Given data

Slacks= $22

Jumpers= $37

Number of orders for Slacks= 30

Number of orders for Jumpers= 40

Total cost

22*30=$660

37*40=$1480

=$2140

11% discount can be computed as

=11/100*2140

=$235.4

7 0
3 years ago
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