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KiRa [710]
3 years ago
7

589=7 times 84 + n ?

Mathematics
2 answers:
marusya05 [52]3 years ago
6 0
7 times 84 is 588 so n equals 1
Alex787 [66]3 years ago
3 0
Isolate the variable by subtracting the product of 7 times 84, which is 587, from 588 and 589, leaving you with n=1
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Sarah is unsure how long it will take her to save $50,000. She knows that she'll make an initial investment of $5,000. About hwo
Dmitriy789 [7]

Answer:

Simple Interest: A = P(1+rt)

Step-by-step explanation:

P: the principal, the amount invested

A: the new balance

t: the time

r: the rate, (in decimal form)

Ex1: If $1000 is invested now with a simple interest of 8% per year. Find the new amount after two years.

P = $1000, t = 2 years, r = 0.08.

A = 1000(1+0.08(2)) = 1000(1.16) = 1160

8 0
3 years ago
You split $1500 between two savings accounts one pays 4%interest and the other pays 5% after one year you have earned $69.50 in
ANTONII [103]

Answer:

Step-by-step explanation:

Use the basic simple interest formula:

P * r * t = I and put the info into a table with those variables along the top, formig the columns we need:

                   P       *       r       *       t      =       I

Acct 1

Acct 2

If we have a total of 1500 to split up between 2 accounts, we put x amount of money into one and then have 1500-x left to put into the other.  We will fill those in along with the interest rates in decimal form and the time of 1 year:

                   P        *        r        *        t        =        I

Acct 1           x               .04                1

Acct 2     1500-x          .05                 1

Looking at the formula we are told that Prt = I, so we will multiply P times r times t and fill in the I column:

                  P        *        r        *        t        -        I

Acct 1         x                 .04              1               .04x

Acct 2    1500-x           .05               1          .05(1500-x)

The total Interest earned by the addition of the interest earned from both accounts is 69.50.  So we add the interest column together and set it equal to 69.50:

.04x + .05(1500 - x) = 69.50 and

.04x + 75 - .05x = 69.50 and

-.01x = -5.5 so

x = 550

That's how much money is in the account earning 4% interest.

7 0
3 years ago
What is the product?<br> 3x[-6 -14 -11 -9]
suter [353]

Answer:120

Step-by-step explanation:

calculate the sum of the negetive numbers 3x-40

=120

8 0
3 years ago
Which of these is a rational number<br><br>A. √150<br>B. √441<br>C. √200<br>D.√250
dlinn [17]
B. sqrt(441) is rational
4 0
4 years ago
Read 2 more answers
2/5 with an exponent of 3
ch4aika [34]

Answer:

2/5 with an exponent of 3 is 8/125 or 0.064

Step-by-step explanation:

Given:

A fraction = 2/5

Exponent = 3

To find the value of the fraction using the exponent.

We know that :

⇒ (a)^3=a\times a\times a  

The exponents is the number of times a number is multiplied.

So,

⇒ (\frac{2}{5})^3

⇒ \frac{2\times 2\times 2}{5\times 5\times 5}

⇒ \frac{8}{125}

On further division the number can be written as 0.064

5 0
3 years ago
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