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Setler [38]
4 years ago
9

Need help with these 2 problems on my homework.

Mathematics
1 answer:
poizon [28]4 years ago
4 0
4. 55 + 0.65*55 =  $90.75

5. 90.75 * 0.25*90.75 = $113.44

6. 113.44 - 0.33*113.44 = $76.00
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Evaluate r2 for for = 3.14 and r = 3.
Sonbull [250]
//I take it you're trying to find the area or circumference of a circle, so I'll do both.

\pir^{2} = area
3.14 * <span>3^{2} = 28.26 (2 d.p)

</span>2\pir = circumfrence
<span>2 * 3.14 * 3 = 18.84 (2 d.p)</span>
3 0
4 years ago
Read 2 more answers
Suppose you invest $200 a month for 7 years into an account earning 9% compounded monthly. After 7 years, you leave the money, w
never [62]

Answer:

$172,806.37.

Step-by-step explanation:

Total = [ P(1+r/n)^(nt) ] + [ PMT × (((1 + r/n)^(nt) - 1) / (r/n)) ] * (1 + r/n)

is the formula  for the amount left after the first 7 years where the money is deposited at the beginning of each month and P = initial amount,  PMT = monthly payment, r = rate as a decimal and t = time in years.

Total after the first 7 years

=  [ 200(1+0.09/12)^(7*12) ] + [ 200 × (((1 + 009/12)^(7*12) - 1) / (0/09/12) ] * (1 + 0.09/12)

= 374.64 +  (200 * 0.8732019633) / (0.09/12) * (1 + 0.09/12)

= 374.64 + 23485.386 * 1.0075

= $24.036.17

Total after a further 22 years:-

=  24.036.17(1 + 0.09/12)^(12*22)

=  $172,806.37 (answer).

3 0
3 years ago
Last week, Kip went to the fair. It costs $4.59 to enter the fair and $1.25 per ticket. In the equation below, x represents the
Ainat [17]

Answer:

B.) 15

Step-by-step explanation:

Fist you want to plug in 23.34 as your Y. Next you want to subtract 4.59 from 23.34. Finally, to get the variable alone, divide the answer you got from subtracting by 1.25.

3 0
2 years ago
Help me please!!!!!!​
madam [21]

Answer:

Step-by-step explanation:

the answer is 2

8 0
3 years ago
What is the decimal equivalent of the fraction 8/15?
Over [174]

Answer:

0.53333...

(0.53 with the 3 recurring).

 

Step-by-step explanation:

Do the division:

15 ) 8.0000 (0.533....

        75

           50

           45

              50

               45

6 0
4 years ago
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