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HACTEHA [7]
2 years ago
14

Tom deposits $300 into an account that pays simple interest at a rate of 4% per year. How much interest will he be paid in the f

irst 6 years?
Mathematics
1 answer:
seropon [69]2 years ago
8 0

Answer:

22.90 is the answer i can't write somet

use my computer has problems

I = P*r*t = 800*0.06*2 =

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A trader bought m apples for $12.
Aleks [24]

Answer:

a) total cost of m apples= $12 = 1200 cents

($1= 100cents, so $12= 12×100 cents)

cost of each apple= 1200/m

b) Number of apples sold= m-3

selling price of each apple= (1200/m) +2

Total sum received from sales:

(\frac{1200}{m}  + 2)(m - 3) \\  =  \frac{1200}{m} (m) - 3( \frac{1200}{m}) + 2m   -  3(2)  \\  = 1200 -  \frac{3600}{m}  + 2m - 6 \\  = (2m + 1194 -  \frac{3600}{m} ) \: cents

c) profit= amount received- amount spent on buying apples

96= 2m +1194 -3600/m -1200

2m -6 -96 -3600/m =0 (simplify, bring 96 over)

2m- 102 -3600/m =0

2m^2 -102m -3600 =0 (multiply by m on both sides)

m^2 -51m -1800 =0 (divide by 2 on both sides)

(shown)

d) m^2 -51m -1800=0

x =   \frac{ -b± \sqrt{{b}^{2} - 4ac }   }{2a}

Hence, using the above formula,

m =  \frac{ - ( -51)± \sqrt{( - 51) {}^{2} - 4(1)( - 1800) } }{2(1) }  \\ m =  \frac{51± \sqrt{9801} }{2}  \\ m = 75 \:  \:  \:  \:  \: or \:  \:  \:  \:  \: m =  - 24

e) Thus, selling price of each apple

= 1200/75 +2

= 18 cents

This is found by substituting the value of m, which is 75, into the equation of the selling price of each apple which we found earlier in part b.

note: do not reject m= -24 in part d because you are simply solving the equation not finding out the number of apples the trader bought, m.

We ignore m= -24 in part e as it is not possible for the number of apples bought be a negative number

6 0
3 years ago
How are the independent and dependent variables related?
zmey [24]
I believe it’s Independent is what changes///dependent is affected by the independent or something similar hope this helps let me know if I’m wrong but I don’t think I am
4 0
2 years ago
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3 years ago
Find 10 rational number between 6/7 and -5/7 please give me right solution​
erik [133]

Answer:

Step-by-step explanation:

Note that the distance from -5/7 to 6/7 is 6/7 - (-5/7) = 11/7.

So, if you take steps of 1/7 each, there are 10 steps between -5/7  = 11/7.

-4/7, -3/7, -2/7, ..., 5/7

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3 years ago
I wanna know: [3,5]={3,4,5}? Why?
Agata [3.3K]

Answer:

Yes if [3,5] is a set of integers then it contains elements 3,4,5

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