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Sladkaya [172]
3 years ago
9

Find the simple interest earned to the nearest cent for each principal, interest rate, and time. $300, 5%, 2 years

Mathematics
1 answer:
Olegator [25]3 years ago
6 0

Answer:

<u><em>$330</em></u>

Step-by-step explanation:

Since it is simple interest. You would do 300*.05 which would be 15 than since it is simple interest you would do it again and get 15 again. Therefore you would have $330.

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klio [65]
First picture)
I: 5x+2y=-4
II: -3x+2y=12

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5x+2y-(-3x+2y)=-4-12
8x=-16
x=-2

insert x=-2 into I:
5*(-2)+2y=-4
-10+2y=-4
2y=6
y=3

(-2,3)

question 6)
I: totalcost=115=3*childs+5*adults
II: 33=adults+childs
33-adults=childs

insert childs into I:
115=3*(33-adults)+5*adults
115=99-3*adults+5*adults
16=2*adults
8=adults

insert adults into II:
33-8=childs
25=childs

so it's the last option

question 7)
a) y<6 and y>2 can also be written as 2<y<6, so solution 3 exist for example
b) y>6 and y>2 can also be written as 2<6<y, so solution 7 exist for example
c) y<6 and y<2 inverse of b: y<2<6, so for example 1
d) y>6 and y<2: y<2<6<y, this is impossible as y can be only either bigger or smaller than 2 or 6

so it's the last option

question 8)
I: x+y=12
II: x-y=6

subtract: I-II:
x+y-(x-y)=12-6
2y=6
y=3

insert y into I:
x+3=12
x=9

(9,3)

question 9)
I: x+y=6
II: x=y+5

if you take the x=y+5 definition of II and substitute it into I:
(y+5)+y=6

which is the second option :)
5 0
3 years ago
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Answer:

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Step-by-step explanation:

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ankoles [38]

Answer: the docx isn’t working so I can’t answer it

Step-by-step explanation:

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Which of these points lies on the line described by the equation below y-4=-2(x-6)?​
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Step-by-step explanation:

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