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arsen [322]
3 years ago
15

Car leases generally allow only a certain number of miles to be driven. Myung’s lease included a charge of 25 cents per mile for

all miles above 12,000 per year. If Myung had a 3-year lease and was charged $1,640 at the end of the lease, how many miles had she driven during the 3 years?
Mathematics
1 answer:
faust18 [17]3 years ago
4 0

Answer:

36,000

Step-by-step explanation:

if you multiply 12,000 and 3 you get 36,000.

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Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4 given the same value of y?
jeka94
Hello there,

The correct answer is C

Here's why,
-9(-8/7)+4y=8 is -4/7

and

-3(-8/7)-y=4 is -4/7

Hope this helps!
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DerKrebs [107]

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Factorise the following expressions​.
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Answer:

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splitting the middle.

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=a(a+6)+4(a+6)

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Student Produced Response - Calculator
faltersainse [42]

Answer:

\dfrac{a}{b}=0.75.

Step-by-step explanation:

If two equations a_1x+b_1y+c_1=0 and a_2x+b_2y+c_2=0 has infinitely many solutions, then

\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}

The given equations are

ax+by=10

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It is given that the above system of equations has infinitely many solutions. So,

\dfrac{a}{3}=\dfrac{b}{4}=\dfrac{10}{20}

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Now,

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So, a=1.5 and b=2.

Now,

\dfrac{a}{b}=\dfrac{1.5}{2}=0.75

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