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3 years ago

6. Ria purchased a car for

Mathematics

1 answer:

Alborosie3 years ago

5 0

9514 1404 393

Answer:

a) $15,779.70

b) $13,679.70

c) $210.92

Step-by-step explanation:

a) When tax is added, the total cost is ...

total = price × (1 +tax rate)

total = $14,775 × 1.068 = $15,779.70

b) The amount financed is the difference between the total cost and the down payment.

financed = total - down35

financed = $15,779.70 -2100 = $13,679.70

c) The monthly payment is found using the amortization formula. It can also be found using any of a number of financial calculators, spreadsheets, or apps.

A = P(r/12)/(1 -(1 +r/12)^-n) . . . . annual rate r, n monthly payments, principal P

A = $13,679.70(0.035/12)/(1 -(1 +0.035/12)^-72) ≈ $210.92

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gabriel bought 3 books that were all the same price he paid a total of $40.20. what is the cost of one book

vova2212 [387]

40.20/3 = 13.4 One book costs 13.4 $

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4 years ago

For one History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly. What percent

muminat

Answer:

Keith scored 70% on the History test.

Step-by-step explanation:

We have been given that for History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly.

To find the percentage Keith got on History test, we will have to figure out 28 is what percent of 40.

$\text{Percentage scored by Keith on History test}=\frac{28}{40}\times 100$

$\text{Percentage scored by Keith on History test}=0.7\times 100$

$\text{Percentage scored by Keith on History test}=70$

Therefore, Keith scored 70% on the History test.

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4 years ago

Please help!! I'm desprate

Orlov [11]

Answer:

Step-by-step explanation:

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3 years ago

I need some help with this

Korvikt [17]

The following can be deduced from the expressions

m ∠ D = 4 × m ∠ A
m ∠ B = 3 × m ∠ A-12

Please note that the sum of angles in a triangle is 180 degress. Therefore,

M∠ A + m ∠ B + m ∠ D = 180equation(3)

Substitute for equation 1 and 2 in equation 3 as shown below

m ∠ A + 3 × m ∠ A - 12^0 + 4 x m ∠ A =180^0
m ∠ A + 3 × m ∠ A + 4 x m ∠ A = 180^0+12^0
8m ∠ A = 192^0
m ∠ A= 192^0/8
m ∠ A=24^0

Substitute for m∠A= 24 in equation 1 and 2 as shown below

m ∠ D = 4 × m ∠ A
m ∠ D = 4 × 24^0
m ∠ D = 96^0
m ∠ B = 3 × mA - 12^0
m ∠ B = 3 × 24^0 - 12
m ∠ B = 72^0 - 12^0

,

∠= °

∠= °

∠= °

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3 years ago

Find the inverse function of f(x)=15x-1

Masja [62]

Answer:

f'(x) = (x + 1)/15

Step-by-step explanation:

f(x) = 15x -1,

Think of the term "f(x)" as a single variable, then solve for the term "x", manipulate the equation like how one would manipulate a literal equation, by inverse operations.

f(x) = 15x - 1

+1 +1

f(x) + 1 = 15x

/15 /15

(f(x) + 1)/15 = x

This means that (denote in the way one would denote an inverse of a function);

f'(x) = (x + 1)/15

6 0

3 years ago