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s2008m [1.1K]
3 years ago
15

c) The cost of 1 pen is Rs 10 and the cost of 1 pencil is Rs 8. Find the total cost of 5 pens and 4 pencils.​

Mathematics
2 answers:
otez555 [7]3 years ago
8 0

Answer:

82Rs

Step-by-step explanation:

let p be pen

let n be pencil

1p=10Rs

1n=8Rs

10×5=50

8×4=32

50+32=82Rs

Setler [38]3 years ago
3 0

Answer:

cost of 1 pen = ₹10

cost of 5 pens = 5×10 = ₹ 50

cost of 1 pencil = ₹8

cost of 4 pencil = 8×4 = ₹ 32

Total cost = 50 + 32 = ₹82

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9. Suppose you take out a car loan for $9999 for 4 years at a 7.5% interest rate. What is your
Alekssandra [29.7K]

Answer:

The monthly payment is $241.76.

Step-by-step explanation:

Given : Suppose you take out a car loan for $9999 for 4 years at a 7.5% interest rate.

To find : What is your monthly payment ?

Solution :

The formula to find monthly payment is  

M=\frac{\text{Amount}}{\text{Discount factor}}

Discount factor is D=\frac{1-(1+i)^{-n}}{i}

Substitute in the formula,

M=\frac{A}{\frac{1-(1+i)^{-n}}{i}}

M=\frac{A\times i}{1-(1+i)^{-n}}

where, A is the amount A=$9999

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i=\frac{r}{12}=\frac{0.075}{12}=0.00625

time t=4 years  

Time in months n=t\times 12=4\times 12=48

Substitute all the values in the formula,

M=\frac{9999\times 0.00625}{1-(1+0.00625)^{-48}}

M=\frac{62.49375}{1-(1.00625)^{-48}}

M=\frac{62.49375}{1-0.7415101}

M=\frac{62.49375}{0.25848}

M=241.76

Therefore, the monthly payment is $241.76.

3 0
3 years ago
What value of x makes the equation 5(4x - 1)=4(2.5x+8) true?
monitta

Answer:

37/10

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