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2 years ago

14

A door measuring 72cm by 1.8m was manufactured by a carpenter who prepared it using 74cm by 1.82m. Find the percentage error in

a)the length and breadth of the door

1 answer:

pantera1 [17]2 years ago

8 0

Step-by-step explanation:

so a door is a rectangle and they want the answer in breadth 72 cm and 74cm into m

then divie it by by

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9750 min or 162.5 hours

Step-by-step explanation:

375 times 26 = 9750

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The graph of a proportional relationship contains the point (-30, 18)

Elena L [17]

Answer:

$k=-\frac{3}{5}$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

we have the point (-30,18)

so

x=-30, y=18

Find the value of k

$k=\frac{y}{x}$

substitute

$k=\frac{18}{-30}$

Simplify

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3 years ago

You estimate that your new business's revenue will grow at a compounded rate of 30% each month for the first 6 months. If your t

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Answer:

b

Step-by-step explanation:

The formula for calculating future value:

FV = P (1 + r)^n

FV = Future value

P = Present value

R = interest rate

N = number of years

let a = second month's revenue

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