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4 years ago

7

A scale distance of 3 centimeters on a map represents an actual distance of 51 feet.

2 answers:

Rom4ik [11]4 years ago

8 0

In this case, the best way to work this out is to find what 1cm is equal to. In this case, you have to divide 51/3, giving you 17. You know that 17 feet. You can now divide 187/17, giving you 11. Therefore, 11cm is equal to 187 feet. Hope this helps

Vanyuwa [196]4 years ago

7 0

If the distance is 51 feet in 3 cm
if the destance is 187 feet ..?cm
51 ....3
187...? =3 * 187/51
=3*3.58
=10.74 cm (hope it help)

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3 years ago

Determine the equation of the following polyromial that passes through point (0,6).

Ostrovityanka [42]

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3 years ago

Find the sum that amounts to Rs 9,144 in 3 years at 9% per year simple interest.

Hunter-Best [27]

Given:

Amount = Rs. 9,144

Time = 3 years.

Rate of simple interest = 9%

To find:

The principal value.

Solution:

The formula for simple interest is:

$I=\dfrac{P\times r\times t}{100}$

Where, P is principal, r is the simple rate of interest, and t is the number of years.

Putting $r=9,t=3$ in the above formula, we get

$I=\dfrac{P\times 9\times 3}{100}$

$I=\dfrac{27P}{100}$

$I=0.27P$

We know that,

$\text{Amount}=\text{Principal + Interest}$

$9144=P+0.27P$

$9144=1.27P$

Divide both sides by 1.27, we get

$\dfrac{9144}{1.27}=P$

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