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BARSIC [14]
2 years ago
10

A rectangular lawn 80 m x 60 m has two roads each 10m wide running in the middle of it, one parallel to the length and the other

parallel to the breadth. Find the cost of gravelling them at ₹ 1.20 per sq meter.​
Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
6 0

Answer:

₹1680

Step-by-step explanation:

<u>Road</u>  <u>Length (m)</u>  <u>Width (m)</u>   <u>Area (</u>m^{2}<u>)</u>

  1            80              10              800

  2           60              10               600

(800+600) = 1400 <u>(</u>m^{2}<u>)</u>

<u></u>

1400 <u>(</u>m^{2}<u>)</u>*(₹ 1.20/m) = ₹1680

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3x(2x^2 + 6x + 8)<br><br><br><br><br><br>it's polynomial​
Natalija [7]

Hey! For these questions I'd reccomend m4thm4y. Ps I replaced the a with 4.

5 0
3 years ago
Anna has a 30-year, 5.75% mortgage on her $250,000 home. She has been
poizon [28]

Answer:

Her new monthly payment is now $1,378.91¢

Step-by-step explanation:

  For us to calculate the new monthly mortgage payment that Anna will start paying from now on, we need to input the formula for calculating monthly mortgage payments.

The formula is:-

          M = P [\frac{r(1+r)^{n} }{(1+r)^{n}-1}]

  Where M is the monthly mortgage payment.

              P is the principal

              r is the monthly interest rate calculated by dividing your annual interest rate by 12

             n is the number of payments(the number of months you will be paying the loan).

 In this case, the new principal that Anna must pay back is $231,905.47¢. The annual interest rate has been reduced to 5.17% from 5.75% so the new monthly interest rate will be obtained by dividing the new annual interest rate by 12

   = 5.17%/2

   = 0.431%

  This is the new monthly  interest rate.

  Since she has been paying her mortgage loan diligently for 5 complete years. It means she now has just 25 years to complete the payment. If 12 months make up one year, then there are - 12 × 25 = 300 more months to go.

   300 is therefore "n" that is required for the calculation.

All the terms needed for the calculation of her new monthly mortgage is now complete.

P = $231,905.47¢

r  = 0.431%

n = 300

             

 M = 231,905.47[\frac{0.00431(1+0.00431)^{300} }{(1+0.00431)^{300} -1}]

     = 231,905.47[\frac{0.00431(3.634)}{2.634}]

     = 231,905.47 × 0.005946

   M  = $1,378.91¢      

   Therefore her new monthly mortgage payment will become $1,378.91¢

4 0
4 years ago
Read 2 more answers
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Butoxors [25]
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5 0
3 years ago
In repeated samples, approximately 99% of all differences in sample means will fall within the bounds of the interval already co
Inga [223]

Answer:

a) True

Step-by-step explanation:

Repeated samples are a type of samples that are used to determine the features or characteristics or a given set of data.

In repeated samples, statistical techniques are applied whereby two samples that have similar characteristics are tested or analysed under different conditions.

Repeated samples can also be called matched or paired samples.

In repeated samples , we have what we refer to as confidence intervals. These are intervals whereby the true and correct value of certain parameters such as mean, the standard deviation of a given data or distribution is determined. We have confidence interval levels of 90%, 95% and 99%.

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529 = 50x + 625

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