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Molodets [167]
3 years ago
13

The length of a side of a square field is 48m.Find the cost of ploughing the field at the rate of rs 25/m and cost of fencing th

e field at the rate of rs 18/m
Mathematics
1 answer:
brilliants [131]3 years ago
8 0

Answer: rs 4800, rs 3456

Step-by-step explanation:j

given data:

length of a sid = 48m

cost of ploughing the field = rs 25/m

cost of fencing the field = rs 18/m

solution:

we know a square has four equal sides. so total length of the field is

= m ( 48 + 48 +48 + 48 )

= 192m

cost of ploughing the field

= 192m * rs 25

= rs 4800

cos of fencing the field

= 192m * rs 18

= rs 3456

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Sauron [17]

Answer:

<h2>61°</h2>

Step-by-step explanation:

Use the sine law:

\dfrac{MO}{\sin(\angle N)}=\dfrac{NM}{\sin(\angle O)}

We have:

MO=18\\\\NM=6\\\\m\angle O=17^o\to\sin17^o\approx0.2924

Substitute:

\dfrac{18}{\sin(\angle N)}=\dfrac{6}{0.2924}         <em>cross multiply</em>

6\sin(\angle N)=(18)(0.2924)

6\sin(\angle N)=5.2632          <em>divide both sides by 6</em>

\sin(\angle N)=0.8772\to m\angle N\approx61^o

4 0
3 years ago
Claire made $160 babysitting last summer. She put the money in a savings account that pays 3% interest per year. If Claire doesn
aleksklad [387]

We can make and use the equation: <em>A = 160( 1.03 )^y</em>: A = amount, 160 = amount put in, 1 + .03 = 1.03 = interest, and y as the number of years, as the money is compounded every year. (This is the compound interest equation, but I put in the numbers)

A) 160 * 1.03 = $164.80, 160 * 1.03² = $169.744 ≈ $169.74

B) 160 * 1.03⁵ = 185.48385 ≈ $185.48

The expression is the same as saying (((((160 * 1.03)1.03)1.03)1.03)1.03). This is like multiplying 160 * 1.03, which gives the amount for the first year. Then, that amount is multiplied by 1.03, which is the amount for the second year. This isi repeated until 5 years.

C) 160(1.03)³⁰

7 0
3 years ago
US consumes 5.03 million metric tons of bananas per year. There are 313 million people in the US there are 1000kg in 1 metric to
Charra [1.4K]

Answer:

Step-by-step explanation:

Let's first start with the unit rate of how many metric tons each person eats per year, then we will convert metric tons to kg.

5.03/313 = .0160702875 metric tons of bananas per person

Using the conversion given:

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7 0
3 years ago
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Andrews [41]

Answer:

1 is 3.5

2 is 480

3 is 15

4 is 2.5

5 is B and D

7 0
3 years ago
What is the number 4.082 rounded to nearest hundreth?
iragen [17]
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3 years ago
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