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dalvyx [7]
1 year ago
6

The cost of 18 pens is Rs. 150 . Find the cost of 66 such pen

Mathematics
2 answers:
KatRina [158]1 year ago
8 0

Answer: Rs. 550

Step-by-step explanation:

18 pens - 150

1 pen - 150/18 = 8.33333333

66 pens = 66 x 8.33333333

Therefore , 66 pens cos Rs. 550

Korvikt [17]1 year ago
4 0
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) Tara earns twice as much per hour as Kayte.
Cerrena [4.2K]

Answer:

Austin's hourly wage is $8.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

Tara's hourly wage is x.

Kayte's hourly wage is y.

Austin's hourly wage is z.

Tara earns twice as much per hour as Kayte.

This means that x = 2y

Kayte earns $3 more per hour than Austin.

This means that y = z + 3

As a group, they earn $41 per hour.

This means that x + y + z = 41

What is Austin's hourly wage?​

This is z.

x + y + z = 41

y = z + 3 and x = 2y, so x = 2(z + 3) = 2z + 6

x + y + z = 41

2z + 6 + z + 3 + z = 41

4z + 9 = 41

4z = 32

z = \frac{32}{4}

z = 8

Austin's hourly wage is $8.

5 0
2 years ago
Read 2 more answers
A park ranger spent $208 to buy 12 trees.
mixas84 [53]

Let x represent number of redwood trees and y represent number of spruce trees.

We have been given that a park ranger bought 12 trees. We can represent this information in an equation as:

x+y=12...(1)

y=12-x...(1)

We are also told that redwood trees cost $24 each, so cost of x redwood trees would be 24x.

Each spruce tree costs $16, so cost of y spruce trees would be 16y.

Since the park ranger spent $208 on trees, so we can represent this information in an equation as:

24x+16y=208...(2)

Upon substituting equation (1) in equation (2), we will get:

24x+16(12-x)=208

24x+192-16x=208

8x+192=208

8x+192-192=208-192

8x=16

\frac{8x}{8}=\frac{16}{8}

x=2

Therefore, the park ranger bought 2 redwood trees.

Upon substituting x=2 in equation (1), we will get:

y=12-x\Rightarrow 12-2=10

Therefore, the park ranger bought 10 spruce trees.

3 0
1 year ago
Which of the following statement is true about k-NN algorithm?
BaLLatris [955]

The answer is D. All of the above.

The computational complexity of K-NN increases as the size of the training data set increase and the algorithm gets significantly slower as the number of examples and independent variables increase.

Also, K-NN is a non-parametric machine learning algorithm and as such makes no assumption about the functional form of the problem at hand.

The algorithm works better with data  of the same scale, hence normalizing the data prior to applying the algorithm is recommended.

6 0
2 years ago
There are 1800 gym members in total. 3 4 are aged 25 - 59 years, 1 5 are over 60 years and the remainder are under 25 years. How
fomenos
There are 1751 members under the age of 25.

7 0
2 years ago
A large ice chest holds 62 liters of water. A smaller chest holds 4/5 as much water
dedylja [7]

Answer:

Step-by-step explanation:

Since a large ice chest holds the water = 62 liters

And smaller chest holds the water = \frac{4}{5} of the larger ice chest

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Therefore, fraction that represents the amount of ice water in the smaller ice chest will have 0 in the first box, 248 in the numerator and 5 in the denominator.

0\frac{248}{5}

6 0
2 years ago
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