May u please give me word problems of Multiplying and dividing rational numbers

1 answer:

8 0

1. From a rope 11 m long, two pieces of lengths 13/5 m and 33/10 m are cut off. What is the length of the remaining rope?

2. A drum full of rice weighs 241/6 kg. If the empty drum weighs 55/4 kg, find the weight of rice in the drum.

3. A basket contains three types of fruits weighing 58/3 kg in all. If 73/9 kg of these be apples, 19/6 kg be oranges and the rest pears. What is the weight of the pears in the basket?

4. On one day a rickshaw puller earned $80. Out of his earnings he spent $68/5 on tea and snacks, $51/2 on food and $22/5 on repairs of the rickshaw. How much did he save on that day?

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How to solve this? Please help!

marta [7]

SinA=8/17, so arcsin(8/17) is your angle of A (around 49 degrees). 90-A is your angle for B

7 0

3 years ago

There are 92 students in a chemistry class. The instructor must choose two students at random. Students in a Chemistry Class Aca

Sergio039 [100]

Answer:

0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Probability that a sophomore non-Chemistry major

Out of 92 students, 9 are non-chemistry major sophomores. So

$P(A) = \frac{9}{92}$

Then a junior non-Chemistry major are chosen at random.

Now, there are 91 students(1 has been chosen), of which 10 are non-chemistry major juniors. So

$P(B) = \frac{10}{91}$

What is the probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random

$P = P(A)*P(B) = \frac{9}{92}*\frac{10}{91} = \frac{9*10}{92*91} = 0.0108$

0.0108 = 1.08% probability that a sophomore non-Chemistry major and then a junior non-Chemistry major are chosen at random.

8 0

3 years ago

I don’t know how to work i this out

snow_tiger [21]

Equation of the line:

y = -0.4x + 1.6

or
y =
- 2 x
5
+ 8
5
When x=0, y = 1.6
When y=0, x = 4

Mark brainliest please

Hope this helps you

8 0

3 years ago

Which explanation correctly solves this problem? A golf club has 85 golfers in a golf tournament. The golfers will ride in golf

Aleksandr [31]

The answer is A. 85/4=21 with 1 left over. They will need 22 golf carts.

5 0

3 years ago

A fish is 12 meters below the ocean what's it's elevation

mamaluj [8]

A fish is 12 meters below the ocean

below the ocean means lower than the surface (or in the negatives)

12 is the amount of meters it is at

-12 meters is your answer

hope this helps

6 0

2 years ago

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