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Ipatiy [6.2K]
3 years ago
8

We tried so many ways but we are just that stupid. Please explain work.

Mathematics
2 answers:
noname [10]3 years ago
5 0
Its 41 if rounded because it is a decimal. Basically you do 25*3 to convert into feet then you do *12 to convert into inches then you divde by 22 and you get 40.9.
Roman55 [17]3 years ago
3 0
25 Yards, three ribbons, so 25*3, thats 75 yards.
Convert 75 yards to Inches, you get 2700 inches, divide 2700 by 22.
You get 122.72 Repeating, round up.
Your Answer is A, 123


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20 people applied for a job. Everyone either has a school certificate or diploma or even both. If 14 have school certificates an
STatiana [176]

Given:

Either has a school certificate or diploma or even both = 20 people

Having school certificates = 14

Having diplomas = 11

To find:

The number of people who have a school certificate only.

Solution:

Let A be the set of people who have school certificates and B be the set of people who have diplomas.

According to the given information, we have

n(A)=14

n(B)=11

n(A\cup B)=20

We know that,

n(A\cup B)=n(A)+n(B)-n(A\cap B)

20=14+11-n(A\cap B)

20=25-n(A\cap B)

Subtract both sides by 25.

20-25=-n(A\cap B)

-5=-n(A\cap B)

5=n(A\cap B)

We need to find the number of people who have a school certificate only, i.e. n(A\cap B').

n(A\cap B')=n(A)-n(A\cap B)

n(A\cap B')=14-5

n(A\cap B')=9

Therefore, 9 people have a school certificate only.

3 0
2 years ago
A number raised to a negative exponent is negative. always never sometimes
Romashka [77]
It is negative only when the number itself is negative.
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8 0
3 years ago
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A comet travels at an average speed of 273,000 km/h.
vaieri [72.5K]

Answer: 52,416,000 km

Step-by-step explanation:

If a comet travels 273,000 km/hr

1) Multiply 273,000 km by 24 hours to find how far the comet travels in one day

2) multiply the answer from 1 by 8 to determine how far it travels in 8 days

1) \frac{273,000 km}{hr}*\frac{24 hr}{1 day} = \frac{6,552,000km}{day} (hours cancel out)

2)\frac{6,552,000km}{day}*8 day= 52,416,000 km in 8 days

The comet approximately travelled 52,416,000km from when it began to travel to when it reached Earth. Hope this helped :)

5 0
3 years ago
1/4x+2=-4 how do you do this step by step?​
lutik1710 [3]
It’s a process of bringing one variable to the side with different forms of mathematical properties. First, subtract 2 from the left side and add it to the right side. Then divide 1/4x by 1/4 to get x alone, and divide the right side (-2) by 1/4, which will give you the answer to x. Let me know if you need help with anything else!
8 0
3 years ago
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I WILL MARK U BRAINLIEST PLEASEEE HELP ME WITH THIS!!!
slamgirl [31]

Answer:

this is answer

Step-by-step explanation:

Right now I don't have time. If u have doubt, send me a message. And I'll explain later.

hope it helps ☺️

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