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hram777 [196]
2 years ago
15

Work out the highest common factor (HCF) of 18 and 30

Mathematics
1 answer:
Paraphin [41]2 years ago
3 0

18 = 2\times 3 \times 3\\\\30 = 2 \times 3 \times 5\\\\\text{HCF}~ = 2\times 3 = 6

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There are 10 computers and 5 students. How many ways are there for the students to sit at the computers if no computer has more
mestny [16]

Answer:

30,240 ways

Step-by-step explanation:

This question is bothered on permutation. Permutation has to do with arrangement.

If there are 10 computers and 5 students, the number of ways students will sit at the computers if no computer has more than one student can be expressed as;

10P5 = 10!/(10-5)!

10P5 = 10!/(5)!

10P5 = 10*9*8*7*6*5!/5!

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10P5 = 30,240

Hence the number of ways is 30,240 ways

6 0
3 years ago
HELP ME ON THIS PLSS Kathy swims at least 6 laps everyday. Write an inequality to show how long Kathy swims each day.
mina [271]

Answer:

x ≥ 6.

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Given : Kathy swims at least 6 laps every day.

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We can see from given statement Kathy can swim 6 laps or greater then 6 laps in a day.

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3 0
2 years ago
Can someone help me?
Whitepunk [10]

Answer:

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5 0
3 years ago
What is the greatest common factor of 3 and 27?
Drupady [299]

Answer:

3

Step-by-step explanation:

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8 0
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Read 2 more answers
Answer A, B, C, Please, and Thanks!
DochEvi [55]

A) The variable on the horizontal axis of the graph (the independent variable) is "pounds of rice". That is what the first number in the ordered pair (6, 18) represents.

The variable on the vertical axis of the graph (the dependent variable) is "total cost in dollars". That is what the second number in the ordered pair represents.

(6, 18) represents that the total cost of purchasing 6 lbs of rice is $18.

B) The unit price is found at the point where the independent variable has the value 1. That would be at the point (1, 3), which indicates the unit price is $3 per pound.

C) You would have to buy 4 lbs of rice for the total cost to be $12. There are at least two ways to find the answer.

  1. Draw a horizontal line on the graph at cost = $12. It intersects the graph at lbs = 4.
  2. Divide the total cost by the unit price. $12/($3/lb) = 4 lb.
7 0
3 years ago
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