Please I need a method. Thanks.

Please I need a method. Thanks.

Determine the number of ways to choose five numbers from the first 18natural numbers such that any two chosen numbers differ by at least 2.

Any arithmetic operator can be used but not %10..

A number whose square is 4 less than twice the square of 10

(13)73+(14)3 is divided by 11

pan S is used to hold measuring weights and pan R is used to hold the object weighed . what is the LEAST no of weights of whole number denomination that can be used to balance any whole number weight...

John brought 4 pounds of almonds for a total of cost of $22 THe cost per pound for cashews is 60% MORE than the cost per pound for almonds. john bought enough cashews taht, when...

Jenny and Mark share some money in the ratio two to three. Jenny’s share is one hundred and ten pounds. How much is Mark’s share?

The net of a triangular prism is made from triangles and rectangles. How many of each shape are needed?

The answer was 2 1/2 feet. but im wondering how that is the answer? ive tried to solve it but had no success. i would like a brief explanation as to how to solve this problems and problems like it...

Two girls are practising their arithmetic. They take two different numbers. The first girl finds half the sum of the numbers and divides her answer by 3. The second girl, multiplies the sum of the...

the length of her run from the previous saturday by 2km. Show that the total distance she runs on saturdays in n weeks of training is n(n+4) km.

the price of a $24 book was reduced by $8. by what percent was the price reduced?

on a certain test, bill has 50 minutes to answer 75 questions. he should answer an average of how many questions every 10 minutes in order to answer all of the 75 questions in the 50 minutes allowed...

if elaine bought 6 pizz for a party and 9 people ate 2/8 of a pizza, how much pizza was eaten?

There are a total of 4 questions. A) the first factor is 1/4 B)the first factor is 2 C)the first factor is 3/5 D)the first factor is 6 A) 1/4 = 0,25 0,25*4=1 B)...

Find the total amount she earns (assuming no other rises), a) in the first 10 years and b) over 15 years.

a) Show that 10a+45d=162 Given that the sixth term of the sequence is 17. b) Find the value of a and d.

Sum first 3 numbers 12

n(2n+1) sum first 2n natural numbers

Louis I.

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