Alesha bought a monster using only silver coins. It cost her 45p. There are nine different ways to pay 45p exactly using only silver coins. Find as many as you can. What if the monster cost 50p? How many different

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21-03-2015
Mathematics

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Alesha bought a monster using only silver coins. It cost her 45p. There are nine different ways to pay 45p exactly using only silver coins. Find as many as you can. What if the monster cost 50p? How many different

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Анонимidn Анонимidn · Answer 1 · 2015-03-21T07:34:55-04:00

The nine ways to pay 45p are:
Two 20p and one 5p
One 20p, two 10p and one 5p
One 20p, one 10p and three 5p
One 20p and five 5p
Four 10p and one 5p
Three 10p and three 5p
Two 10p and five 5p
One 10p and seven 5p
Nine 5p

There are 13 ways to pay 50p:
Two 20p and two 5p
One 20p, two 10p and two 5p
One 20p, one 10p and four 5p
One 20p and six 5p
Four 10p and two 5p
Three 10p and four 5p
Two 10p and six 5p
One 10p and eight 5p
Ten 5p
Two 20p and one 10p
One 20p and two 10p
Five 10p
One 50p

SimranKidn SimranKidn · Answer 2 · 2015-03-21T07:48:49-04:00

9 x 5p
7 x 5p,
1 x 10p
5 x 5p,
1 x 20p 5 x 5p,
2 x 10p 3 x 5p,
1 x 10p,
1 x 20p 3 x 5p,
3 x 10p 1 x 5p,
4 x 10p 1 x 5p,
2 x 20p 1 x 5p,
2 x 10p,
1 x 20p
= 45p...........

50p: 13 ways

They are:10 x 5p8 x 5p + 1 x 10p6 x 5p + 2 x 10p6 x 5p + 1 x 20p4 x 5p + 3 x 10p4 x 5p + 1 x 10p + 1 x 20p2 x 5p + 4 x 10p2 x 5p + 2 x 10p + 1 x 20p2 x 5p + 2 x 20p5 x 10p3 x 10p + 1 x 20p1 x 10P + 2 x 20p1 x 50p hope i helped!!!!
ps make the brainst!!!!
;D

Sagot :

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