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KiRa [710]
3 years ago
15

Cookies are sold singly or in packages of 3 or 9. With this​ packaging, how many ways can you buy 18 ​cookies?

Mathematics
2 answers:
statuscvo [17]3 years ago
7 0
Six ways can be made 
zvonat [6]3 years ago
4 0
6 packs of 3
2 packs of 9
3 packs of 3, 1 pack of 9 

answer: 3 ways
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In Amy’s backyard, there are also chickens and rabbits. There are 5 more chickens than rabbits. The total number of legs is 130.
Butoxors [25]

Answer:

There are 25 chickens and 20 rabbits

Step-by-step explanation:

Let

x-----> the number of chickens

y ----> the number of rabbits

Remember that

1 chicken has two legs

1 rabbit has four legs

so

2x+4y=130 -------> equation A

x=y+5 -----> equation B

Substitute equation B in equation A and solve for y

2(y+5)+4y=130

2y+10+4y=130

6y=120

y=20 rabbits

Find the value of x

x=y+5

x=20+5=25 chickens

3 0
3 years ago
A musician has just purchased a theremin — an instrument that can be played by moving your hands in the air. For every 30 centim
Kobotan [32]

Answer:

1665 hertz

Step-by-step explanation:

30 x 3.33 = 1 (1 meter) so 500 x 3.33 = 1665 (1 meter of movement)

8 0
2 years ago
James went out for. a long walk . he walked 3/4 mile and then sat down to take rest. then walked 1/8 of a mile how far did he wa
Karo-lina-s [1.5K]

change 3/4 to 6/8 and add 6/8 and 1/8 to get 7/8

he walked 7/8 miles in total :)

6 0
3 years ago
Which place is the 4 in? 815.604 hundreds hundredths thousandths tenths
Aleonysh [2.5K]

Answer:

Hundredths I think :D

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
4 – 15 ÷ (30 – 33) =
cupoosta [38]

Answer: 9

Step-by-step explanation:

    We will use the Order of Operations to solve.

 Given:

4 – 15 ÷ (30 – 33)

 Subtract 33 from 30:

4 – 15 ÷ (– 3)

 Divide -15 by -3:

4 + 5

 Add 4 to 5:

9

7 0
2 years ago
Read 2 more answers
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