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vazorg [7]
3 years ago
12

Which is a multiple of 3​

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer: you forgot a picture but here are some

Step-by-step explanation:

6, 9, 12, 15 ect

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Simita has 25 coins, consisting of 10c and 5c, which total $2.25. how many of each does she have?​
Ilya [14]

Answer:

10c = 20

5c = 5

Step-by-step explanation:

Let x be the number of 10c coins; let y be the number of 5c coins. The total is $2.25, so the amount of 10c and 5c coins will add to that. Simita has 25 coins, so x and y, the number of coins, will have to add to 25. Hence, solve the simultaneous equation.

10x + 5y = 225 (1) - times by 0

x + y = 25 (2) - times by 5

10x + 5y = 225 (1)

5x + 5y = 125 (2)

Then, take equation 2 away from equation 1.

5x = 100

x = 20

Substitute x back into the original equation.

x + y = 25

20 + y = 25

y = 5

7 0
3 years ago
I need help with this paper
svp [43]

What grade is this?..

3 0
3 years ago
Read 2 more answers
BRAINLIST IF CORRECT! 10 POINTS!<br> What is the constant of proportionality if x is 3 and y is 9?
velikii [3]

Answer:

constant of proportionality, k is 3

Step-by-step explanation:

constant, k= y/x

k=9/3

 = 3

7 0
3 years ago
Help please? match each system of linear equation with the correct numbers of solutions ​
Ksenya-84 [330]

Answer:

Step-by-step explanation:

First system:  no solution, since the two lines are parallel; they never cross.

Second system:  one solution

Third system:  infinitely many solutions, since the second equation is a multiple of the first

4 0
3 years ago
Dominic is deciding if he should become a member of his local ice rink. The $144 annual membership fee at the ice rink includes
Alenkasestr [34]

Answer:

1. members = $ 160 , non members = $ 80

2. members = $ 168 , non members = $ 120

Step-by-step explanation:

For members

Annual membership = $ 144

rent per visit charges = $ 4

For Non members

parking charges = $ 5

admission charges = $ 11

rent per visit = $ 4

(1) for 4 visits

Members pay = $ 144 + 4 x $ 4 = $ 160

Non members pay = 4 x $ 11 + 4 x $ 5 + 4 x $ 4 = $ 80

So, non member ship is better.    

(2) for 6 visits

Members pay = $ 144 + 6 x $ 4 = $ 168

Non members pay = 6 x $ 11 + 6 x $ 5 + 6 x $ 4 = $ 120

So, non member ship is better.    

6 0
3 years ago
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