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Sliva [168]
3 years ago
11

Draw a model, and write an equation to represent "4 times as many as 3 is 12." explain your work

Mathematics
2 answers:
Marina CMI [18]3 years ago
7 0
I dont know the answer sorry am a biginner
Lera25 [3.4K]3 years ago
6 0

so you need to think 3 times 4 and you would multiply that it will give u the answer of 12 so the answer is 12

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5 0
3 years ago
Clodagh and Eva went school supply shopping together. Clodagh bought 3 packs of pencils and 5 notebooks for a total of $18. Eva
elena55 [62]

Answer:

each notebook costs $2.70

each pack of pencils costs $1.50

Step-by-step explanation:

system of equations:

let p = pack of pencils

let n = notebook

3p + 5n = 18

4p + 4n = 16.8

I used the elimination method by multiplying the first equation by 4 and the second equation by -3

4(3p + 5n = 18)  =  12p + 20n = 72

-3(4p + 4n = 16.8)  =  -12p -12n = -50.4

adding the new equations together you get:  8n = 21.6

n = 21.6/8

n = $2.70

solve for 'p':

3p + 5(2.7) = 18

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3p = 4.5

p = $1.50

4 0
3 years ago
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