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Nesterboy [21]
3 years ago
10

I need help with this

Mathematics
2 answers:
STatiana [176]3 years ago
8 0

Answer:

in about 27 days

Step-by-step explanation:

i assumed 30 days per month when i set up this equation:

w = words learned daily

100 + 4w = 180 + 30/30w

100 + 4w = 180 + w

3w = 80

w = 26 2/3

son4ous [18]3 years ago
4 0

Answer:

3.86 weeks/three weeks

Step-by-step explanation:

x time it takes for thier vocab to be the same in days

so the boy lerns 360 words of spanish in a year

or 360/365 words of spanish per day which is 72/73 words per day

so,

100+4x=180+72x/73

80=288x/73-72x/73

80=216x/73

80*73=5,840

5,840=216x

27.037 days=x

so now we have to divide by seven to get weeks so that is 3.86 weeks.

so some time in week three

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