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BabaBlast [244]
3 years ago
10

1. If Sarah drinks 2 litres a day, how much will she drink in a week? And a month?​

Mathematics
2 answers:
Dmitry [639]3 years ago
8 0

Answer:

She will drink 14 litres in a week.

If the month has 28 days,

56 litres

If the month has 30 days,

60 litres

If the month has 31 days,

62 litres

Step-by-step explanation:

Pls mark as brainliest

erastova [34]3 years ago
7 0

Answer:

week = 7 days

7 × 2l = 14 liters in week

months = 30 days

30 x 2l = 60 liters in month

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Let's write some equations.

Mingwei's distance from Town A after x hours from 8:00 is 45x.

Ali's distance from Town B after x hours is 30x-20, since he doesn't start walking for 40 minutes.

When Mingwei's distance is twice Ali's, they've met up (since their distance from Town A is twice their distance from Town B).

So, this gives 45x=60x-40, so 15x=40, so x=\frac{40}{15} = \frac{8}{3}, so the time is 10:40.

After \frac83 hours, Mingwei has traveled 45 * 8 / 3 = 120 kilometers while Ali has traveled sixty, so the distance between the towns is 180 kilometers.
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3 years ago
According to a Gallup survey conducted in July 2011, 20% of Americans favor reducing the U.S. budget deficit by using spending c
Yakvenalex [24]

Answer:

Option C is correct.

The test statistic for this question is -3.13

Step-by-step explanation:

To compute the z-test statistic, the formula is given as

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μ₀ = p₀ = the proportion to be compared against, that is, the proportion of Americans that favor reducing the U.S. budget deficit by using spending cuts only, with no tax increases = 20% = 0.20

σₓ = standard error of the sample proportion = √[p(1-p)/n]

p = 0.15

n = Sample size = 500

σₓ = √[0.15×0.85/500] = 0.01597

z = (0.15 - 0.20) ÷ 0.01597

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Hope this Helps!!!

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Step-by-step explanation:

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Step-by-step explanation:

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