3 years ago

150n-1,200 Determina su sueldo si vende, 5, 9 y 12 pantallas.

Mathematics

1 answer:

frosja888 [35]3 years ago

4 0

Answer:

yy po sa points heheheheheheh

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A construction team gives an estimate of three months to repave a large stretch of a very busy road with their core crew of 9 pe

Licemer1 [7]

Answer:

Step-by-step explanation:

9 crew members complete a job in 3 months

Number of crew members is inversely proportion to construction time :

Let :

Crew members = m

Construction time = t

m α 1 /t

m = k/t

m = 9 ; t = 3

9 = k /3

k = 27

If t = 1 (one month)

m =?

m = k/t

m = 27 / 1

Hence;

m = 27 * 1

m = 27 workers

6 0

2 years ago

Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 50 provided a sample mean of 19.4. The population stand

goblinko [34]

Answer: p-value is 0.016.

Step-by-step explanation:

Since we have given that

$H_0:\mu=20\\\\H_a:\mu$

Sample mean = 19.4

Sample size n = 50

Standard deviation = 2

We need to find the test statistic value which is given by

$z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\\\z=\dfrac{19.4-20}{\dfrac{2}{\sqrt{50}}}\\\\\\z=\dfrac{-0.6}{0.28}\\\\z=-2.14$

p-value is given by

$P(Z>Z_{critical})\\\\=P(Z>-2.14)\\\\=0.016$

Hence, p-value is 0.016.

8 0

3 years ago

Find the difference. <br> - 4 1/9 - 7 2/3<br> **Answer should be a fraction**

olganol [36]

Answer:

your answer is

$- 11 \frac{7}{9}$

4 0

2 years ago

(-3c+6) + (-c+8) simplify with a step by step please

mel-nik [20]

Step-by-step explanation:

$= ( - 3c + 6) + ( - c + 8)$

$= - 3c + 6 - c + 8$

$= - 3c - c + 6 + 8$

= -4c + 14

hence -4c + 14 is the answer ...

hope it helped !!

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2 years ago

What fraction of his allowance did he spend on monday 1/6 3/6?

natima [27]

Is this from iready cuz I don’t I’ve had that question before

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3 years ago