I need help like asap thank youuu

Can someone pls help me with this last question

Jlenok [28]

Answer:

33/4 hope it helps youuuuuuuuu

7 0

3 years ago

If Teri ran 8 kilometers. Which measurement of miles Teri ran

schepotkina [342]

There is 0.62137119 miles to 1 kilometer so 8 kilometers = 4.971 or (5 miles rounding) multiply 0.6 x 8 = 4.971 but u can sensibly say 5 miles

6 0

4 years ago

12 chickens lay 30 eggs eggs. What is the unit rate in eggs per chicken?

Julli [10]

Step-by-step explanation:

The unit rate would be how many eggs one chicken lays

To do this, you would create a ratio

30:12 = x:1

30 = 12x cross multiply

30/12 = 12x/12 isolate the variable

2.5 = x

The unit rate is 2.5:1 or $\frac{5}{2}$ :1

I hope this helps!!!

5 0

3 years ago

X+4-3x=4+12x qual é o calculo e o resultado dessa operação

nikitadnepr [17]

No estoy completamente seguro de lo que exactamente hay que hacer aquí, así que voy a asumir que necesita para ser resuelto, por lo que la respuesta es x = 0 y me dieron esto mediante el uso de cálculos matemáticos simples en primer lugar simplificado, reordenado el Términos, combinado los términos similares que incluyeron x + -3x = -2x 4 + -2x = 4 + 12x entonces i añadió -4 a cada lado y así sucesivamente lo explicaría todo pero su mucho lol

6 0

4 years ago

Data from the Centers for Disease Control and Prevention indicate that weights of American adults in 2005 had a mean of 167 poun

sesenic [268]

Answer:

92.65% probability that the total weight in a random sample of 47 American adults exceeds 7500 pounds in 2005.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .