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3 years ago

I need help with this math qustoin 2(2+455×330)÷3×2 and anyone bored

2 answers:

6 0

Solve what is in the parenthesis first. Then multiply that by 2 then divide that by 3 then multiply that by 2. know your order of operations.

yawa3891 [41]3 years ago

4 0

2(2+455×330)÷3×2

= 200202.667

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What is two plus two

irinina [24]

Four 1+1+1+1=4 1+1=2 2+2=4!!!!!!

5 0

3 years ago

The weights of the fish in a certain lake are normally distributed with a mean of 11 lb and a standard deviation of 6. if 4 fish

Alexus [3.1K]

Since the sample standard deviation is now known, we use the z-score test. The formula is given as:

z= (X – μ) / (s / sqrt(n))

Where,

X = sample mean = 8.6 lb to 14.6 lb

μ = population mean = 11 lb

s = population standard deviation = 6

n = sample size = 4

1st: Calculating for z when x = 8.6 lb

z = (8.6 – 11) / (6 / sqrt4)

z = - 0.8

Using the standard distribution table for z:

Probability (x = 8.6 lb) = 0.2119

2nd: Calculating for z when x = 14.6 lb

z = (14.6 – 11) / (6 / sqrt4)

z = 1.2

Using the standard distribution table for z:

Probability (x = 14.6 lb) = 0.8849

Therefore the probability that the mean weight will be between 8.6 and 14.6 lb:

Probability (8.6 ≤ x ≤ 14.6 ) = 0.8849 - 0.2119

Probability (8.6 ≤ x ≤ 14.6 ) = 0.673 (ANSWER)

8 0

3 years ago

What are three equivalent ratios the fourth third

Ghella [55]

Three equivalent ratios are: 8/6, 12/9, 16/12

6 0

3 years ago

One week Chuck bought 2 packs of chicken and 3 packs of beef for $42.50. The next week he bought 5 packs of chicken and 6 packs

guajiro [1.7K]

Answer:

Each pack of chicken costs $8 and each pack of beef costs $9.24.

Step-by-step explanation:

This question can be solved using a system of equations:

I am going to say that:

x is the cost of each pack of chicken.

y is the cost of each pack of beef.

2 packs of chicken and 3 packs of beef for $42.50.

This means that $2x + 3y = 42.50$

5 packs of chicken and 6 packs of beef for $94.25.

This means that $5x + 6y = 94.25$

We have to solve the following system:

$2x + 3y = 42.50$

$5x + 6y = 94.25$

I will use the addition method, multiplying the first equation by -2, and adding to the second

$-4x - 6y = -85$

$5x + 6y = 94.25$

-4x + 5x - 6y + 6y = -85 + 94.24

x = 9.24.

And

$2x + 3y = 42.50$

$3y = 42.50 - 2x$

$y = \frac{42.50 - 2*9.24}{3}$

$y = 8$

Each pack of chicken costs $8 and each pack of beef costs $9.24.

4 0

3 years ago

6.2 + 0.4x = 8.05 as a decimal . do not round

KengaRu [80]

$\: \: \: \:$

$\pink{x = 4.625} \\ \\ or \: in \: alternate \: \: form \\ \\ \pink{x = \frac{37}{8} }$

Step-by-step explanation:

$6.2 + 0.4x = 8.05$

move the constant to the right

$0.4x = 8.05 - 6.2$

calculate

$0.4x = 1.85$

divide both sides

$\pink{x = 4.625} \\ \\ in \: \: alternate \: \: form \\ \\ \pink{x = \frac{37}{8} }$

<h2>hope it helps</h2>

4 0

2 years ago

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