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photoshop1234 [79]
2 years ago
7

Pedro simplified 4/7 5/8 his work is shown below identify where he made his error

Mathematics
1 answer:
motikmotik2 years ago
6 0
4/7 cannot be simplified anymore. 5/8 can't be simplified either.
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A holding tank containing 3000 gallons of oil is been at the rate of 130 gallon per hour of six hours and then filled at the rat
serious [3.7K]

Answer:

2520 gallons

Step-by-step explanation:

3000 gallons -780 gallons drained over 6 hours then add 300 gallons over three hours = 2520 gallons

8 0
3 years ago
A bottled water distributor wants to determine whether the mean amount of water contained in 1-gallon bottles purchased from a n
mash [69]

Answer:

We fail to reject H0; Hence, we conclude that there is no significant evidence that the mean amount of water per gallon is different from 1.0 gallon

Pvalue = - 2

(0.98626 ; 1.00174)

Since, 1.0 exist within the confidence interval, then we can conclude that mean amount of water per gallon is 1.0 gallon.

Step-by-step explanation:

H0 : μ= 1

H1 : μ < 1

The test statistic :

(xbar - μ) / (s / sqrt(n))

(0.994 - 1) / (0.03/sqrt(100))

-0.006 / 0.003

= - 2

The Pvalue :

Pvalue form Test statistic :

P(Z < - 2) = 0.02275

At α = 0.01

Pvalue > 0.01 ; Hence, we fail to reject H0.

The confidence interval :

Xbar ± Margin of error

Margin of Error = Zcritical * s/sqrt(n)

Zcritical at 99% confidence level = 2.58

Margin of Error = 2.58 * 0.03/sqrt(100) = 0.00774

Confidence interval :

0.994 ± 0.00774

Lower boundary = (0.994 - 0.00774) = 0.98626

Upper boundary = (0.994 + 0.00774) = 1.00174

(0.98626 ; 1.00174)

7 0
3 years ago
Please help me for number 1 and number 3
azamat
The middle is 2 :D hope this helps
8 0
3 years ago
A hat is originally priced at $28 is on sale for $15% off. What is the total cost of the hat if the tax is 6.75%?
vampirchik [111]
You do 28, which is the original cost, then you take that 15% off to do that you multiply 28×.15 and you get 4.2 and subtract that from original cost and you get 23.8 then to get the cost after tax you do 23.8×.0675 and you get 1.6 then you add that to 23.8 and get 25.4 dollars
5 0
3 years ago
What is the value of x in the equation 5x+3 - 4x?<br> O -3<br> O -1/3<br> O 1/3<br> O 3
Alina [70]
The answer would be 3
6 0
2 years ago
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