All categories

3 years ago

For field day, Mr. Cotman has a total of 49 water balloons. He gives each group 7 balloons.

Mathematics

1 answer:

vampirchik [111]3 years ago

7 0

Answer:

Step-by-step explanation:

49(waterballoons) divided by 7=7groups

You might be interested in

Amanufacturer of potato chips would like to know whether its bag filling machine works correctly at the 433 gram setting. It is

ankoles [38]

Answer:

There is not enough evidence to support the claim that the bags are under filled.

Step-by-step explanation:

Given :

Population mean, μ = 433

Sample size, n = 26

xbar = 427

Variance, s² = 324 ; Standard deviation, s = √324 = 18

The hypothesis :

H0 : μ = 433

H0 : μ < 433

The test statistic :

(xbar - μ) ÷ (s/√(n))

(427 - 433) / (18 / √26)

-6 / 3.5300904

T = -1.70

The Pvalue :

df = 26-1 = 25 ; α = 0.05

Pvalue = 0.0508

Since Pvalue > α ; WE fail to reject the Null and conclude that there is not enough evidence to support the claim that the bags are underfilled

3 0

3 years ago

As an estimation we are told 5 miles is 8 km. <br> Convert 30 miles to km.

sergeinik [125]

Answer:

48km

5miles = 8km

×6 = ×6

30miles= 48km

6 0

3 years ago

What is equavilent to (10x+7r-r^(2))+(-6r^(2)-18+5r)

mote1985 [20]

Answer:

−7r^(2)+12r+10x−18

Step-by-step explanation:

Grab the original equation: 10x+7r−r^(2)−6r^(2)−18+5r

For subtraction bits, treat them as negatives: 10x+7r+−r^(2)+−6r^(2)+−18+5r

Combine like terms: (−r^2+−6r^2)+(7r+5r)+(10x)+(−18)

Simplify that, and you get your final answer: −7r^(2)+12r+10x+−18

6 0

3 years ago

Jody paid $1.60 for each box 35 beads she has 1,400 beads altogether

Tcecarenko [31]

I hope that I have the answer to your question.

1400/35 = 40 boxes of beads

40*1,60 = 64$

Jolly paid 64$ for 1400 beads (40 boxes).

4 0

3 years ago

The Boffo Product Company sells a waffle iron on which they have done product testing. They have determined that the amount of t

den301095 [7]

Answer:

They should warranty the product for 7 years if they want no more than 6.7% of the waffle irons to fail within that time.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

The average waffle iron lasts for 12 years and one standard deviation is 8 months.

Measuring the time in months, we have that $\mu = 12*8 = 96$ and $\sigma = 8$