1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Licemer1 [7]
3 years ago
7

Two identical blue boxes together weigh the same as three identical red boxes together. Each red box weighs 15.2 ounces. How muc

h does one blue box weigh in ounces?
Mathematics
2 answers:
Westkost [7]3 years ago
8 0

Answer:

Each blue box weighs 22.8 ounces

Step-by-step explanation:

dangina [55]3 years ago
8 0

Answer:

22.8 ounces

Step-by-step explanation:

Since one red box weighs 15.2 ounces, three red boxes weigh 45.6 ounces. This is the same as two blue boxes, so we have the equation 2b=45.6 where b represents the weight of the blue box. Solving the equation by multiplying both sides by 1/2 gives us 22.8 ounces.

You might be interested in
10.
Kay [80]

Answer:

\frac{(82)(2.4)^2}{104.139} \leq \sigma^2 \leq \frac{(82)(2.4)^2}{62.132}

4.535 \leq \sigma^2 \leq 7.602

Now we just take square root on both sides of the interval and we got:

2.2 \leq \sigma \leq 2.8

And the best option would be:

A.  2.2 < σ < 2.8

Step-by-step explanation:

Information provided

\bar X=32.1 represent the sample mean

\mu population mean  

s=2.4 represent the sample standard deviation

n=83 represent the sample size  

Confidence interval

The confidence interval for the population variance is given by the following formula:

\frac{(n-1)s^2}{\chi^2_{\alpha/2}} \leq \sigma^2 \leq \frac{(n-1)s^2}{\chi^2_{1-\alpha/2}}

The degrees of freedom are given by:

df=n-1=83-1=82

The Confidence is given by 0.90 or 90%, the value of \alpha=0.1 and \alpha/2 =0.05, the critical values for this case are:

\chi^2_{\alpha/2}=62.132

\chi^2_{1- \alpha/2}=104.139

And replacing into the formula for the interval we got:

\frac{(82)(2.4)^2}{104.139} \leq \sigma^2 \leq \frac{(82)(2.4)^2}{62.132}

4.535 \leq \sigma^2 \leq 7.602

Now we just take square root on both sides of the interval and we got:

2.2 \leq \sigma \leq 2.8

And the best option would be:

A.  2.2 < σ < 2.8

3 0
4 years ago
Question:
Minchanka [31]

Answer:

18 feet

Step-by-step explanation:

9/12 = 0.75

24 x 0.75 = 18

8 0
4 years ago
Read 2 more answers
Find the domain and range of f(x)=|x|+ cos x<br>I need help ASAP
Firdavs [7]

Answer:

Domain All real x.

Range f(x) >= 1.

Step-by-step explanation:

The domain is all real numbers.

|x| is always positive.

At x = 0:

f(x) = |0| + cos 0

= 1  which is the minimum value.

3 0
3 years ago
7. The price of a dress was * 500. In December 2006
lyudmila [28]

$500 + $500*10% = $550

$550-$550*10% = $495

5 0
3 years ago
The sum of one and the product of one and a number x
Annette [7]

1 + 1x

OR

1 + x

They mean the same thing! Hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • Verdadero o Falso:
    8·1 answer
  • The normal amount of rainfall for July in apple valley is 11/24 feet so far this July only 3/10 of the normal amount has fallen.
    13·1 answer
  • 3(y-10)+1=x(y-8) it's an equation
    5·1 answer
  • Can you help me solve and show at least 3 steps please
    5·1 answer
  • “Which dot plot presents this data”
    13·1 answer
  • Please hurry due today
    11·1 answer
  • Which describes the slope of the line that passes through the points (2,5) and (-4,5)?
    8·2 answers
  • Gerri's garden is 1,270 centimeters around the edges. How many meters of fencing material does she need to enclose her garden?​
    15·1 answer
  • 2. Find the coefficient of y^2 in the expression (1-2y)^4
    6·1 answer
  • Use slope to determine if lines AB and CD are parallel, perpendicular, or neither 7. 4(5.-8), B(-2,-10), C(-6, -13). D(-2. 1)m(A
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!