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
Stolb23 [73]
3 years ago
9

Ahmad started cooking at :423 pm and finished at :552 pm. how long did it take him? give your answer in minutes. what is the ans

wer
Mathematics
1 answer:
vazorg [7]3 years ago
6 0
60-23 = 37
37+52= 89
89 minutes
You might be interested in
Can someone HELP ME ON NUMBER 16 IM NOT SURE IM RIGHT!!!
nikitadnepr [17]

Answer:

true im not sure tho but trust me

Step-by-step explanation:

7 0
2 years ago
Solve the equation <br> 4^(x+5)=16 (x-3)
Harrizon [31]
4 ⁽ˣ⁺⁵⁾ = 16 (x-3)

Simplify.

4x + 20 = 16x - 48

Subtract 16x from both sides, as well as subtracting 20 from both sides.

4x - 16x = -48 - 20

Add like terms.

-12x = -68

Divide both sides by -12

x = 5 2/3

~Hope I helped!~
8 0
2 years ago
I will mark brainiest:
Alla [95]

Answer:

negative

Step-by-step explanation:

because a positive multiplied by a negative number equals a negative number.

7 0
3 years ago
The Highway Safety Department wants to study the driving habits of individuals. A sample of 32 cars traveling on the highway rev
GarryVolchara [31]

Answer:

n=126

Step-by-step explanation:

Data given and previous concepts

\bar X=60 represent the sample mean

s=11 represent the sample deviation

n=32 represent the sample size

Confidence =0.95 or 95%

\alpha =1-0.95=0.05 represent the significance level

ME= 2 represent the margin of error required

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Assuming the X follows a normal distribution

X \sim N(\mu, \sigma)

Solution to the problem

Since we don't have the population deviation. We know that the margin of error for a confidence interval is given by:

Me=t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

The next step would be find the value of \t_{\alpha/2}, \alpha=1-0.95=0.05 and \alpha/2=0.025. The degrees of freedom are given by:

df=n-1=32-1=31

Using the normal standard table, excel or a calculator we see that:

t_{\alpha/2}=2.04

And the code in excel is this one:  "=T.INV(1-0.025,31)"

If we solve for n from formula (1) we got:

\sqrt{n}=\frac{t_{\alpha/2} s}{Me}

n=(\frac{t_{\alpha/2} s}{Me})^2

And we have everything to replace into the formula:

n=(\frac{2.04(11)}{2})^2 =125.88

And if we round up the answer we see that the value of n to ensure the margin of error required \pm=2 miles is n=126.

3 0
3 years ago
In George’s neighborhood there are 33 cats and 33 dogs roaming free.What percent of the animals roaming free are dogs?
Alexxx [7]
First, we'll figure out how many animals there are in total by adding up the cats and the dogs. In this case, we have 33+33=66 total animals. Then we need to figure out what fraction of these 66 animals are dogs:
\frac{33}{60}=\frac{1}{2}

So half of the animals are dogs. To write that as a percent, we need the fraction to be over 100, so:
\frac{1}{2}=\frac{50}{100}

50% of the animals are dogs.
6 0
3 years ago
Other questions:
  • Jack and Jim went biking. Jack biked for 5 1/3 hours with average speed 12 1/2 miles per hour. Jim traveled exactly 1 1/5 as far
    12·1 answer
  • 4 inches away from a playground the scale of the map is 1 inch represents 5.25 meters how far apart are the actual pond and play
    5·1 answer
  • Solve for x: 3x − 2(6 − x) = 7x + 2(5 + x) − 6
    13·1 answer
  • 10) PLS HELP ASAP!!!<br><br> 10 + POINTS AND BRAINLIEST
    6·2 answers
  • 24 times *blank* =6<br><br> Someone please answer this I need help
    10·1 answer
  • Can you help me with this problem I'm doing school virtually and I don't know what to do on this.
    11·1 answer
  • Help please! I’ll give brainliest!
    10·2 answers
  • Find the measure of ∠AED for m∠BEC = 118
    7·1 answer
  • I need help, please answer this
    11·1 answer
  • Megan is in charge of creating a five-digit code to lock and unlock a secure room. She can use any digit from 0 through 9, and s
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!