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
lawyer [7]
3 years ago
15

Matt can buy an 8-ounce jar of salsa for $2.79 or a 15-ounce jar of salsa for $5.54. Which jar has the best unit rate?

Mathematics
1 answer:
katrin [286]3 years ago
3 0

Answer:

15 ounce

Step-by-step explanation:

a

You might be interested in
Ron had 20 apples. He used 2/5 of the apples to make pies. How many apples did Ron use for pies?
Mnenie [13.5K]
1/5 of 20 is 4.

2/5 of 20 is 8.

Therefore, Ron used 8 apples to make his pies.
4 0
3 years ago
Read 2 more answers
In an examination of purchasing patterns of shoppers, a sample of 16 shoppers revealed that they spent, on average, $54 per hour
Lesechka [4]

Answer:

54-1.64\frac{21}{\sqrt{16}}=45.39    

54 +1.64\frac{21}{\sqrt{16}}=62.61    

So on this case the 90% confidence interval would be given by (45.39;62.61)    

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

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".

\bar X=54 represent the sample mean  

\mu population mean (variable of interest)

\sigma=21 represent the sample standard deviation

n=16 represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

Since the Confidence is 0.90 or 90%, the value of \alpha=1-0.9=0.1 and \alpha/2 =0.05, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that z_{\alpha/2}=1.64

Now we have everything in order to replace into formula (1):

54-1.64\frac{21}{\sqrt{16}}=45.39    

54 +1.64\frac{21}{\sqrt{16}}=62.61    

So on this case the 90% confidence interval would be given by (45.39;62.61)    

4 0
3 years ago
Suponhamos que temos x casos confirmados de coronavírus e y casos suspeitos. A - Se triplicar os casos confirmados e cair a meta
aleksandr82 [10.1K]

Answer:

[3x + (y/2)]

Step-by-step explanation:

English Translation

Suppose we have x confirmed cases of coronavirus and y suspected cases. A - If the confirmed cases triple and half of the suspects fall, we will have the following expression to represent the total number of cases:

Solution

Number of confirmed cases = x

Number of suspected cases = y

Number of confirmed cases triples and becomes 3x

Half of the suspected cases fall and becomes (y/2)

Total number of cases then becomes

[3x + (y/2)]

In Portugese/Em português

Número de casos confirmados = x

Número de casos suspeitos = y

O número de casos confirmados triplica e se torna 3x

Metade dos casos suspeitos cai e se torna (y / 2)

O número total de casos passa a ser

[3x + (y / 2)]

Hope this Helps!!!

Espero que isto ajude!!!

8 0
3 years ago
The tourists went in the first hour with a speed of 3.5km/h to the bus station, realizing that they would arrive 1 hour late at
mestny [16]
The answer should be 4.25km
7 0
3 years ago
What is the sum of 15 – 6i and –2 + 9i? 13 + 3i 17 + 3i 24 – 147i 24 + 147i
Delicious77 [7]

13 + 3i

15 - 6i - 2 + 9i  → Sum

collect like terms

(15 - 2) + ( - 6i + 9i) =13 + 3i


7 0
3 years ago
Read 2 more answers
Other questions:
  • If 0° < θ< 90°, θ is a/an what angle?​
    14·1 answer
  • Mrs. Aiken bought some peaches at $1.49 per pound and some blueberries at $1.99 per pound to use in fruit salad she is making fo
    15·1 answer
  • Kyle volunteered 5.5 hours at the library this week. He needs to volunteer a total of 12 hours. Which equation can be used to fi
    7·1 answer
  • Find the difference in numbers 1-6​
    14·1 answer
  • 6. A study recorded the number of baskets scored each game by four basketball players. The MAD from this data is shown below. Wh
    6·1 answer
  • PLS PLS PLS HELP I WILL MARK YOU BRAINLIESTTT!!!!!!!!!!!!!!!!!
    12·2 answers
  • There were 306 students in the cafeteria. After some went outside, there were 249 students left in the cafeteria. How many stude
    8·1 answer
  • 3+(-2)-(-3)-(5)+(-1)-(-7)=
    11·1 answer
  • The basketball team spends 20 minutes running laps and at least 15 minutes discussing plays. Practice lasts one hour and 45 minu
    5·1 answer
  • Can someone help??? I'm so confused with this. i don't know what to do
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!