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
Anvisha [2.4K]
3 years ago
7

Nikki used the calculations shown to determine whether a carton of 12 eggs or a carton of 18 eggs was the better buy. A carton o

f 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39. Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg The 12-egg carton has the lower unit cost, so it is the better buy. What was her first error?
Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0

Given :

A carton of 12 eggs or a carton of 18 eggs was the better buy. A carton of 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39. Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg The 12-egg carton has the lower unit cost, so it is the better buy.

To Find :

What was her first error.

Solution :

Her first error is to find Unit price of egg in each carton.

To find, unit price we should divide total amount by number of units :

Unit price for carton of 12 eggs, $ (2.39)/12 = $0.199 .

Hence, this is the required solution.

You might be interested in
Which expression is m times m times m times m times m rewritten in exponential form? m Superscript 5 5 m 5 Superscript m m 5.
sukhopar [10]

The expression which is equal to the m times, m times, m times, m times, m rewritten in exponential form as,

m^5

<h3>What is the exponent or power?</h3>

The exponent or power of a number represent the multiplication of the that number to the power times.

Let suppose a number 2 has the power 2. Then it will be equal to,

2^2=2\times2

Similarly, 3 times of number 2 equal to the number 2 with exponent 3.

2\times2\times2=2^3

The expression is m times, m times, m times, m times, m. It can be written as,

m\times m\times m\times m\times m\\

The number m is total 5 time multiply by itself. Thus, the exponential form of the above equation is,

m^5

The expression which is equal to the m times, m times, m times, m times, m rewritten in exponential form as,

m^5

Learn more about the exponents power here;

brainly.com/question/18324331

5 0
2 years ago
Find the angle between the given vectors to the nearest tenth of a degree. u = (8, 4), v = (9, -9)
Usimov [2.4K]

Answer:

<em>71.6 degrees </em>

Step-by-step explanation:

The formula for calculating the angle between two vectors is expressed as;

u.v = |u||v|cos theta

u.v = (8, 4).(9, -9)

u.v = 8(9)+4(-9)

u.v = 72-36

u.v = 36

|u| = √8²+4²

|u| = √64+16

|u| = √80

|v| = √9²+(-9)²

|v| = √81+81

|v| = √162

36 = √80*√162 cos theta

36 = √12960 cos theta

36 = 113.84 cos theta

cos theta = 36/113.84

cos theta = 36/113.84

cos theta = 0.3162

theta = arccos (0.3162)

<em>theta = 71.6 degrees </em>

<em>Hence the angle between the given vectors is 71.6 degrees </em>

7 0
3 years ago
Read 2 more answers
Simply<br> tan 45°. sin 30° - cot 45°/sec 60°​
dusya [7]

If we want to write the given four numbers in another form, we can write it like this;

tan45=sin45/cos45=1

sin30=sin(\frac{\pi }{2}-60 )=cos60=\frac{1}{2}

cot45=cos45/sin45=1

sec60=1/cos60=\frac{1}{1/2} =2

Now let's rewrite the given expression and get the result.

(tan45.sin30)-(cot45/sec60)=(1.\frac{1}{2})-(\frac{1}{2} )=0

5 0
1 year ago
Read 2 more answers
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER. Find the values of
soldier1979 [14.2K]

Step-by-step explanation:

I am not sure this is a square.

this could be a rectangle.

to be safe, I am following that path.

in a rectangle opposite sides are of equal length.

that means

y - 1 = 2y - 7

y = 2y - 6

0 = y - 6

y = 6

3x - 4 = 3y - 13

3x - 4 = 3×6 - 13

3x - 4 = 18 - 13 = 5

3x = 9

x = 3

as it turns out, it is a square, so we could have used every side expression to be equal with every other side expression, but better safe than sorry ...

5 0
2 years ago
Need help!! How do I figure out the question.
Natali5045456 [20]

Answer:

its the second one lol its just asking you to pick the one less than a and a is 0.11 so it would be 0.0019

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Which values represent the dependent variable? (2,3) (2,-2) (-4,-2) (-2,2) A. {–4, –2, 2} B. {–4, 2, 3} C. {–4, –2, 3} D. {–2, 2
    9·1 answer
  • A scale drawing for the floor of a rectangular office shows the floor to be 33 feet long and 24 feet wide. The business wants to
    13·1 answer
  • Emily makes 250 grams of snacks mixture. 25 percent banana chips and the rest of peanuts. How many gram peanuts does she used?
    9·2 answers
  • Marvin says that all rhombuses are squares. Aretha says that all squares are rhombuses. who is correct?
    15·1 answer
  • An animal shelter spends $3.50 per day to care for each cat and $5.50 per day to care for each dog. London noticed that the shel
    8·1 answer
  • If f(x)=x^2+4x-12. find f(2)
    15·1 answer
  • Help asapppp porfas
    14·1 answer
  • if a student is selected at random find the probability the student is a junior round to the nearest hole percent
    8·1 answer
  • What is 95/18 as a decimal?
    14·2 answers
  • Look at the table on texts assigned to students. A 4-column table with 3 rows titled texts assigned to students. The first colum
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!