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
lora16 [44]
3 years ago
15

What is the better buy?

Mathematics
2 answers:
asambeis [7]3 years ago
8 0
Simply put 12 batteries for 14.76 because 4.80x4=19.2 so if you buy more 3 packs it’s gonna cost you more
White raven [17]3 years ago
4 0

Answer: Option B is the cheaper deal (the 12 batteries for $14.76)

===========================================================

Explanation:

For the first deal we can say

3 batteries = 4.80 dollars

3/3 batteries = 4.80/3 dollars .... divide both sides by 3

1 battery = 1.60 dollars

The unit price for the first deal is $1.60 per battery.

----------------------------------

For the second deal we could say

12 batteries = 14.76 dollars

12/12 batteries = 14.76/12 dollars .... divide both sides by 12

1 battery = 1.23 dollars

The unit price for the first deal is $1.23 per battery.

This is the cheaper deal.

----------------------------------

So in short, you're dividing the total cost over the number of items to get the unit price.

You might be interested in
Can someone please help me with this expression?
Anton [14]

the answer to this question is

1220703125


7 0
3 years ago
The president of the student council wants to survey the student population about parking. She decides to use a random number ta
Advocard [28]

Answer:

0759, 1019

Step-by-step explanation:

Edge 2020/2021

3 0
3 years ago
Read 2 more answers
Find derivative problem<br> Find B’(6)
dalvyx [7]

Answer:

B^\prime(6) \approx -28.17

Step-by-step explanation:

We have:

\displaystyle B(t)=24.6\sin(\frac{\pi t}{10})(8-t)

And we want to find B’(6).

So, we will need to find B(t) first. To do so, we will take the derivative of both sides with respect to x. Hence:

\displaystyle B^\prime(t)=\frac{d}{dt}[24.6\sin(\frac{\pi t}{10})(8-t)]

We can move the constant outside:

\displaystyle B^\prime(t)=24.6\frac{d}{dt}[\sin(\frac{\pi t}{10})(8-t)]

Now, we will utilize the product rule. The product rule is:

(uv)^\prime=u^\prime v+u v^\prime

We will let:

\displaystyle u=\sin(\frac{\pi t}{10})\text{ and } \\ \\ v=8-t

Then:

\displaystyle u^\prime=\frac{\pi}{10}\cos(\frac{\pi t}{10})\text{ and } \\ \\ v^\prime= -1

(The derivative of u was determined using the chain rule.)

Then it follows that:

\displaystyle \begin{aligned} B^\prime(t)&=24.6\frac{d}{dt}[\sin(\frac{\pi t}{10})(8-t)] \\ \\ &=24.6[(\frac{\pi}{10}\cos(\frac{\pi t}{10}))(8-t) - \sin(\frac{\pi t}{10})] \end{aligned}

Therefore:

\displaystyle B^\prime(6) =24.6[(\frac{\pi}{10}\cos(\frac{\pi (6)}{10}))(8-(6))- \sin(\frac{\pi (6)}{10})]

By simplification:

\displaystyle B^\prime(6)=24.6 [\frac{\pi}{10}\cos(\frac{3\pi}{5})(2)-\sin(\frac{3\pi}{5})] \approx -28.17

So, the slope of the tangent line to the point (6, B(6)) is -28.17.

5 0
3 years ago
The area of the rectangle below is<br> sq. units.<br> Help me pls :(
Lisa [10]

Answer:

D

Step-by-step explanation:

Hey There!

To find the area of a rectangle we do length times width

17 is the width and 4 is the length

so area is equal to 17x4

17x4=68 so your answer would be D

8 0
3 years ago
Read 2 more answers
What is the solution of 5 x + 1] + 6 = 21?
Mice21 [21]

Answer:

x = -4 or x = 2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • I reached into my pocket and found that I have only dimes n nickels. I have 2.00. I have 11 coins. How many dimes do I have?
    6·1 answer
  • I need help with the worksheet
    9·2 answers
  • A deck of cards contains RED cards numbered 1,2,3 and BLUE cards numbered 1,2,3,4,5,6. Let R be the event of drawing a red card,
    12·1 answer
  • Can someone please help me? :)<br> Math, 8th grade, K12
    15·1 answer
  • Solve 5(2y+1)=4y+10. this is for algebra 1
    5·2 answers
  • 3x subtracted from 15x + x power of 2​
    9·1 answer
  • 1/6 divided by 4 plzzzzz
    12·2 answers
  • F
    13·2 answers
  • Two tents are needed for every
    8·2 answers
  • Find the value of x. Then find the angle measures of the polygon.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!