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
worty [1.4K]
3 years ago
15

I need help please with number 12 please I’m begging on my knees for help☹️

Mathematics
2 answers:
Taya2010 [7]3 years ago
3 0

Answer: i did the math and i think it's the best bet bc i got 75 cents and the rest is highier


Step-by-step explanation:


skelet666 [1.2K]3 years ago
3 0

Answer:

<em>The best buy by unit price is the 16-oz can whose unit price is $0.07/oz.</em>

Step-by-step explanation:

The problem speaks of three sizes of cans, 12 oz, 16 oz, and 24 oz.

The prices of the three sizes of the cans are unknown. We are looking for the best unit cost, or dollars per oz.

Let x = unit cost of the 12-oz can.

Let y = unit cost of the 16-oz can.

Let z = unit cost of the 24-oz can.

The cost of the 12-oz can is 12x.

The cost of the 16-oz can is 16y.

The cost of the 24-oz can is 24z.

The 12-oz can costs $0.16 less than the 16-oz can.

12x = 16y - 0.16

The 16-oz can costs $0.68 less than the 24-oz can.

16y = 24z - 0.68

The unit price of the 24-oz can is $0.005 less than the unit price of the 12-oz can.

z = x - 0.005

There are three equations written in bold above. The form a system of equations in three unknowns. Each unknown is a unit price.

Replace z of the second equation with the third equation.

16y = 24(x - 0.005) - 0.68

16y = 24x - 0.12 - 0.68

16y = 24x - 0.8

Subtract 16y from both sides and add 0.8 to both sides. Then switch sides. You get

24x - 16y = 0.8    (Eq. 1)

Now take the original first equation in bold above. Subtract 12x from both sides. Add 0.16 to both sides. Switch sides. You get.

-12x + 16y = 0.16  (Eq. 2)

Add Eq. 1 and Eq. 2 to eliminate y.

12x = 0.96

x = 0.08

The unit price of the 12-oz can is $0.08/oz.

A 12-oz can costs 12x = $0.96.

12x = 16y - 0.16

0.96 = 16y - 0.16

1.12 = 16y

y = 1.12/16 = 0.07

The unit price of the 16-oz can is $0.07/oz.

z = x - 0.005

z = 0.08 - 0.005

z = 0.075

The unit price of the 24-oz can is $0.075/oz.

The unit prices of the 12-oz, 16-oz, and 24-oz cans are $0.08/oz, $0.07/oz, and $0.075/oz, respectively.

The best buy by unit price is the 16-oz can whose unit price is $0.07/oz.

You might be interested in
Sin5A-sin7A-sin4A+sin8A/cos4A-cos5A-cos8A +cos7A
Anna11 [10]
Sin1A/-cos1A=iddkkkk
5 0
3 years ago
The shorter leg of a right triangle is two less than the hypotenuse. The longer leg is one less than the hypotenuse. Find all th
Marina86 [1]

Answer:

x = 5

Step-by-step explanation:

using the Pythagorean theorem:

(x-1)² + (x-2)² = x²

x²-2x+1 + x²-4x+4 = x²

reduce:

2x²-6x+5 = x²

subtract x² from each side:

x²-6x+5 = 0

(x-1)(x-5) = 0

x=1 but because shorter leg would be 0, a triangle would be impossible.

x=5

5 0
2 years ago
Please help me anyone help ?!!!!!!
Andre45 [30]
Its c the line meets right a -3
6 0
3 years ago
Least to greastest .
pishuonlain [190]

Answer:

these are fromeast to greatest

9^10

9^5

1^3/4

1^3/20

6 0
3 years ago
Read 2 more answers
Write the equation in slope-intercept form of the line that has a slope of -3 and contains the point (4, -5).
Anvisha [2.4K]
Y-(-5) = -3(x-4)
y+5= -3x +12
y= -3x +7
5 0
3 years ago
Other questions:
  • HELP ME PLEASE!! ASAP!!
    7·1 answer
  • What was Bassima’s error?
    9·2 answers
  • -3x+2&lt;8 answer this equation
    5·2 answers
  • ASAP! The sum of three consecutive integers is two hundred thirty-seven. Determine the three integers.
    7·2 answers
  • The length of the radius of a bicycle wheel is 14 inches. Which of the following is closest to the circumference of the wheel? A
    13·1 answer
  • Complete the work to simplify the expression (-2d^5)^4
    9·2 answers
  • A rule in a relation in which each input is paired with, or assigned to, exactly one output.
    14·1 answer
  • 1/?<br> Which number produces a rational number when Multiplied 1/5
    7·1 answer
  • Solve this equations 3x+4x-8=6(x-3)+x
    7·1 answer
  • Really need help with 11 and 12 just started learning this today and I don't quite understand it would really appreciate it
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!