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
oksano4ka [1.4K]
3 years ago
15

Gretchen can buy 17.4 ounces of Brand A toothpaste for $5.22, or she can buy 26.6 ounces of Brand B toothpaste for $6.65. Which

of the following explains which is the better deal?
A. Brand A is the better deal, because it costs $0.08 less per ounce than Brand B.
B. Brand A is the better deal, because it costs $0.05 less per ounce than Brand B.
C. Brand B is the better deal, because it costs $0.08 less per ounce than Brand A.
D. Brand B is the better deal, because it costs $0.05 less per ounce than Brand A.
Mathematics
2 answers:
taurus [48]3 years ago
8 0

We need to calculate the unit price of both toothpaste  
Brand A is: $5.22 / 17.4 = $0.30 per ounce 
Brand B is: $6.65 / 26.6 = $0.25 per ounce  
Then Brand B is the better deal, because it cost $0.05 less per ounce than Brand A
konstantin123 [22]3 years ago
3 0
Price of Brand A toothpaste for 17.4 ounces = <span>$5.22
</span>Price of Brand A toothpaste for 1 ounce = $5.22/17.4 = 0.3
Price of Brand B toothpaste for 26.6 ounces = $6.65
Price of Brand B toothpaste for 1 ounces = $6.65/26.6 = 0.25
So, if we see the price for per ounce of brand A and B, price of Brand B per ounce is less than brand A.
and if we find the difference between the prices of both = 0.3 - 0.25 = 0.05

Thus, the correct answer is "D", <span>Brand B is the better deal, because it costs $0.05 less per ounce than Brand A".</span>
You might be interested in
EASY I AM JUST DUMB!! WILL GIVE BRANLIEST!!! HELP ASAP!!!!
Darina [25.2K]

Answer:

I'm pretty sure it's D

Step-by-step explanation:

....

3 0
3 years ago
Read 2 more answers
What is 3/4 of 50 for a math assignment.
Burka [1]

Answer:

37 1/2

Step-by-step explanation:

multiply the two numbers if their is an “of” in the statement

7 0
3 years ago
Read 2 more answers
Suppose that your net income for the month is $1,500 and that your total expenses are $2,500
Aleks [24]

Answer:

You will need to double your net income in order to make a profit.

Step-by-step explanation:

1500 x 2 = 3000 - 2500 = 500 which is 500 dollars profit

6 0
3 years ago
Penelope is going to the carnival to ride the rides. It costs $20 to get into the
Dimas [21]

Answer:

35=0.5x+20

Step-by-step explanation:

y=mx+b

35= money you can spend

0.5= cost of each ride

x=number of rides you ride

20= price to enter

5 0
3 years ago
WILL GIVE BRAINLIEST IF CORRECT!!
vfiekz [6]

Answer:

\displaystyle y=-0.927x+13.63

Step-by-step explanation:

<u>Simple Linear Regression </u>

It a function that represents the relationship between two or more variables in a given data set. It uses the method of the least-squares regression line which minimizes the error between the estimate function and the real data.

Let's compute the best-fit line for the data

x=\{1,5,6,12,15\}

y=\{14,11,4,2,1\}

First, we find the sums

\displaystyle \sum x=1+5+6+12+15=39

\displaystyle \sum y=14+11+4+2+1=32

Then, we compute the averages values

\displaystyle \bar{x}=\frac{39}{5}=7.8

\displaystyle \bar{y}=\frac{32}{5}=6.4

We will also compute the sums of the cross-products and the sum of the squares

\displaystyle \sum xy=(1)(14)+(5)(11)+(6)(4)+(12)(2)+(15)(1)=137

\displaystyle \sum x^2=1^2+5^2+6^2+12^2+15^2=1+25+36+144+225

\displaystyle \sum x^2=431

We will compute Sxy and Sxx

\displaystyle S_{xy}=\sum xy-\frac{\sum x\ \sum y}{n}

\displaystyle S_{xy}=137-\frac{(39)(32)}{5}

\displaystyle S_{xy}=-117.6

\displaystyle S_{xx}=\sum x^2-\frac{(\sum x)^2}{n}

\displaystyle S_{xx}=431-\frac{39}{5}^2=126.8

The slope of the linear regression function is given by

\displaystyle m=\frac{S_{xy}}{S_{xx}}=\frac{-117.6}{126.8}=-0.927

The y-intercept ot the linear function is

\displaystyle b=\bar{y}-b\bar{x}=6.4-(-0.927)(7.8)

\displaystyle b=13.63

Thus the best-fit line is

\displaystyle y=-0.927x+13.63

The correct option is the last one

5 0
3 years ago
Other questions:
  • Tara is taller than Jeff. Jeff is 47 inches tall. Write an inequality that compares Tara's height in inches, t, to Jeff's height
    13·2 answers
  • The sanitation department calculated that last year each city resident produced approximately 1.643 × 103 pounds of garbage. The
    13·2 answers
  • A car travels 360.25 mi. It uses 13.1 gal of gas. How many miles per gallon of gas does the car travel?
    5·2 answers
  • What is the surface area? I can't figure it out...
    14·2 answers
  • What is the ratio for the ​
    15·1 answer
  • A rectangle is 6 feet long by 4 feet wide.
    7·1 answer
  • Please help me with this have a great day too also please pick all that are correct and not just one
    7·1 answer
  • The volume of this prism Is ___<br> cubic inches
    7·2 answers
  • Find x &amp; y I need this asap
    13·1 answer
  • 8 4/5 - 5 1/6 This is a subtraction problem
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!