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
balu736 [363]
3 years ago
12

Which one????????????

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
6 0
Which what ? Put the question and will help you
You might be interested in
GIVING BRAINLIEST Write a proportion that could be used to solve for each variable. Then solve. 7 pencils for $1.68 p pencils fo
Evgesh-ka [11]

The proportion that could be used to solve for the variable is:

\frac{7}{1.68}=\frac{p}{2.88} ; p = 12 ⇒ b

Step-by-step explanation:

Direct proportion means that two (or more) quantities increase or decrease in the same ratio

  • y = k x is the equation of direct proportion, where k is the constant of proportionality
  • \frac{y_{1}}{x_{1}}=\frac{y_{2}}{x_{2}}=k is the another way to write a proportion

The number of pencils and the cost of them is increased together or decreased together

∴ The number of the pencils and their costs are in direct proportion

- By using the 2nd rule above

∵ The cost of the 7 pencils is $1.68

∵ The cost of p pencils is $2.88

∴ \frac{7}{1.68}=\frac{p}{2.88}

The proportion that could be used to solve for the variable is: \frac{7}{1.68}=\frac{p}{2.88}

∵ \frac{7}{1.68}=\frac{p}{2.88}

- By using cross multiplication

∴ p × 1.68 = 7 × 2.88

∴ 1.68 p = 20.16

- Divide both sides by 1.68

∴ p = 12

The value of variable p is 12

Learn more:

You can learn more about the proportion in brainly.com/question/10708697

#LearnwithBrainly

8 0
3 years ago
Please help asap for a math test
Kruka [31]

Answer:

negative    

positive

negative

positive

Step-by-step explanation:

-0.25

1/10

-0.2

1/2

5 0
2 years ago
Please help me solve this problem
Stells [14]

Answer:

$180

Step-by-step explanation:

To solve, we can set up a proportion and solve.

You earn $45 for 7.5 hours of work, and you earn $ x for 30 hours of work

45/7.5=x/30

Cross multiply

45*30=7.5*x

1350=7.5x

To solve for x, we need to get x by itself. It is being multiplied by 7.5. To undo this, divide both sides by 7.5

1350/7.5=7.5x/7.5

180=x

So, for 30 hours of work, you would earn $180

5 0
3 years ago
Read 2 more answers
A school has 2 computer labs. Each lab has 30 computers. A total of
Korolek [52]

Answer:

(2*30)-6

Step-by-step explanation:

8 0
3 years ago
Can someone please answer. There is a picture. There is only one problem. Thank you so much!!!
kvasek [131]
Hello,

Answer D

x²/25+y²/16=1

5 0
3 years ago
Other questions:
  • Which of the following is a third root of the given complex number? 27(cos(pi/5)+isin(pi/5))
    11·1 answer
  • 2x + 5(3y * 8x) - 2 = 2x + 4y - 3
    15·1 answer
  • What is the total area of a rectangular prism with a height of 10 feet, a width of 6 feet, and a thickness of 4 feet? A. 240 ft2
    10·2 answers
  • Find the denominator that names a fraction equivalent to 3/2
    9·1 answer
  • Help me in this question please
    10·1 answer
  • Write the equation of the line, in slope-intercept form, with the
    7·1 answer
  • 2x/ 4x4 - 2x<br>simplify ​
    14·2 answers
  • A saleswomen is paid $10 per hour and $6 for each sale she makes. She wants to earn more than $150 in a 8-hour work period.
    7·1 answer
  • Kate had 50 thousands-blocks in her package of base-ten blocks. How many ten thousands-blocks does that equal?
    7·1 answer
  • The expression (x⁴)(x-12) is equivelent to x^n. what is the value to n?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!