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
Jobisdone [24]
3 years ago
7

Jason bought 2/5 pounds of jellybeans for $5.00. How much would a whole pound of jellybeans cost?

Mathematics
1 answer:
aliina [53]3 years ago
7 0
300 jelly beans cost you x dollars.
if you divide 300 by x, you get the number of jelly beans per dollar.
now you are buying 1/2 a dollar's worth of jelly beans, so you will be getting 1/2 * 300 / x which is equal to 150 / x jelly beans.
the actual number of jelly beans you get is determined by x.
if x = 1, the you get 150 jelly beans for 1/2 of a dollar.
if x = 3, then you get 50 jelly beans for 1/2 of a dollar.

you can also work this out by determing the cost per jelly bean.
if you pay x dollars for 300 jelly beans, then the cost per jelly bean is equal to x/300.
now you want to buy 50 cents worth of jelly beans.
the number of jelly beans you can buy is the money you pay divided by the cost per jelly bean.
you pay 50 cents which is equal to 1/2 of a dollar.
you will get 1/2 / (x/300) which is equal to ((1/2)*300)/x which is equal to 150/x.
now let's assume x is equal to 1.
you will get 150/1 = 150 jelly beans.
now let's assume x is equal to 3.
you will get 150/3 = 50 jelly beans.

the equation becomes:
number of jelly beans = 150/x
x = cost for 300 jelly beans.
it's just a matter of how you want to look at it.

another way to look at it would be to set up a ratio.
the ratio would be:
300/x = y/.5
this ratio says:
300 jelly beans is to x dollars as y jelly beans is to half a dollar.
cross multiply to get:
.5*300 = x*y

simplify to get:
150 = x*y
divide both sides of the equation by x to get:
y = 150/x
same equation again.
x is the cost for 300 jelly beans.
y is the number of jelly beans you can get for half a dollar.
You might be interested in
What is the exact radian measure of an angle of 132
Pepsi [2]
Since we know that in π radians there are 180°, thus how many radians in 132°?

\bf \begin{array}{ccll}
de grees&radians\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
180&\pi \\
132&x
\end{array}\implies \cfrac{180}{132}=\cfrac{\pi }{x}\implies x=\cfrac{132\cdot \pi }{180}\implies \stackrel{simplified}{\cfrac{11\pi }{15}}
6 0
3 years ago
A figure is made from 8 unit blocks. It is 3 units tall. What is the maximum length the figure could be? Explain.
nadezda [96]
The maximum length is 5 . The 3 tall takes away from the 8 and then your left with 5.
3 0
3 years ago
Can someone pls help i will give you brainlist pls help me out. Find x. Round your answer to the nearest tenth
stich3 [128]

Answer:

x=11.5 i think

Step-by-step explanation:

3 0
3 years ago
A number of fiction books at a library was 3/4 of the total number of books. After 592 fiction books were donated to the library
Zielflug [23.3K]

There approximately 7133 books in the library;

Data;

  • Let the number of total books = x
  • Number of fictional books = 3/4x

<h3>Word Problem</h3>

To solve this problem, we simply need to use an equation to explain the word problem into mathematical statements.

Let the total number of books be represented by x

The number of fictional books = 3/4x

After 592 fictional books were donated;

\frac{3x}{4} + 592 = \frac{5}{6}x

Let collect like terms and solve

\frac{3x}{4} +592 = \frac{5}{6} x\\\frac{5}{6}x - \frac{3x}{4} = 592\\ 0.083x=592\\x = 592/0.083\\x = 7132.53

There approximately 7133 books in the library;

Learn more on word problems here;

brainly.com/question/13818690

4 0
2 years ago
Center: (-2,5), radius:7
Firlakuza [10]

Answer:

(x + 2)² + (y - 5)² = 7²

Step-by-step explanation:

Incomplete question.  I believe you meant, "write the equation of the circle with center at (-2, 5) and radius 7.

That would be:

(x + 2)² + (y - 5)² = 7²

5 0
3 years ago
Other questions:
  • 30 pts.!! Which expression is equivalent to (4√5^3)^1/2? <br>5^3/8 <br>5^6 5^16/3 <br>5^2/3
    8·1 answer
  • Sam had 1 1/2 m of rope. he cut 5/8 m used it for a project. how much rope does sam have left
    12·1 answer
  • Given P=1/2x(y+z),find the value of P,if x=6 and y=9 and z=7
    11·1 answer
  • If a family has three children draw a tree diagram representing the possible outcomes for the genders of the children and then l
    13·1 answer
  • ‼️‼️solve by substitution {2p-3r=6
    11·1 answer
  • Abs(sin(x) - sin(y)) ≤ abs(x-y)
    6·1 answer
  • If f(x) = 2x^3 - 3x + 1 find f(3)
    9·1 answer
  • What conclusions can you draw from the distances that you recorded in question 7
    8·2 answers
  • Emily and Mike each improved their yards by
    5·1 answer
  • If the velocity ratio of a machine is 1.5what will be its ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!