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
Marat540 [252]
3 years ago
11

Joan has an equal number of dimes and quarters with a total value of

Mathematics
1 answer:
Ghella [55]3 years ago
3 0
First, let's define the variables d and q as follows:

d: total number of dimes
q: total number of quarters.

"Joan has an equal number of dimes and quarters" means that d=q.

"...with <span>with a total value of $1.40</span>" means that

                                0.1 d + 0.25 q =1.40.  ***

This is because Joan has a total of d dimes each with a value of 0.1$, and a total of q quarters, each with a value of 0.25.

Since d=q, we can write the equation *** as:

0.1 q +0.25 q=1.40

        0.35 q=1.40

              q=1.40/0.35 = 4.

Thus, Joan has a total of 4 quarters, and 4 dimes.


Answer: 8 coins.
You might be interested in
The Jackson's are taking out a $35,000 loan to remodel their home. The tables below show the rates for a 1-year and a 5-year loa
Vladimir [108]

Answer:

have a good day :)

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
I need some help with 22, 24, 25
valkas [14]
22 increases by 0.9
24 increases by 4 and 1/2
25 increases by 4.3
Just subtract the number from the number after it to find how to find the next numbers in the sequence
5 0
3 years ago
Read 2 more answers
Which of the following graphs represents an exponential function?
Law Incorporation [45]

Answer:

4

Step-by-step explanation:

as it is an upward curve

3 0
3 years ago
Read 2 more answers
What best describes the expression y /4 ? (5 points) O a Some number divided by 4 Oь Some number times 4 Oc 4 more than some num
Elodia [21]

Answer:

Some number divided by 4

Step-by-step explanation:

The y stands for an unknown number, aka some number. The slash indicates division, so it would be some number divided by 4.

8 0
2 years ago
The crosssectional areas of triangular prism and a night cylinder are congruent. The triangular prism has a helght of 5 units, a
dmitriy555 [2]

Answer:

The volume of the triangular prism  is not equal to the volume of the cylinder

Step-by-step explanation:

Given that:

The cross sectional area of triangular prism and a night cylinder are congruent. The term 'congruent' means when two objects or shapes are placed above each other , they should both overlap exactly.

It was given that:

The triangular prism has a height of 5 units

and the right cylinder height of 3 units

The conclusion that can be drawn from this is that:

The volume of the triangular prism  is not equal to the volume of the cylinder.

This is because, they do not occur in the same family. A triangular prism is a three - dimensional shape that has identical, parallel ends and parallel faces.

A triangular prism has two triangles at it ends and three rectangular faces.

The volume of the triangular prism is calculate by using the formula:

V= \dfrac{1}{2}\times b \times h\times l

On the other hand, a cylinder is a shape with two circular ends and a curved surface.The two circular ends are congruent and both circular end posses the same cross section from one end to the other in the cylinder.

The volume of a cylinder is calculated by using the formula:

V = πr²h

Thus, we conclude that irrespective of the nature of their congruency, since the heights are different which will definitely affects their volume, the the volume of the triangular prism is not equal to the volume of the cylinder.

3 0
3 years ago
Other questions:
  • A spherical ball just fits inside a cylindrical can, 20 centimeters tall, with a diameter of 20 centimeters. Which expression gi
    10·1 answer
  • Susan designed a circular pool with a diameter of 25 meters. What is the area of the bottom of the pool? Round to the nearest te
    11·1 answer
  • An object is dropped off a building that is 144 feet tall. After how many seconds does the object hit the ground? (s = 16t 2) 3
    15·2 answers
  • O A PQR is reflected over the x-axis. What are the<br> coordinates of O'?
    15·2 answers
  • I need help with this question.
    15·2 answers
  • Heyy!! Can someone help me please!!
    9·2 answers
  • Can someone put a website to help me understand this?
    8·1 answer
  • Julio bought 4 pounds of apples and one bag of oranges at the store. The apples cost $1.75 per pound and the bag of oranges cost
    8·1 answer
  • Can someone help explain this problem
    5·1 answer
  • Given the function defined in the table below, find the average rate of change, in
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!