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
spin [16.1K]
2 years ago
15

sally has a piggy bank with $10 in it. She counted 68 coins of only quarters and nickles. How many nickles are in her piggy bank

?
Mathematics
1 answer:
UkoKoshka [18]2 years ago
7 0

Answer:

n=35; q=33 coins.

Step-by-step explanation:

1) if number of nickles is 'n' and the quaters is 'q' then it is possible to write:

n+q=68 - 'she counted 68 coins...' - the 1st equation of system;

0.25q+0.05n=10 - '10$ in it' - the 2d equation of the system.

2) it is possible to make up and solve the next system of two equations:

\left \{ {{q+n=68} \atop {0.25q+0.05n=10}} \right. \ => \ \left \{ {{q=33} \atop {n=35}} \right. .

You might be interested in
Anna walks at a constant rate of 8 miles every 2 hours Graph a line to show the relationship between the time in hours, 1 and th
stiks02 [169]

Answer:

We see that the only complete time-distance pair indicates that she walked 6.4 miles in 2 hours. If she walked at a constant speed, we can conclude that girl walked 3.2 miles in 1 hour. Using this speed, we can find the remaining values in the table. The easier entry to complete is finding out how far she walked in 5 hours: 5 hours⋅3.2 miles/hour=16 miles. To find out how long it took to walk 8 hours we can either notice that 8 is half of 16, so it took half the time to walk half the distance or we can divide 8 miles by 3.2 miles per hour to find that it took 2.5 hours

Step-by-step explanation:

8 0
3 years ago
Tell how you can critique Jason reasoning
NeTakaya
Is there another part to your question
4 0
3 years ago
Read 2 more answers
I would love if someone could help me Thanks in advance
Montano1993 [528]
Answer: Choice A, -1540 feet

----------------------------------

Explanation:

Multiply the rate (44 ft per sec) by the number of seconds (35) to get 44*35 = 1540

The answer will be negative to indicate that the altitude has gone down. If you put in a positive change, then the altitude would go up. So that's why the answer is choice A

Note: when you multiply 44 ft/sec by 35 sec, the "second" units cancel out leaving just feet.

Another note: if you want, think of the 44 as -44 to indicate that the plane is decreasing at a rate of 44 ft/sec

7 0
3 years ago
A red bus leaves a theme park every 24 minutes and a blue bus leaves the park every 20 minutes. they both leave the park at noon
earnstyle [38]

Answer:

2:00 PM

Step-by-step explanation:

20 = 2² × 5

4 0
3 years ago
PLEASE HELP!!!<br> Rewrite <img src="https://tex.z-dn.net/?f=f%28x%29%3D%7Cx%7C" id="TexFormula1" title="f(x)=|x|" alt="f(x)=|x|
muminat

hey

wanna be friends

3 0
3 years ago
Other questions:
  • A. 25(-5) = ? b. -15(-5) = ?
    10·1 answer
  • ASAP please help!!!
    6·1 answer
  • Which has the greater area: a 6 ‐centimeter by 4 1 2 ‐centimeter rectangle or a square with a side that measures 5 centimeters?
    14·1 answer
  • This morning 340 guests at a hotel requested room service if there are 500 guests in the hotel what percent of guests requested
    8·1 answer
  • Item 3 Write and solve an equation to answer the question. You order two servings of pancakes and a fruit cup. The cost of the f
    13·1 answer
  • PLEASE HELP. i need to show my work for<br> the correct answer. please help
    10·1 answer
  • The Area. is __ square units.​
    5·2 answers
  • what is the slope of a line parallel to the line whose equation is y=2/3x+7 fully simplify your answer
    12·1 answer
  • One of the legs of a right triangle measures 2 cm and the other leg measures 15 cm. Find the measure of the hypotenuse. If neces
    13·1 answer
  • How do you find the slope of a line given any 2 points on the line
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!