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
lesantik [10]
3 years ago
15

,,,Help Please.. Question in the file.

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
6 0
So hmmm there are 5pennies in a nickel, and 10pennies in a dime and 25pennies in a quarter

now, in $6.10, there are 610 pennies

n = amount of nickels coins
d = amount of dime coins
q = amount of quarter coins

so... we know, there are 5*n or 5n pennies in the nickels, and 10*d or 10d pennies in the dimes and 25*q or 25q in the quarter coins, and we know their sum is 610 pennies total, thus

5n + 10d + 25q = 610

now, there are 4 more "n" then "d", so whatever "d" is, "n" is 4  more than that
n = d + 4

and twice as many "q" than "n", so, whatever "n" is, then
q = 2n

\bf 5n+10d+25q=610\implies n+2d+5q=122\qquad 
\begin{cases}
n=d+4\\
q=2n\\
------\\
q=2(d+4)\\
\qquad 2d+8
\end{cases}
\\\\\\
\boxed{d+4}+2d+5\left( \boxed{2d+8} \right)=122

solve for "d", to see how many dimes are there

what about the nickels? well, n = d + 4
what about the quarters?  well, q = 2d + 8
You might be interested in
I need the volume and surface area
MatroZZZ [7]

Answer:

Volume: V≈113.1

Step-by-step explanation:

Solved for sphere

Shape: Sphere

Formula: V=43πr3

Volume: V≈113.1

1: R is the radius meaning calculate the radius to find the volume of a sphere.

2: The correct answer is below for this question.

Answer: V≈113.1

<em><u>Hope this helps.</u></em>

5 0
2 years ago
What is 4/7 divided by 5
Lana71 [14]

Answer:

4/7/(5)=4/(7×5)=4/35

6 0
2 years ago
Anthony Chen's father is going to put a tile border around
Levart [38]

Answer: 12

Step-by-step explanation:

One yard is three feet. So three times four is 12 because it makes four yards in total with each side being a yard.

3 0
3 years ago
Use elimination to solve for x and y:
trapecia [35]

Answer:

x=3, y=2

Step-by-step explanation:

8 0
2 years ago
A number that when multiplied equals 576 but when added equals 48
Flauer [41]
...... 24 is the answer
5 0
2 years ago
Read 2 more answers
Other questions:
  • Are 2/8 and 3/4 equivalent
    8·2 answers
  • How many 90° angles are formed by the intersection?
    8·2 answers
  • When calculating the volume of an object, why do the units end up being raised to the third power as in cm3?
    5·1 answer
  • If x^2=4 then can x only be equal to 2?<br><br> (Geometry) true or false?
    9·2 answers
  • You have $859 saved for a new bedroom suite. You need $1,200. How much more do you need to save? A. $349 B. $301 C. $341 D. $321
    7·2 answers
  • The points A, B, and C reside on a line segment. B is the midpoint of AC. If line AB measures 6 units in length, what is the len
    9·1 answer
  • Please help me out! I have lots of work to do and if you help it will relieve the stress.
    5·1 answer
  • Another page needs to be solved
    5·1 answer
  • A box of candy has 8 caramels and 17 nougats. If Jose randomly takes 1 piece and then another piece without replacement, what is
    7·1 answer
  • Solve using elimination x-2y=12 and 5x+3y=-44 *<br><br> (4,8)<br> (-4,8)<br> (4,-8)<br> (-4,-8)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!