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
Nata [24]
3 years ago
12

A jar contains n nickels and d dimes. There is a total of 206 coins in the jar. The value of the coins is $13.95. How many nicke

ls and how many dimes are in the jar? ​
Mathematics
1 answer:
OLga [1]3 years ago
6 0

Answer:

73 dimes and 133 nickels

Step-by-step explanation:

$13.95 = 1395 cents

5n + 10d = 1395     (since each nickel is 5 cents and each dime is 10 cents)

5n = 1395 - 10d      (subtract 10d from both sides to solve for n)

n = 279 - 2d

n + d = 206

279 - 2d + d = 206   (substitute n with the previous expression)

279 - d = 206         (add variable d and -2d)

-d = -73        (solve for d and divide both sides by negative 1)

d = 73          

n + 73 = 206 (solve for n and subtract both sides by 73)  

n = 133

You might be interested in
Find the area of a traingle given that the base is 19.5cm and height is 8 4/5cm.
Phoenix [80]

Answer:

85.6cm

Step-by-step explanation:

Area of a triangle =1/2*b*h

Where base=19.5cm while the height is 8 4/5 = 8.8

Area = 1/2 * 19.5cm * 8.8cm

Area = 171.6cm/2

Area=85.6cm

3 0
3 years ago
What is 3 2/5 / 6 plz help!!!
Illusion [34]

Answer:

The answer is 0.56 the 6 is repeating

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
In the morning the temperature is 0 F. It is drop out rate of 3° perh what is the temperature after five hours
r-ruslan [8.4K]

Answer:

-15 degrees

Step-by-step explanation:

3 times 5 is 15 and its negative because it says it DROPS every hour and its taking the temp every 5 hrs

6 0
3 years ago
When a third of a number is subtracted from a half of the same number, 60 is the result. Find the number
AURORKA [14]

the answer is 360 because if you take a third you will have 120 then if you take half of that then you get 60

6 0
3 years ago
86 is 45% of what number
Alik [6]
Hello there! We are talking about 86 being part of a number, so we are looking for the whole. To find the number we are looking for, we can write and solve a proportion. Set it up like this:

86/x = 45/100

86 is 45% of a number. We know the part, so now we are looking for the whole. 45% is part of 100%, so we put that part together. Cross multiply the digits. 100 * 86 is 8,600. 45 * x is 45x. That simplifies to 8,600 = 45x. Now, divide each side by 45 to isolate the x. 45x/45 cancels out. 8,600/45 is 191.1111111 or 191 1/9 in fraction form. There. x = 191 1/9 86 is 45% or 191 1/9

Note: Or, if you have to round to the nearest whole number, the answer is 191, or if you have to round to the nearest tenth, the answer is 191.1. It all depends on if the answer needs to be rounded or exact.
4 0
3 years ago
Other questions:
  • A frozen dinner at the grocery store is purchased for $2.20 a wholesale and is a marked up for 40 percent. a customer wants to b
    6·1 answer
  • At Smith's Bike Rentals, it costs $39 to rent a bike for 8 hours. How many dollars does it cost per hour of bike use?
    13·1 answer
  • What are the domain and range of the function f(x) = 4?
    13·1 answer
  • If a=mg-kv2/m,find,correct to the nearest whole number the value of v when a=2.8,m=12,g=9.8 and k=8/3
    6·1 answer
  • Find the volume of each prism.<br>4 in.<br>3 in.<br>7 in.​
    9·1 answer
  • I need some help with these math problems
    8·1 answer
  • Evaluate if m= -6 and n= -2<br> (2m divided by n) <br> please help!!11!!
    15·1 answer
  • Help ASAP. 25 Points.<br><br> Find the length of the legs.
    12·2 answers
  • Please help I have been stuck on this for five minute and I want to have a good grade on my report card. :(
    9·1 answer
  • PLS HELP ASAP I BEG YOU
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!