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
Flauer [41]
3 years ago
7

Katie has a collection of nickels, dimes and quarters with a total value of

Mathematics
1 answer:
garik1379 [7]3 years ago
5 0

10d+ 25q+5n= 805

D= n+8

Q= n+ 5



10d+ 25q+5n= 805

10(n+8)+25(n+5)+5n=805

10n+80+25n+125+5n=805

40n+205=805

40n=805-205

40n= 600

N=600/40

N= 15


D= n+8

D= 15+8

D= 23


Q=n+5

Q=15+5

Q=20


So 15 nickels ,23 dimes and 20quarters .


To check

15(0.05)= $0.75

23(0.10)=$2.30

20(0.25)=$5.00


Add it

5.00+2.30+0.75=8.05

7.30+.75=8.05

8.05=8.05

You might be interested in
Elenas bed measures 3‘ x 6‘ on the scale drawing what are the actual measurements of her bed
Sonbull [250]

Using proportions, supposing a scale of 1 inch = 3 feet, the actual measurements of her bed are given by: 9 ft x 18 ft.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and equations can be built to find the desired measures in the problem using basic arithmetic operations such as multiplication or division, from the relations built in the problem.

One example of application of proportions is for scale problems, as the actual scale and the drawing length are compared to find the actual length of the object drawn.

In the context of this problem, the scale is given by:

1 inch = 3 feet.

The drawn length of the bed is given by:

3 inches x 6 inches.

Hence the actual length is given by:

9 feet x 18 feet.

As:

  • 3 x 3 = 9.
  • 6 x 3 = 18.

<h3>What is the missing information?</h3>

The scale of the drawing is missing, hence we are going to suppose that it is 1 inch = 3 feet.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

4 0
1 year ago
Factor and solve the equation
murzikaleks [220]
y=4x^2-64=4(x^2-16)=4(x^2-4^2)=4(x-4)(x+4)\\\\-------------------------------\\\\4(x-4)(x+4)=0\iff x-4=0\ or\ x+4=0\\\\x=4\ or\ x=-4
8 0
3 years ago
A function g(x) has the points (-2, 8) and (2, 8 ) on its graph. Is the function:
Marianna [84]
The function is odd.
3 0
3 years ago
The given triangles are similar. Solve for x.
Maru [420]
The first one is 21.93 rounded up to 22.
8 0
3 years ago
a drawer contains 10 blue pens and 10 red pens Without looking Msr. Stanton takes 1 pen uses it and puts it back
Rudiy27
Answer:
1/2 if it's a probability question of getting one blue pen But there's also very little information on the question
Step-by-step explanation:

4 0
2 years ago
Other questions:
  • What is an equivalent fraction for 4
    8·2 answers
  • A disco ball is shaped like a sphere with a diameter of 16 inches. To the nearest square inch, what is the surface of the disco
    13·1 answer
  • Find an equation in standard form for the ellipse that satisfies the given conditions. Major axis length 10 on y-axis minor axis
    15·1 answer
  • Which process will transform Figure Honto Figure K?
    10·2 answers
  • Choose two transformations that could have been performed on triangle JKL to form congruent triangle J"K"L".
    12·1 answer
  • Find the output y, when the input, x, is 5. <br> y = 5x - 3<br> Y =
    14·1 answer
  • Y=3x+3<br> Fill in the table <br> 3<br> 4<br> 5<br> 6
    9·2 answers
  • Find the missing angle
    7·2 answers
  • What are the coordinates of point R
    8·2 answers
  • Can someone help me out? I'm stuck. i think I've got the layout but I'm not sure??<br>​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!