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
In the following, after distributing and solving, find the error.
larisa86 [58]
After 6x+48=72, you have to subtract 48 on both sides not add. Your final answer will be x=4. 72-48=24.. 24/6= 4.
8 0
3 years ago
I need answer fast..
Novosadov [1.4K]

Answer:

a. Portrays the case of two triangles being equal if two angles and the line between them are equal

b. The case of two triangles being equal when two of their lines are equal, compared 2 by 2 and the angles between them are equal

c. The case of two triangles being equal when all lines are equal, compared 2 by 2

5 0
3 years ago
Please help me to solve this problem<br>​
faust18 [17]

Answer:

\sqrt{3} + \frac{5\sqrt{3} }{6}

Step-by-step explanation:

tan(30°) = \frac{\sqrt{3}}{3}

cot(30°) = \sqrt{3}

sin(60°) = \frac{\sqrt{3}}{2}

\frac{\sqrt{3} }{3} +\sqrt{3} +\frac{\sqrt{3}}{2}  = \sqrt{3} +\frac{5\sqrt{3} }{6}

3 0
2 years ago
Read 2 more answers
I need this answer ASAP
oksian1 [2.3K]

the answer that I came up with is (c)

4 0
2 years ago
Read 2 more answers
Simplify the expression by combining like terms. 16+8−3+6−9
lyudmila [28]
Answer=18
First step combine the positive like terms
16+8+6
|
|
\/
30
Second step is to combine negative like terms with 30
30-3-9

When you do this you add 9 and 3 together since they are similar to each other so it equals 12 there for the equation becomes.....
30-12

Final answer 18
4 0
2 years ago
Other questions:
  • What is the length of RM or RN
    9·1 answer
  • Bridget measured a restaurant and made a scale drawing. The restaurant’s kitchen is 6 millimeters long in the drawing. The actua
    10·1 answer
  • Use the method of Lagrange multipliers to find the dimensions of the rectangle of greatest area that can be inscribed in the ell
    13·1 answer
  • Why is the percent of change from 145 pounds to 132 pounds
    11·1 answer
  • What is 100.35 and 67.89 and 77.67 and how many r there in all
    12·2 answers
  • Marco has a jug with 3 7/2 ounces of juice. he wants to use some small cups to pass out samples of the juice
    13·1 answer
  • Name the slope and the y intercept for the equation y= 5x -7
    6·2 answers
  • -6x +20 &gt;= -11x <br> solve the inequality
    6·1 answer
  • Please help help ASAP ASAP
    7·1 answer
  • The table represents some points on the graph of the exponential function that models the radioactive decay of a sample of xenon
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!