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
BaLLatris [955]
3 years ago
9

There are a total of 15 dimes and quarters in a covered cup. The value of all 15 coins totals 2.85

Mathematics
1 answer:
QveST [7]3 years ago
6 0

Answer:

There are 6 dimes and 9 quarters.

Step-by-step explanation:

Represent the number of dimes and the number of quarters by d and q.

Then d + q = 15, or q = 15 - d.

Also, ($0.25)q + ($0.10)d = $2.85, or 5q + 2d = 57.

Substituding 15 - d for q, we get 5(15 - d) + 2d = 57, or

75 - 5d + 2d = 57, or

75 - 3d = 57, or

3d = 18.  Thus, there are 6 dimes.  Since q = 15 - d, q = 15 - 6 = 9.

There are 6 dimes and 9 quarters.

You might be interested in
Plsss anybody help no links more files they are viruses
mr_godi [17]

Answer:

1- B & C (Same answer and also I'm not that sure)

2- B: y = 8x (I'm sure of this ^^)

3- Option 3

4- 108 degrees

8 0
2 years ago
Read 2 more answers
Which of the following is equivalent to i⁹
mote1985 [20]
The correct answer is letter F
4 0
3 years ago
Read 2 more answers
25. A wheelchair access ramp has an angle of elevation of 16°. If the ramp
Elanso [62]

Answer:

C. 76.81

Step-by-step explanation:

We must use one of the trigonometric ratios to find the length, L,  of the ramp.  If we use 16 as the reference angle, the 22 in would be our opposite side and the ramp length is the adjacent.

Therefore, we must use tan, which is \frac{opposite}{adjacent}:

tan (16)=\frac{22}{L} \\\\L*(tan(16)=22)\\\\L*tan(16)=22\\

\frac{L*tan(16)}{tan(16)}=\frac{22}{tan(16}  \\\\L=79.815=79.82 in.

8 0
1 year ago
Write which place to use when comparing the numbers 3,176 & 3,472
bulgar [2K]

Answer:

Step-by-step explanation:

To compare 3,176 and 3,472 using the number line, remember how numbers appear on a number line:

Smaller numbers are to the left, and larger numbers are to the right.

but since both is in the 3,000 just make sure one is on the left and find out where the bigger one goes on the right

6 0
3 years ago
Read 2 more answers
ANSWER ASAP --- NO LINKS-- 25 POINTS
Crazy boy [7]

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other. Wikipedia

3 0
3 years ago
Other questions:
  • Name and describe the three major highway conditions that require speed adjustment.
    9·1 answer
  • Determine o valor de "m" para que o gráfico da função f(x)=3x-n-7 :
    10·1 answer
  • When solving a literal equation, what is the trick for isolating a variable that appears more than once?
    14·2 answers
  • Please help ASAP i don’t understand this !!
    14·2 answers
  • Do the ratios 21:28 and 6:8 form a proportion?
    5·1 answer
  • PQR is right-angled triangle.calculate the soze of the angle marked correct.
    12·1 answer
  • 2×2+5×a3×3-7×2+5×-y​
    12·1 answer
  • Can someone help me pleasee :)
    14·1 answer
  • The table shows the cost of taking a rideshare trip. Which description correctly reflects the way the charges are calculated?
    12·1 answer
  • The HCF of 12, 8 ,32 is?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!