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
nadya68 [22]
3 years ago
15

19. Tom has 30 coins with a value of $3.30. If they are all nickels and quarters, how many of each kind of coin does

Mathematics
1 answer:
vova2212 [387]3 years ago
4 0

Answer:

n = nickels, q = quarters

Equation 1: n+q=30

Equation 2: 0.05n+0.25q = 3.30

Step-by-step explanation:

From equation 1, n = 30-q

Substitute in Equation 2:

0.05(30-q) + 0.25q = 3.30

1.5 - 0.05q + 0.25q = 3.30

0.2q = 1.8

q = 9

Substitute in new equation:

n = 30-9

n = 21

It is important to note a nickel is worth 5 cents and a quarter is 25 cents. This helps us build the equations.

You might be interested in
Which of the following phrases are inequalities?
aev [14]

Answer:

B, C, and D

Step-by-step explanation:

They have an either a less than sign ( < ) or a greater than sign ( > ).

4 0
2 years ago
Amanda's bank offers a savings account with a 2.8% APR, compounded monthly. What is the actual annual percentage yield on this a
Galina-37 [17]
It is a. 2.84 percent
5 0
3 years ago
Read 2 more answers
Which statement is best represented by the inequality c greater-than 3 and one-half?
luda_lava [24]

Answer: Chef Andre used more than 3 and one-half cups of flour.

Step-by-step explanation:

This is the > ‘greater than sign. For the question, we are to get the inequality that shows that"c is greater-than 3 and one-half".

Let Chef Andre be represented by c. Greater than is used to denote a situation when something is."more than" another thing. In this scenario,

Chef Andre used more than 3 and one-half cups of flour. This can be represented as C > 3 1/2.

This is the correct answer.

3 0
3 years ago
Read 2 more answers
BRAINLY Ez 4 &amp; 5 if possible formula is (4/3)(/pi)(R)^3
mafiozo [28]

Answer:

............

Step-by-step explanation:

6 0
2 years ago
A deep sea diver is 4.5m below the water level At what depth he is now ? At what height is he now
oee [108]

Answer:

Step-by-step explanation:

Below the sea level should be mentioned by negative value

So, It is  =  - 4.5

7 0
3 years ago
Other questions:
  • Tom wants to order tickets online so that he and three of his friends can go together to a water park. The cost of the tickets i
    13·2 answers
  • Rate of change (slope) written as an expression 7n-23
    5·1 answer
  • jill has $9.96 in nickles,pennies, and dollar bills. she has 12 more pennies than nickles and fove fewer dollar bills than nickl
    7·1 answer
  • Plz Help
    13·1 answer
  • WILL MARK BRAINLIEST ASAP!
    6·1 answer
  • Tyler goes to the store. His budget is $125. Which inequality represents x, the amount in dollars Tyler can spend at the store?
    11·1 answer
  • A boy standing on the shore of a lake 1 mile wide wants to reach the fast-food restaurant 3 miles down the shore on the opposite
    8·1 answer
  • In the figure shown, GD = 3x + 5, GF = 6x-4, and G is the incenter of AABC. Find GE
    6·1 answer
  • Can someone please answer this question. ASAP. put it as an whole number. NOT A FRACTION.
    5·2 answers
  • In a country 55% of the male population has houses in cities while 30% have houses both in cities and in villages . Find the per
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!