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
denis-greek [22]
3 years ago
14

Maria has $2.43 in quarters and pennies in her wallet. She has twice as many pennies as quarters. How many coins of each type do

es she have?
Mathematics
2 answers:
user100 [1]3 years ago
5 0

Given maria has \\\$ 2.43 in the pennies & quarters.

she has twice as many pennies  as quarters.

find out the coins

let us assume the  quarters are x

than the pennies are 2x.

Formula

 value of the pennies +  value of the quarters = total value of coins

1 quarters =$ 0.25

1 pennies = $0.01

Thus

0.25x + 0.01 (2x) = 2.43

0.27 x = 2.43

x = 9

2x = 18

i.e the number of quarters are 9 and the number of pennies are 18.

Hence proved





iragen [17]3 years ago
4 0

Answer: 9 quarters and 18 pennies

Step-by-step explanation:

0.25q+0.01(2q)=2.43

Multiply. 0.25q+0.02q=2.43

Combine like terms. 0.27q=2.43

Divide by 0.27. q=9 quarters

The number of pennies is 2q.

2q  = 2⋅9  = 18 pennies

You might be interested in
How many different committees can be formed from 6 teachers and 37 students if the committee consists of 4 teachers and 4 ​stude
Anna [14]

Answer:

The committee of 8 members can be selected in 990,675 different ways.

Step-by-step explanation:

The order in which the teachers and the students are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

4 teachers from a set of 6.

4 students from a set of 37.

Then

T = C_{6,4}C_{37,4} = \frac{6!}{4!2!} \times \frac{37!}{4!33!} = 990675

The committee of 8 members can be selected in 990,675 different ways.

4 0
3 years ago
One hundred eighty is equal to how many tens
Nadya [2.5K]
There are 18 tens in 180 because if you divide 180 divided by 10, you get 18. you can also do it in your head!!! 
Hope this helps!!!
5 0
3 years ago
What do the Nineteenth Amendment and the Indian Citizenship Act of 1924
lana66690 [7]

Answer:

D

Step-by-step explanation:

Suffrage is the right to vote, and the nineteenth amendment gave women the right to vote, and the indian citizenship act of 1924 gave native americans the right to vote

3 0
3 years ago
Solve for x <br> 3(2)^3x+1
lubasha [3.4K]

Answer:

24

Step-by-step explanation:

the simplified version of this expression would be 24 x  +  1

5 0
3 years ago
How many time larger is 5000 to 5
disa [49]

Answer:

1000 times larger.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • What would you use a two-way table to display data?
    10·1 answer
  • What's the best five terms to the list?
    7·1 answer
  • Start at 200. creat a that multiples each number by two stop when you have 5 numbers.
    13·2 answers
  • I need to find x and y
    12·1 answer
  • Lee sells electronics. He earns a 5% commission on each sale he makes. If lee sells the PS5 for 500, how much does lee make in c
    9·1 answer
  • G(r) = 5(r-4), when g(o)
    13·1 answer
  • What is the conjugate of 7+2√5<br><br><br> i don’t know how to do this please help
    6·1 answer
  • Are inverse functions? <br> f(x) = <br> 1<br> 3<br> x − 8, g(x) = 3x + 2
    13·1 answer
  • For khan academy . Need answer immediately
    8·1 answer
  • On a number line, which fraction is between 1/4 and 1/5?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!