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
gavmur [86]
4 years ago
9

You start collecting loose coins in a jar from laundry. You are hoping that the jar has $5. The jar consist of nickles and quart

ers. There are 40 coins all together. How many nickels and quarters are in the jar?
Mathematics
2 answers:
trapecia [35]4 years ago
4 0

Answer:

q = 15

n = 25

Step-by-step explanation:

Solution

Let the nickels = n

Let the quarters = q

q + n = 40                            (1)

0.25*d + 0.05*n = 5.00       (2)    Multiply 2 by 100 to get everything into pennies. It is currently in dollars.

25q + 5n = 500                    Multiply (1) by 5

5q + 5n = 200                     Subtract

20q = 300                           Divide by 20

20q/20 = 300/20               Do the division

q = 15

q + n = 40                             Substitute 15 for q

15 + n = 40                           Subtract 15 from both sides

15 - 15 + n = 40 - 15              

n = 25

Check

15 * 0.25 + 25 * 0.05

3.75 +  1.25

5

Which is what it should equal.

pav-90 [236]4 years ago
3 0

Answer:

15 quarters and 25 nickles

Step-by-step explanation:

15quarts= $3.75

25 nickles=$1.25

total $5

You might be interested in
Hugh is paid 119 for 8.5 hours of work what is the rate of pay per hour ?
mihalych1998 [28]

To find your answe you need to divide 119 by 8.5 in order to find how much he is paid per hour :

119 ÷ 8.5 = $14


The answer is : Hugh is paid $14 per hour.


There you go! I really hope this helped, if there's anything just let me know! :)

5 0
3 years ago
An allergy drug is tested by giving 130 people the drug and 100 people a placebo. A control group consists of 70 people who were
Ksenya-84 [330]

Answer:

Need more info?

There is no icon.....

Please screenshot the table.

3 0
3 years ago
Please help me do to night
Vesna [10]

Answer:

1.) -4x+30y 2.) distributive property 3.) -4x+30y, (-0.4(3)+3(2)), 10(-1,2)+10(6), -12+60, =48

Step-by-step explanation:

10(-0.4x+3y)= 10(-0.4x)+10(3y)= -4x+30y

10(-0.4(3)+3(2))

10(-0.4(3))+10(3(2))

10(-1.2)+10(6)

-12+60

= 48

7 0
2 years ago
Whoever answers this question correctly will get the brainliest. what is 5x+9 if x=12
nataly862011 [7]
5 times 12 =60
so 60+9
the answer is 69
hope it helped
4 0
3 years ago
Read 2 more answers
Which one is more <br> –3\5 or –2/3<br> Please help
Kaylis [27]

Answer:

-3/5

Step-by-step explanation:

the smaller negative is still greater, because its negative.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A motorboat takes
    9·1 answer
  • Solve this2^x=3^(x+1) what are the exact and approximate solutions
    14·1 answer
  • Which figure has both line of symmetry and rotational symmetry
    9·1 answer
  • What is 9 x any number 1 through 10
    11·2 answers
  • Please help me identify the rays!!!!
    8·1 answer
  • Find the volume of each composite figure. Round to the
    5·1 answer
  • Mark was watching a movie that was 124 minutes long. He fell asleep 75% of the way through. How many minutes of the movie did Ma
    9·1 answer
  • When x = 4 and y = 3, find the value of:
    10·1 answer
  • Solve for p.<br><br> 5p − 8(6p − 5) = p − 4<br><br> p =
    9·1 answer
  • There are two unit rates for every rate, true or false?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!