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
Mrrafil [7]
3 years ago
13

A collection of 108 coins containing only quarters and nickels is worth $21 wich value could replace q on the chart?

Mathematics
2 answers:
Greeley [361]3 years ago
5 0

Answer:

There would be 30 nickels and 78 quarters.

Step-by-step explanation:

To find this, start by creating a system of equations in which x is the number of nickels and y is the number of quarters. Make the first equation the total number of coins.

x + y = 108

Make the second equation based on the value.

.05x + .25y = 21

Now multiply the second equation by -4 and add together to get the y value to cancel.

x + y = 108

-.2x - y = -84

--------------------

.8x = 24

x = 30

Now use this value to find y.

x + y = 108

30 + y = 108

y = 78

Makovka662 [10]3 years ago
5 0

Answer:

There would be 30 nickels and 78 quarters.

Step-by-step explanation:

You might be interested in
Oliver needs to save at least $1500 to buy a computer. He has already saved $650. How much more does he need to save? Write
NikAS [45]

Answer:

I think it;s D

Step-by-step explanation:

:)

5 0
3 years ago
If my father left to go get milk in 2007, and he said it needs to be the special Russian milk, and it’s 2020 now, how much longe
Svetradugi [14.3K]

Hmmm according to my calculations “ n e v e r “

5 0
3 years ago
Read 2 more answers
HELP PLEASE !!!!!!!!
Paul [167]

Answer:

1. spends $80

2. Each garlic bread costs the same

3. Orders a pizza for 25.50 and two garlic breads

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
HELPPP MEEEE OUTTTTTT ITS URGENTTTTT!!!!
AlladinOne [14]

Answer:

(x-12)^2+(y-2)^2=4

Step-by-step explanation:

3 0
3 years ago
What interest rate is needed
KatRina [158]

Answer:

How to calculate interest rate

Step 1: To calculate your interest rate, you need to know the interest formula I/Pt = r to get your rate. ...

I = Interest amount paid in a specific time period (month, year etc.)

P = Principle amount (the money before interest)

t = Time period involved.

r = Interest rate in decimal.

5 0
3 years ago
Other questions:
  • What is 12 fewer than h hats
    10·2 answers
  • Please help me ASAP I NEED A ANSWER FAST
    9·1 answer
  • Write this equation in standard form<br> 9x^2-4y^2-24y-72=0
    15·1 answer
  • PLS HELP ME!!! Determine the horizontal asymptote for the rational function.
    5·1 answer
  • Solve the following inequality. 2(P + 1) &gt; 7 + P
    5·1 answer
  • Determine between which consecutive integers the real zeros of fw=x^3-2 are located
    9·1 answer
  • HELP IM DESPERATE QUICK NO LINKS!!! DONT PUT LINKS
    7·1 answer
  • Divide £100 in the ratio 1:4
    7·1 answer
  • What is the slope of the line through the points (2, 8) and (5, 7)?
    7·1 answer
  • A number multiplied by 5, subtracted from the sum of 14 and eight times the number
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!