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
earnstyle [38]
3 years ago
11

luke has $1.40 in quarters and nickels. he has 2 more quarters than nickels. how many coins of each type does he have?

Mathematics
2 answers:
Ainat [17]3 years ago
8 0

Answer:

3 nickels and 5 quarters

Step-by-step explanation:

Let n = number of nickels

q = number of quarters

q = n+2

.25q + .05n = 1.40

Using the first equation and replacing q in the second equation

.25( n+2) + .05n = 1.40

Distribute

.25n+.50 +.05n = 1.40

Combine like terms

.30n +.5 = 1.40

Subtract .5 from each side

.3n +.5-.5 = 1.40-.4

.3n = .9

Divide by .3

.3n/.3 = .9/.3

n = 3

q = n+2

q=5

Dahasolnce [82]3 years ago
4 0

Step-by-step explanation:

Let the

Nickel coin = x

Quarter coin = y

y = n + 2

0.25y + 0.05x = 1.4

0.25(x + 2) + 0.05x = 1.4

0.25x + 0.5 + 0.05x = 1.4

0.25x + 0.05x = 1.4 - 0.5

0.30x = 0.9

x = 0.9/0.3

x = 3

y = 3 + 2 = 5

You might be interested in
Enrique is a library volunteer. On Saturday he shelved 240 books in one hour. At this rate how many books did he shelve in one m
alexandr1967 [171]
Answer is 4 books per minute. 240 (books) divided by 60 (minutes in one hour) equals 4
8 0
3 years ago
What is the answer to f(x)=x^2-10x+4 f(-2)
Maru [420]

Answer:

Step-by-step explanation:

f(x)=4+20+4

    =28

3 0
3 years ago
Write x2 - 12x + 8 = 0 in vertex form.
antiseptic1488 [7]
(x-4)^2-19=y
you first add the three to the other side, then add 16 on both sides, make the left side x-4 squared, and lastly you subtract 19 from both sides.
3 0
2 years ago
Read 2 more answers
Two planes that have a line in common are called
natima [27]

Answer:

they would be intersecting lines

Step-by-step explanation:

brainly crown apricated if I'm right

7 0
3 years ago
A line is parallel to y = 3x – 2 and<br> intersects the point (3,5).
Liula [17]

Answer:

Ask a freaking tutor like it's not that under your answer it will say ask a tutor

7 0
3 years ago
Other questions:
  • Nick won a $1,000 lottery prize. He can't decide what he should spend the money on. For some time now, he has been planning to b
    5·1 answer
  • Major league baseball’s fastest recorded pitch is 105 miles per hour.The distance between the pitchers mound and home plate is 6
    12·1 answer
  • 10q+5<br><br><br>I need the answer asap
    12·1 answer
  • 7x+3(×+6)=8 .....whut , it makes NO SENSE!!!!!!!
    6·2 answers
  • What do you have to do to each side to solve x + 5 &gt; 2? ​​
    9·1 answer
  • Jack's last six scores are 75,78,83,80,79,84. If he scores a 90 on the next test, by how much will his mean test score increase?
    15·1 answer
  • 4. Coach Kent brings 3 quarts of sports druk U
    8·1 answer
  • Which expression is equivaien. to 6 (3x + 4)?
    9·1 answer
  • Solve x – 5 = 16 for x.
    8·2 answers
  • Lin is running on a track. Lin runs 5 laps around a track in 6 minutes. How many laps per minute is that? (Round to the nearest
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!