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
Strike441 [17]
3 years ago
11

3. A restaurant bill of $350 was paid using $5 notes and $50 notes. The total number of

Mathematics
1 answer:
Sonbull [250]3 years ago
3 0

The number of $5 notes is 10 and $50 notes is 6

Step-by-step explanation:

Let x be the number of $5 notes

and

y be the number of $50 notes

Then according to given statements

"The total number of notes used was 16."

x+y=16    Eqn 1

"A restaurant bill of $350 was paid using $5 notes and $50 notes."

5x+50y=350       Eqn 2

From\ Eqn\ 1\\x+y=16\\y=16-x\\Putting\ y=16-x\ in\ equation\ 2\\5x+50(16-x)=350\\5x+800-50x=350\\-45x+800=350\\Subtracting\ 800\ from\ both\ sides\\-45x+800-800=350-800\\-45x=-450\\Dividing\ both\ sides\ by\ -45\\\frac{-45x}{-45}=\frac{-450}{45}\\x=10

Putting x=10 in equation 1

10+y=16\\y=16-10\\y=6

So,

The number of $5 notes is 10 and $50 notes is 6

Keywords: Linear Equations, Variables

Learn more about linear equations at:

  • brainly.com/question/2385771
  • brainly.com/question/2386054

#LearnwithBrainly

You might be interested in
Find the angle measures. Justify your responses/
Musya8 [376]

Answer:

m6 = 117 degrees

m7 = 63 degrees

Step-by-step explanation:

I just asked my friend 0_0

6 0
2 years ago
Read 2 more answers
A number is multiplied by 5,and then 3 is subtracted from the product.the result is 12.find the number
Allushta [10]
The number is 3. The math is 5 x 3 = 15 15 - 3 = 12
7 0
2 years ago
Read 2 more answers
I need helpppp:
Sedaia [141]

Answer:

The second table.

Step-by-step explanation:

In the first table, the speed goes from 45 down to 43; then down to 41; then up to 42; then up to 43.  It decreases and then increases.  This is not the correct table.

In the second table, the speed goes from 45 up to 47; then up to 49; then down to 48; then down to 47.  It increases and then decreases; this is the correct table.

To verify, we check the last two tables.  The third table stays at 45, then decreases to 43 and 41.  This is not correct.

The last table decreases from 45 to 43, then decreases to 41, then stays constant.  This is not correct.

The second table is the only correct one.

6 0
3 years ago
Read 2 more answers
Can someone help pls
Travka [436]

Answer: V = 706.5 cubic millimeters

Step-by-step explanation:

V = (3.14)(r^2)(h)

V = (3.14)(5^2)(9)

V = (3.14)(25)(9)

V = 706.5

5 0
3 years ago
Read 2 more answers
Identify the sampling technique used.
Shtirlitz [24]

Answer:

Random

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Two thirds of my cats plus five
    5·1 answer
  • If point P is 4/7 of the distance from M to N, what ratio does the point P partition the directed line segment from M to N into?
    6·2 answers
  • Mr Loretti spends $4.83 on pens and notebooks. How many of each item does he buy Expalin how you got your answer
    10·1 answer
  • $42 is 35% of what amount of money
    5·1 answer
  • The sum of the interior angle measures of a triangle is 180°. Angle B is three times the measure of angle A. Angle C is 52°. Fin
    11·1 answer
  • I need the volume of these two, please give me a quick answer. I don't have much time​
    6·2 answers
  • Please Help Me!!
    11·1 answer
  • Help me I’m lost I’ve been stuck on this the pas 20 min anyone help
    12·1 answer
  • Help!!! will give brainly if u help me! btw photo is attached
    6·1 answer
  • Katie just got her drivers license
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!