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
mr Goodwill [35]
3 years ago
6

Luis is saving money to purchase a new video game. He has a total of 30 coins consisting of nickels and dimes. The value of the

coins is $2.20. Let n represent the number of nickels and let d represent the number of dimes. Which system of equations can be used to determine the number of nickels and the number of dimes Luis has?
Mathematics
2 answers:
makkiz [27]3 years ago
5 0

Answer:

n + d = 30      ---------------------(1)

0.05n + 0.10d = 2.20 ----------(2)

Step-by-step explanation:

Luis is saving money to purchase a new video game.

'n' be the number of nickels and 'd' is the number of dimes.

Statement (1)

He has total 30 coins consisting of nickels and dimes.

n + d = 30 ---------(1)

Statement (2)

The value of coins is $2.20.

∵ 1 nickel = $0.05

∴ n nickels = $0.05n

∵ 1 dime = $0.10

∴ d dimes = $0.10d

Now as per statement 0.05n + 0.10d = 2.20 ----------(2)

This is the system of two equations which can be used to determine the number of nickels and dimes Luis has.

madreJ [45]3 years ago
4 0
N + d = 30
0.05n + 0.10d = 2.20

^^ ur system of equations
You might be interested in
Solve for b.<br><br> −1/3b=9<br><br> What is the answer?
Ksivusya [100]
-1/3b = 9
b = 9 * -3
b = -27
5 0
3 years ago
Read 2 more answers
Graph the function y = __ 2x
katen-ka-za [31]

Answer:

Well, if <em>y </em>is 1

Then the equation would be y = 1 (2x)

So, depending on the answer options. Y would be double of whatever the X value is.

See how 1 X value is worth 2 Y?

Example Attached

6 0
2 years ago
On Sunday Lindsay rode her bikeb3 times as far as she did on Saturday. On Saturday she rode 3 miles. How far did she ride on Sun
Naddik [55]

Answer:

9 miles

Step-by-step explanation:

3 times 3 is 9

7 0
3 years ago
Can Some one please help me on these math questions<br><br>I'll give 20 points please
MArishka [77]

Answer:

☐ -2 < 2x + 4

☐ -3x - 2 > 5

Step-by-step explanation:

-3x - 2 > 5

+ 2 + 2

___________

-3x > 7

___ ___

-3 -3

x < -2⅓ [Anytime you <em>divide</em> or <em>multiply</em> by a negative, reverse the inequality symbol.]

-2 < 2x + 4

-4 - 4

___________

-6 < 2x

__ ___

2 2

-3 < x

If you plug in -3 for <em>x < -2</em><em>⅓</em><em>,</em><em> </em>you will see that it is a genuine statement because the more higher a negative gets, the lesser the integer will be, so in this case, -3 IS <em>less</em><em> </em><em>than</em><em> </em>-2⅓.

I am joyous to assist you anytime.

** If it is not multi-select, then choose <em>-2 < 2x + </em><em>4</em><em>.</em>

4 0
3 years ago
400 reduced by 3 times my age is 163
Blababa [14]
400 - 3x = 163

Add 3x to both sides.

400 = 163 + 3x

Subtract 163 to both sides.

237 = 3x

237/3 = 79
5 0
3 years ago
Other questions:
  • Which of the following is equivalent to (4x - 3)(2x - 7)? Select all that apply.
    14·1 answer
  • If _JOY and ZLOV form a vertical pair and mzJOY = 8x + 15 and mZLOV = 4x + 25, find the
    5·1 answer
  • at an amusement park, Robin bought a t-shirt for $8 and 5 ticket for ride. she spent a total of $23. How much did each ticket co
    5·2 answers
  • What is one third of 1296? Please give an explanation.
    12·2 answers
  • Can someone help me!!
    7·1 answer
  • How to evaluate this expression -3 . (6 + 4 . 2)
    9·1 answer
  • The perimeter of a rectangle is 50 inches. The length of the rectangle is 10 inches. Which
    9·1 answer
  • Can someone help me with these to please I really need these rn ??
    6·2 answers
  • +(5)-(10)+(5)-6+10=????
    6·2 answers
  • The weights of four kittens in pounds are shown in the image. Which list shows these weights in order from least to greatest?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!