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
horrorfan [7]
3 years ago
5

Becky and luke bought the same kind of pencils and erasers . Becky spent $1.45 for 2 pencils and 3 erasers . Luke spent $2.65 fo

r 5 pencils and 1 eraser what is the Cost of 1 eraser ?
Mathematics
1 answer:
ivann1987 [24]3 years ago
6 0

Answer: the cost of each pencil is $0.5

the cost of each eraser is $0.15

Step-by-step explanation:

Let x represent the cost of one pencil.

Let y represent the cost of one eraser.

Becky spent $1.45 for 2 pencils and 3 erasers. This means that

2x + 3y = 1.45- - - - - - - - - -1

Luke spent $2.65 for 5 pencils and 1 eraser. This means that

5x + y = 2.65- - - - - - - - - -2

Multiplying equation 1 by 1 and equation 2 by 3, it becomes

2x + 3y = 1.45

15x + 3y = 7.95

Subtracting, it becomes

- 13x = - 6.5

x = - 6.5/- 13

x = 0.5

Substituting x = 0.5 into equation 2, it becomes

5 × 0.5 + y = 2.65

2.5 + y = 2.65

y = 2.65 - 2.5

y = 0.15

You might be interested in
PLEASE HELP!! I’ve added an attachment. Please help me find the type of statement for this mathematical question. TYSM!!
Flauer [41]

Answer:

Step-by-step explanation:

             Statements                                  Reasons

1). AD ≅ BC                                           1). Given

2). ∠D ≅ ∠C                                          2). Given

3). ∠DEA ≅ ∠CEB                                 3). Vertically opposite angles

4). ΔADE ≅ Δ BCE                                4). AAS postulate of congruence

5). AE ≅ BE                                           5). CPCTC

Hence, proved.

5 0
3 years ago
Which expression is equal to 5√20 -3√45<br> -√5<br> 11√5<br> √5<br> -11√5
iVinArrow [24]
The second one which you would solve 5/20and -3/45
4 0
3 years ago
Read 2 more answers
reverend James insists that every person attending Easter services make a cash donation to the charity box. there are three choi
inn [45]
120 people.  50% is 60 people.  20% is 24 people, the rest is 36.
Let L=large donation, M=medium.  We also have L=4M.  The donation equation is then:
60L+36M+24=4440
60L+36M=4416  substitute L=4M
276M=4416
M=4416/276=16
So the answer is $16
3 0
3 years ago
(q006) suppose you are a participant in an online forum where people review online games, and one participant recently posted an
andreyandreev [35.5K]

Suppose you are a participant in an online forum where people review online games, and one participant recently posted an angry rant in all caps, which elicited a harsh rebuke from several other users. Such a reprimand is a kind of informal social sanction.

The definition of a player is someone who takes component in something. An instance of a participant is someone dancing at a dance party. Sharing; collaborating; having a share of the part.

First of all, based on a focal point on film, over the past decade participant, has expanded to become a multi-platform content business enterprise, yearly producing up to six narrative function movies, six documentary movies, three episodic tv collections, and over 20 hours of virtual short-form programming.

Contributors are normally considered to be individuals or groups who agree to participate in a study's procedure. The settlement to take part in studies bestows duties on researchers to make certain that members are handled in a manner that conforms to universal moral standards.

Learn more about participants here brainly.com/question/2290843

#SPJ4

4 0
2 years ago
Please help asap! Due tonight!
Ugo [173]
The answer may be 10
5 0
2 years ago
Other questions:
  • 16. For quadrilateral ABCD, determine the most precise name for it. A(2,3), B (12,3), C(8,6) and D(5,6). Show your work and expl
    13·1 answer
  • Find x (picture included)
    7·1 answer
  • BRAINLIEST PLS HELP ASAP!!!
    10·1 answer
  • Help!!! and in terms of pi!! please
    14·1 answer
  • Javier bought 48 sports cards at a yard sale. Of the cards, 3/8 were baseball cards. How many cards were baseball cards?
    14·2 answers
  • Which surveys would a sample be appropriate for? Mark all that apply.
    11·2 answers
  • Apply the distributive property to create an equivalent expression<br><br> 7(4p + 2q +3r) =
    11·1 answer
  • Help me pls!!! 8th grade math. it’s due today ;-;
    15·1 answer
  • Can you simplify 41/24
    5·1 answer
  • No file answers or I will report you. Thanks!​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!