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
Ray Of Light [21]
3 years ago
12

Dustin bought 9 pencils. Some of the pencils were green and cost $0.90 each. The remainder of the pencils were purple and cost $

0.65 each. If Dustin paid $7.10 for all of the pencils, how many green pencils did he buy?
Mathematics
1 answer:
Talja [164]3 years ago
8 0

Answer: he bought 5 green pencils

Step-by-step explanation:

Let x represent the number of green pencils that Dustin bought.

Dustin bought 9 pencils. The remainder of the pencils were purple. This means that the number of purple pencils that he bought is 9 - x

Some of the pencils were green and cost $0.90 each. The remainder of the pencils were purple and cost $0.65 each. If Dustin paid $7.10 for all of the pencils, it means that

0.9x + 0.65(9 - x) = 7.1

0.9x + 5.85 - 0.65x = 7.1

0.9x - 0.65x = 7.1 - 5.85

0.25x = 1.25

x = 1.25/0.25

x = 5

You might be interested in
X is less than or equal to 2 Write in interval notation.
Talja [164]
X is less than -2, so -2 is our largest value of the interval, so it goes on the right. Since there is no lower endpoint (it is ALL values less than -2), we put the negative infinity symbol on the left side. The curved end on -2 indicates an open interval
3 0
3 years ago
Use base ten blocks to solve 53/4
Crazy boy [7]
if you have base ten blocks you can figure out the answer
6 0
3 years ago
Quick help.<br> Will Mark as Brainliest if my laptop stops acting up.
Dimas [21]
Vertex is now at (-1,5)

for
y=a(x-h)^2+k
vertex is (h,k)
so veertex is (-1,5)

y=a(x-(-1))^2+5
y=a(x+1)^2+5
a is a constant, we will asssume that it is 1 because all the choices have 1

y=1(x+1)^2+5
y=(x+1)^2+5

2nd option
8 0
3 years ago
9-g&gt;3;g=5<br> Solution of the inequality
NARA [144]
<span><span>9−5</span>>3</span><span><span>4></span>3

</span><span>True hope i helped</span>
8 0
3 years ago
What set of reflections would carry rhombus ABCD onto itself? Rhombus ABCD is shown. A is at 0, 2. B is at 1, 2. C is at 2, 4. D
lakkis [162]
What are your answer possibilities?
4 0
3 years ago
Read 2 more answers
Other questions:
  • In the diagram, AB = 10 and AC = 2√10. What is the perimeter of △ABC?
    10·1 answer
  • How does the suffix help you understand the meaning of announcement
    15·1 answer
  • Suppose that 10 people, including you and a friend, line up for a group picture. How many ways can the photographer rearrange th
    11·1 answer
  • Tell whether the sequence is arithmetic. If it is, identify the common difference and write the explicit formula. Please show de
    12·1 answer
  • What’s the question mark
    8·2 answers
  • The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of
    11·1 answer
  • At the beginning of a snowstorm, Nathaniel had 5 inches of snow on his lawn.
    14·2 answers
  • Convert 6 4/5 to an improper fraction.
    13·1 answer
  • Fill in the blank:<br><br> I’m diamond, you know I glow up,<br> Hey, so let’s go<br> _______________
    8·2 answers
  • Jessica is stacking items on a shelf she has large books that weigh 5 pounds each and medium books that weigh 3 pounds each. The
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!