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
hoa [83]
3 years ago
13

Anna buys 12 pens and 20 pencils for a total cost of $16. One pen costs $0.40 more than a pencil. What would one pencil and one

pen cost?
Mathematics
1 answer:
vladimir2022 [97]3 years ago
3 0

It is given in the question that

Anna buys 12 pens and 20 pencils for a total cost of $16. One pen costs $0.40 more than a pencil.

Let the cost of pencil is $ x .

Therefore cost of pen is

$(x+0.40)

According to the question

12(x+0.40)+20x =16

Distributing 12 and combining like terms, we will get

12x+4.8+20x=16\\32x = 11.2\\x = 0.35

Therefore cost of pencil is $0.35 and cost of pen is

0.35+0.40=0.75

You might be interested in
10) A wheelchair ramp is getting built at the entrance of a building. The ramp will be 25 feet long from front
mezya [45]

Answer:

The angle complies with the state regulations.

Step-by-step explanation:

The angle of elevation is the angle \theta in the figure, and from trigonometry we find that

sin(\theta) = \dfrac{1.5ft}{25ft}

taking the inverse sine of both sides we get

\theta = sin^{-1}(\dfrac{1.5ft}{25ft})

which gives

\theta = 3.44^o

which is less than 5°, and therefore is well within the state regulations.

3 0
3 years ago
What is the difference in the range of temperature between the two years
REY [17]
Send a picture so i can answer it
3 0
3 years ago
Write an exponential function for the graph that passes through the points (0,4) and (2, 36). Use the formula y=ab^x​
fomenos

Answer:

Using the equation y = abx , substitute both of your given points into that equation.

2 = ab2 and 4 = ab3   Solve each equation for a.

2⁄b2    and 4⁄b3 = a     Therefore, 2⁄b2 = 4⁄b3

                                   

Cross multiply: 2b3 = 4b2     Divide both sides by b2

2b = 4      a = 2/4 = 1/2

b = 2

y = 1 (2)x

     2

Step-by-step explanation:

3 0
3 years ago
X-2y=4 in slope intercept form
Yuliya22 [10]

Answer:

y = 1/2x - 2

Step-by-step explanation:

Slope intercept form:

y = mx + b

x - 2y = 4

-2y = -x + 4

2y = x - 4

y = 1/2x - 2

8 0
3 years ago
Read 2 more answers
What is the common difference between successive terms in the sequence?
Zarrin [17]
Depending on the way you look at the numbers, they are increasing/decreasing by 0.1.

0.36- 0.1 =0.26
0.26-0.1=0.16
0.16-0.1=0.06
0.06-0.1=-0.04
-0.04-0.1=-0.14
(Or vice versa by adding 0.1 starting with -0.14)

Make sense?
5 0
3 years ago
Other questions:
  • Help me please I don’t get it
    10·2 answers
  • A map measuring 60 cm by 25 cm is reduced twice in the ratio 3:5. Calculate the final dimensions of the map.
    12·1 answer
  • A 20° sector in a circle has an area of 684 yd2.
    14·1 answer
  • The bank charged TENLEY $30 fee because her balance dropped below $0. She knows that she currently has an outstanding charge of
    9·1 answer
  • 5.3N + 7.25 = 70.85 what is N
    8·2 answers
  • Choose True or False for each statement.
    14·1 answer
  • Pls answer and you will be blessed :)
    11·2 answers
  • What is the side length of square A?
    15·1 answer
  • Solving Equations by Adding or Subtracting Fractions<br> Show all working<br> n + 23 = 19
    10·1 answer
  • The ratio of angle measures is 1.2.2. Classify the triangle by its angle measures.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!