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
Misha Larkins [42]
3 years ago
11

Write the equation for the word problem and solve. You bought a magazine for $5 and four erasers. You spent a total of $25. How

much did each eraser cost?​
Mathematics
1 answer:
nikitadnepr [17]3 years ago
7 0

Answer: each eraser cost 5 dollors                

Step-by-step explanation: Simplifying

25 = 5 + 4e

Solving

25 = 5 + 4e

Solving for variable 'e'.

Move all terms containing e to the left, all other terms to the right.

Add '-4e' to each side of the equation.

25 + -4e = 5 + 4e + -4e

Combine like terms: 4e + -4e = 0

25 + -4e = 5 + 0

25 + -4e = 5

Add '-25' to each side of the equation.

25 + -25 + -4e = 5 + -25

Combine like terms: 25 + -25 = 0

0 + -4e = 5 + -25

-4e = 5 + -25

Combine like terms: 5 + -25 = -20

-4e = -20

Divide each side by '-4'.

e = 5

Simplifying

e = 5

You might be interested in
Determine if the lines are parallel, perpendicular, neither or the same line: 3x + 2y = 1 and y = -x - 1.
Svetradugi [14.3K]

Answer:

Neither

Step-by-step explanation:

When you rearrange the equation 3x+2y=1 in the form of y=mx+c

you get:

2y=-3x+1

y=-\frac{3}{2} x+0.5

And if you compare it with the equation y= -x -1

You can see that the gradient is not the same, so it means it is not parallel.

To get if it is perpendicular you need to see if the two gradients multiply to give the value -1 but when you multiply

-\frac{3}{2}×-1= 3/2 so it is not perpendicular as well

I hope it is right, feel free to point out anything wrong or you're unsure of :)

3 0
3 years ago
Read 2 more answers
Can some one please help me with these five questions
valina [46]

Answer:

1)PT = 21 units

2)Option D

3)Option A

4)∠EFG = 2(24) +15 = 63 degrees

∠GFH= 4(24) +21 = 117 degrees

5) circumference = 21.98 cm

Step-by-step explanation:

1) As the T is midpoint, PT is equal to TQ in magnitude.

  Thus, 4x+1=6x-9

 2x = 10

x=5.

Thus, PT = 4(5) + 1 = 21

2) The planes XTS and VRS intersect in the line SW, and the intersection is perpendicular.

3)For a line to be defined, it must have 2 points, start and end.

  The option A) is not defined properly, so incorrect

4)As the angles are linear pair, their sum is 180 degrees.

Thus, 2n+15+4n+21 = 180

6n = 144

n = \frac{144}{6} = 24

∠EFG = 2(24) +15 = 63 degrees

∠GFH= 4(24) +21 = 117 degrees

5) diameter = 7 cm

radius = 3.5 cm

circumference = 2\pi R = 2\pi (3.5) = 2(3.14)(3.5) = 21.98 cm

8 0
3 years ago
Juan bought a laptop for 650 and a power adapter for 59 if the sales tax rate is 6% what was the total tax that juan paid
Karolina [17]
Laptop's sale tax
=6/100 x 650
=39


Power adapter's sale tax
=6/100 x 59
=3.54

Total Sales tax=
39+3.54
=42.54
8 0
3 years ago
The line r represents f(x)=x-4/3.therefore,the line that represents f^-1 is ___ and f^-1(x)=____ x+____.
vovangra [49]

Answer:

connect y to x which is going to give you -4 than add -1 to it -5 and doint forget   5 p so you answer is -5p.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How many solutions exist for |1/2x + 1| = 5?
swat32

Answer:

Two, 8 and -12

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Answer the following questions about slope and y-intercept.
    6·1 answer
  • What is the difference between inscribed angle and the central angle?
    8·2 answers
  • Solve log 2x + log 12 =3 can
    12·1 answer
  • PLEASE HELP ME!!!!
    10·1 answer
  • 1) 130 words in 5 mins. How many words in an hour?
    9·1 answer
  • Which set of ordered pairs does not describe a function?
    11·1 answer
  • Paragraph Finding the part, percent, and the whole Styles 1) Sixteen students in the school band play clarinet. Clarinet players
    6·1 answer
  • Pre-Test
    14·1 answer
  • 4/7+1/3 = Enter your answer as a fraction in simplest form by filling in the boxes.
    11·1 answer
  • 13. Find the surface area of the triangular prism shown.​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!