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
pashok25 [27]
3 years ago
11

You had $21 to spend on three pens .After buying them you had $12 how much did each pen cost

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
7 0
I thinks it’s 3 because 21-12=9 so you spent 9 dollars 9/3=3
You might be interested in
The perimeter of a square is 36 feet. If you increase the length by 3 feet and decrease the width
Rufina [12.5K]

Answer:

84 feet

Step-by-step explanation:

If the perimeter is 36 feet, and all the sides are the same length, then all the sides are 9. if we increase the length by 3 feet and decrease the width  by 2 feet then we are left with 12 * 7 = 84

4 0
3 years ago
Find mMK................
Gnesinka [82]

Answer:

Approximately mMK is 53 degrees

Step-by-step explanation:

Here, we want to find the length of MK

As we can see, we have a right triangle at LNK

so

let us find the angle at L first

9 is adjacent to the angle at L and also, 15 is the hypotenuse of the angle at L

so the trigonometric identity that connects adjacent to the hypotenuse is the cosine

It is the ratio of the adjacent to the hypotenuse

So;

cos L = 9/15

L = arc cos (9/15)

L = 53.13 degree

Approximately, L = 53 degrees

so now, we want to get the arc length MK

We are to use the angle-arc relationship here

Using this; arc length MK is equal to the measure of L at the center which is 53 degrees

3 0
2 years ago
What is the value of the expression below when x equals 5?<br><br> 16 + 10x
Inessa05 [86]

Answer:

66

Step-by-step explanation:

Plug in 5 for x

16 + 10(5)

16 + 50 = 66

3 0
3 years ago
Read 2 more answers
Solve by elimination 6x-5y=27 3x+10y=-24
Anna [14]

Answer:

point form: (-34/3, -19)

equation form: X= - 34/3, Y = -19

4 0
3 years ago
Colin invests £4000 into his bank account. He receives 5% per year simple interest. How much will Colin have after 3 years? Give
MakcuM [25]

Answer:

2750

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Use the elimination method to solve the system of equations. <br><br> 3x+4y=8<br> X-Y=12
    9·2 answers
  • Mr. Boyle replaced 25% of the boards on his wooden deck. If he replaced
    11·2 answers
  • What are two different ways for finding the area of the shaded region. All angles are right angles.
    10·2 answers
  • HELP Geometry can someone help
    11·1 answer
  • CAN SOMEONE PLEASE HELP ME???
    8·2 answers
  • What is the volume of the right rectangular prism, in cubic inches?
    13·2 answers
  • what is the least to greatest in 3/4,3/10,2/5, 7/10? please break it down for me so I can explain it to a 9 yr. old
    12·1 answer
  • Find angle Picture below
    6·1 answer
  • Determine the range of the inverse of f(x) = 2x + 1
    7·2 answers
  • The Juice Cafe posted the sign below showing the prices of smoothies of various sizes.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!