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
Ede4ka [16]
3 years ago
9

30 pens cost $12.50. how much is 75 pens cost

Mathematics
1 answer:
Mice21 [21]3 years ago
5 0

Answer:$31.25

Step-by-step explanation:

$12.50/30=$.42each*75=$31.25

You might be interested in
If the length of a rectangle is 5 m more than its width find the values of length and width if the area of a rectangle is 500 m²
astra-53 [7]

Answer:

Length of the rectangle  =25

width of the rectangle  = 20

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Let 'x' be the width of the rectangle

Given that the length of a rectangle is 5 m more than its width

Given that Area of the rectangle = 500m²

length of a rectangle = x +5

width of a rectangle = x

<u><em>Step(ii):-</em></u>

Area of the rectangle = length × width

             500 = x ( x+5)

          x² + 5 x = 500

      ⇒  x² + 5 x - 500 =0

      ⇒  x² +25x - 20 x - 500 =0

    ⇒  x( x+25) -20(x+25) =0

  ⇒  (x-20)(x+25) =0

 ⇒  x =20 and x=-25

we can choose x =20

<u><em>Step(iii):-</em></u>

Length of the rectangle = x +5 = 20 +5 =25

width of the rectangle  = 20

<u><em>Final answer</em></u>:-

Length of the rectangle  =25

width of the rectangle  = 20

3 0
3 years ago
What is the slope of the line parallel to y= 5x+2.<br><br> A. -1/5<br> B. -5<br> C. 5<br> D. 1/5
oee [108]

Answer:

slope = 5

Step-by-step explanation:

Parallel lines have the same slope

Equation: y = mx + b

So, slope m = 5

6 0
3 years ago
The American Airlines Stock Drop $12 in 6 hours . how much money did it drop per hour ?
Arisa [49]

Answer:

$2 per hour

Step-by-step explanation:

12 / 6 = 2

7 0
2 years ago
Read 2 more answers
Hurryyyyyy!!! <br>which expression is equivalent to 7(1+3)? <br>a.1+21<br>b.7+21<br>c 7+3<br>d.7+4
n200080 [17]

Answer:

b. 7+21

Step-by-step explanation:

If you do 1+3=4 and then 4 times 7 that equals 28. When you do 7+21 that equals 28 too. So b is the answer

4 0
3 years ago
If a diameter is 12.5 cm, what is the radius?
Jlenok [28]

Answer:

6.25

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • What is the mixed numbe 4 3/4 multiplied by 2
    11·2 answers
  • 21. Mike deposited $700 in his savings account and it earned $39.90 in simple interest over 3 years. Find the simple
    7·2 answers
  • Which of the following rational numbers is greater than 5/17 but less than 6/17.
    8·1 answer
  • MZYX=pi/3 radians. Covert this radian measure to its equivalent degree measure.
    7·1 answer
  • Softball A high school softball diamond is a square. The distance from base to base is 60 ft. To the nearest foot, how far does
    6·1 answer
  • Thirty-six members of the middle school choir, or 30% participated in the regional contest, as shown in the model below.
    10·1 answer
  • Y=6x-3<br> Initial value:
    7·1 answer
  • Plz help with algebra! 50 POINTS + BRAINLIEST! random answers will be reported.
    6·2 answers
  • HELP PLZ HELP ASAP ASAP
    5·2 answers
  • Piper works in a department store selling clothing. She makes a guaranteed salary of $250 per week, but is paid a commision on t
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!