Mathematics College

Tom bought a pen for $30
and sold it to gain
20% on his cost price. How much money
did he gain?

Answers

Answer 1

Answer:

he gained 6 dollars

Step-by-step explanation:

30 x 0.2

Answer 2

Tom bought a pen for $30 and sold it to gain 20% on his cost price that he gained 6 dollars.

How to calculate unit price of something?

Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.

Thus, unit price of something is price of 1 thing.

Lets suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.

It is given that Tom bought a pen for $30 and sold it to gain 20% on his cost price.

Therefore,

30 x 20%

30 x 0.2 = 6 dollars

Thus, he gained 6 dollars.

Hence, Tom bought a pen for $30 and sold it to gain 20% on his cost price that he gained 6 dollars.

Learn more about unit price here:

https://brainly.com/question/945712

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Related Questions

Heather studied for 30 minutes several days in a row. Before her test, she also studied for 10 more minutes. The total amount of time she spent studying was 280 minutes. Write and solve an equation to determine how many days she studied. Let d represent the number of days.

Answers

Answer:

9 days

Step-by-step explanation:

280=30d+10

270=30d

9=d

A crafter is making a triangular flag. She has two sides of length 22 in and 36 in. What are the length possibilities for the third side?

Answers

Answer:

22 in.

Step-by-step explanation:

IN MY BRAIN

the answer is 58^2 because of pythagorean theorem


someone please help!!
and explain?
7. Factor each polynomial. (4 points: 2 points each)
A. x2 + 14x + 49
B. x2 – 16x + 64

Answers

A. (X+7)^2
B.(x-8)^2..............

What is the area of a triangle when b=10 and h=4 ?

Answers

HOPE THIS HELPS TO YOU

Which equation has no solution?
A.
4x - 9 = - 9
B.
x + 3x = 8x - 4x
C.
2x + 4 = 2x + 6
D.
3x + 2 = 17

Answers

C. 2x + 4 = 2x + 6 is the correct answer. It has no solution.

Use the scale factor to find the area of the enlarged figure. Explain your steps.


A small rectangle has a length of 8 and width of 4. A large rectangle has a length of 25.6 and width of a.

Answers

9514 1404 393

Answer:

  327.68 units^2

Step-by-step explanation:

The area of the small figure is ...

  area = length · width

  area = (8)(4) = 32 . . . . square units

The scale factor is ...

  scale factor = large length / small length = 25.6/8 = 3.2

The area of the larger rectangle will be the small rectangle area multiplied by the square of the scale factor:

  (32 units^2)(3.2^2) = 327.68 units^2

_____

Additional comment

We note the width is half the length, so we could figure the larger rectangle's width at 25.6/2 = 12.8 units. Then its area would be

  length · width = (25.6 units)(12.8 units) = 327.68 units^2

This seems easier to me, but is not the method required by the problem statement.

Answer:

The scale factor of the enlargement is 3.2. Square the scale factor to get 10.24. Find the area of the original figure, which is 32. Multiply 32 and 10.24 to get the area of the enlarged figure, which is 327.68.

Step-by-step explanation:

This is the sample response but I would use the other pearsons answer because it is NOT the sample response.

Have a great day!

PLEASE ANSWER THIS ASAP, I WILL BE GIVING YOU A THANKS!

Answers

Answer:

cccccccccccccccccccccc

Answer:

It is D.) Infinite Solutions

Step-by-step explanation:

0.5(10x + 6) = 2x + 3 + 3x

5x + 3 = 5x + 3

9.) Is the graph below line your nonlinear?

Answers

Answer:

Linear.

Step-by-step explanation:

A linear graph is any straight-line graph. That's a straight line.

Answer:

No

Step-by-step explanation:

This graph is not a non-linear line, in fact, it's a linear line. A non-linear line is a line that is not straight, a line that is curved. And as you can see in this graph, the line is straight which makes it a linear line.

Hope this helped!

Solve 2x + 2y = -28 2x - 2y = 26

Answers

Answer:

x=−y−14

Step-by-step explanation:

Answer:

x = none y = -27

Step-by-step explanation:

2x + 2y = -28 + 2x - 26

-2x                  -2x

__________________

2y = -28 - 26

2y = -54

y = -27

Which set of side lengths form a right triangle?
2 inches, 3 inches, 4 inches
6 inches, 8 inches, 10 inches
8 inches, 9 inches, 11 inches
10 inches, 12 inches, 13 inches

Answers

Answer:

It’s 10 inches, 12 inches, 13 inches

Step-by-step explanation:

How did I make this equivalent fraction?
1
3
JI
4
12.
4
Qual a equivalência da fração

Answers

Answer:

Both the numerator and denominator were multiplied by 4

Answer:

find a number that is divisible by both the denominator and the numerator

Step-by-step explanation:

divide 4/12 by 4, so you get 1/3

Substitute x=3y+1 into the expression-x -7 and simplify

Answers

Answer:

Step-by-step explanation:

x-7

3y+1-7

3y-6

What’s the height of the tree

Answers

I’m pretty sure it’s 132

The average weight of a mature human brain is approximately 1400 grams. What is the equivalent weight in pounds? Use the conversion equivalency 1 kilograms (kg) = 1000 grams (g) and 2.20 pounds (lb) = 1 kg.
a.
5.11 lb
b.
3.08 lb
c.
636 lb
d.
25.8 lb

Answers

the answer is b... 1400= 3.08

Please help me with this question

Answers

Answer:

3 x 3/4 = 9/4 = 2 1/4

7 x 3/8 =21/8 = 2 5/8

4 x 1/5 = 4/5

5x 2/3 = 10/3 = 3 1/3

Step-by-step explanation:

ANSWER:

3 x 3/4 = 9/4 = 2 1/4

7 x 3/8 = 21/8 = 2 5/8

4 x 1/5 = 4/5

5 x 2/3 = 10/3 = 3 1/3

Step-by-step explanation:

3 fifths equals how many 20

Answers

Answer:

12

Step-by-step explanation:

20/5 = 4

4 x 3= 12

3/5 of 20 is 12.

This is because 3/5*20/1=60/5 which reduces to 12.

A selfie ring light is originally priced at $55 is marked down 25%. What is the sale price?

Answers

Answer:

41.25

Step-by-step explanation:25% of 55 is 13.75

Find the missing side length in the right triangle below.

Answers

Answer:

69

Step-by-step explanation:

1. Dixie has a bag of coins. The bag contains 10
dimes, 1 nickels, and 4 penny. She will randomly
choose a coin from the bag. What is the probability
that Dixie will NOT choose a penny?
C.
15
15
A.
B.
D. Not Here
4
Please help me I give brainilest

Answers

Answer:

Its A 11/15

Step-by-step explanation:

There are 15 probabilities and 4 of them are pennies which you cant choose from that elimenates 4 possible outomes so subtract the 4 you get 11.

At a trout farm, most of the trout have a length of 23.5 cm. The length of some differ from this by as much as 2.1 cm. Write and solve an absolute-value inequality to find the range of lengths of the trout.

Answers

Answer:

21.4 ≤ x ≤ 25.6

Step-by-step explanation:

The absolute value of a number is the non-negative value of the number without regard to its sign.

The absolute value of a real number x (|x|) is x for x is positive and -x for x is negative.

Let x represent the length of the trout. Since most trout have a length of 23.5 cm and differ by 2.1 cm, then x can be represented by:

|x - 23.5| ≤ 2.1

x - 23.5 ≤ 2.1 or -(x - 23.5) ≤ 2.1

x ≤ 2.1 + 23.5 or x - 23.5 ≥ -2.1

x ≤ 25.6 or x ≥ 21.4

Hence, the range of lengths of the trout is 21.4 ≤ x ≤ 25.6

The graph of a proportional relationship is given along with an equation for a difference relationship. Which situation has a greater unit rate?
•A
• B
•C

Answers

Answer:

I think its C

Step-by-step explanation:

Answer:

its b

Step-by-step explanation:

yo welcome....

NANNIIII?!

You spin a spinner with four numbers on it, and flip a coin. Find the probability of the compound event.
The probability of spinning a 3 and flipping heads is:

Answers

Answer:

I think 4/7 but i'm not sure.

Step-by-step explanation:

Answer:

it's 3/4 not sure

Step-by-step explanation:

plz help me i need it done​

Answers

Answer:

Final answers are ,

• 9

•-7

• 7

• -85

Step-by-step explanation:

Given that when we input a number then first it will be multiplied by 2 and finally decreased by(-1) .

Input 5 :-

• Firstly Multiplying it by 2 → 2× 5 = 10

• Subtracting 1 from it → 10 - 1 = 9

Output = 9

====================================

Input (-3) :-

• Firstly Multiplying it by 2 → 2× -3 = -6

• Subtracting 1 from it → -6- 1 = (-7)

Output = (-7)

====================================

Input 4 :-

• Firstly Multiplying it by 2 → 2× 4 = 8

• Subtracting 1 from it → 8 - 1 = 7

Output = 7

====================================

Input (-42) :-

• Firstly Multiplying it by 2 → 2× -42 = -84

• Subtracting 1 from it → -84 - 1 = -85

Output = (-85)

====================================

Practice:
3. The table shows the attendances y(in thousands) at an amusement park from 2005 to
2014, where x = 0 presents the year 2005.
Year, x
Attendance, y
0
850
1
845
2
828
3
798
4
800
5
792
6
785
7
781
8 9
775 760
The equation of the line of best fit is:
a
Interpolation: Approximate the year with b. Extrapolation: Predict the attendance at
an attendance of 770,000 people.
the amusement park in 2017.

Answers

omg that was hard I see that in my module to

Evaluate 16/9 -2/9
4 2/3
2 2/3
1 5/9
2 4/9

Answers

Answer: C, 1 5/9

Step-by-step explanation:

16/9 - 2\9

= 14/9

= 14 ÷ 9

= 14/9 = 1 5/9

= 16/9 ÷ 2/9= 1 5/9

0.9b + 12 = 0.8b - 9​

Answers

Answer:

0.9b+12=0.8b-9

0.9b+0.8b= -9-9

1.7b=-21

=-12.352

jester has a piece of wood measuring 1 and 2/3 m.he needs to cut in pieces measuring 3/4 m long.how many pieces of wood did jester cut​

Answers

Answer:

2 pieces

Step-by-step explanation:

Given

[tex]Length = 1\frac{2}{3}m[/tex]

[tex]Pieces = \frac{3}{4}m[/tex]

Required

Calculate the number of pieces

To do this, we have to divide the length of the wood by the length of each piece.

Represent this with x

[tex]x= \frac{Length}{Pieces}[/tex]

[tex]x= 1\frac{2}{3}/\frac{3}{4}[/tex]

Convert mixed numbers to improper fraction

[tex]x= \frac{5}{3}/\frac{3}{4}[/tex]

Change division to multiplication

[tex]x= \frac{5}{3}*\frac{4}{3}[/tex]

[tex]x= \frac{20}{9}[/tex]

[tex]x = 2.22[/tex]

[tex]x = 2[/tex]

find the slope thanks ​

Answers

Answer:

Hello! Just here so the other person can get brainliest. I will do the same for the other questions.

Step-by-step explanation:

4x-5+2r= -11

What is the value of x?

Answers

It would be 2x+r=-3

Hope this helps

Have a great day/night

Noah was assigned to make 64 cookies for the bake sale. He made 25% MORE than that. How many cookies did Noah make? Explain how you got your answer.



PLEASE HELP MEH! WILL MARK BRAINLIEST!! DUE TODAY

Answers

Answer:

8 cookies were left after the bake sale. 72 were sold.

Step-by-step explanation:

64*1.25= 80

80*.9= 72

8

125% of 64 is equal to 80.

90% of 80 is equal to 72.

The number left was 10% of the number he made. The number he made was 125% of 64, so the number left was 8

 10% × 125% × 64 = 0.125 × 64 = 8

thats all i could really come up with at the top of my head

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