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
Tcecarenko [31]
2 years ago
7

John had $20. He earned $5, spent $10, earned $5 again, and then spent $3. After this series of earnings and expenses, how much

money did he owe or have left?
Mathematics
1 answer:
masya89 [10]2 years ago
6 0

Answer:

$17

Step-by-step explanation:

So first

The total money John have is $20

then he earned $5 which means $20+$5 = $25

After that he spent $10 = $25- $10 = $15

Again earned $5 = $15+$5=$20

At last spent $3 = $20-$3=$17

Hence the total money he owe or have left is $17

You might be interested in
Can someone help me with this?Can someone help me with this!!!
Elenna [48]

Answer: first fish is -4 and the other is -3

-3 is greater

Step-by-step explanation:

I big brain pls mark brainliest

6 0
2 years ago
Read 2 more answers
Lena is going to cover her entire garden with topsoil. The garden is 36 feet long by 22 feet wide. A bag of topsoil costs $3 and
Lana71 [14]
22x36= ?ft
? divided by 300 if it isn't exact round down to the nearest whole number... after you do that how ever many times 300 went into ? times that by $3 and there's your answer
Hope i helped ;)
3 0
3 years ago
Dawn is selling her MP3 player for 3/4 of the original price. The original price for the MP3 player was $40. How much is she sel
IRISSAK [1]

Answer:

$30

Step-by-step explanation:

Have a Nice Day! :D

3 0
3 years ago
Read 2 more answers
PLEASE HELPPPPP i´ll give brainliest
Vinvika [58]

Answer:

1. 7^{2}

2. (-3)^{5}

3. 4

4. k^{6}

5. p^{6}

6. 3^{2}

7. (-a)^{4}

8. 6^{4}

9. 9^{3}

10. 4y(z^{3} )

11. r^{4}tu^{2}

12. 5^{3}q^{2}

13. 8^{2}c^{4}d^{3}

14. -w^{2} v^{5}

15. b^{9}

16. 10^{3} -2^{3} m^{3}

Hope this helps.

4 0
3 years ago
1. [5 pt.] For each of the following variables about students in RBS, determine whether the variable is categorical or numerical
Ksju [112]

Answer:

(a) <u>City where a student was born </u>

Categorical nominal scale

(b) <u>Absolute distance between a student’s home and a stat. classroom </u>

Numerical ratio scale

(c) <u>Current account balance of a student’s checking bank account (considering debt/loan) </u>

Numerical ratio scale

(d) <u>Number of credit cards that a student has </u>

Numerical discrete interval scale

(e) <u>Floor level on which a student spent time the most during the last semester </u>

Categorical ordinal scale

Step-by-step explanation:

Let's recall the concepts first:

<h3>Categorical variable </h3>

Is a variable that can take one value from a limited set of choices, for example “blood type (A+, AB-,etc)”, “hair color (black, red, etc)”, “country of origin”, “level of instruction (elementary, high school, college, etc)”  

  • <em><u>The categorical variable is measured in a nominal scale</u></em> if there is no intrinsic order in the variable, for example if the variable is “gender”, there is no intrinsic reason to think that “male” comes before “female” or vice versa.  
  • <em><u>The categorical variable is measured in an ordinal scale</u></em> if there is some intrinsic order in the values. For example if the variable is “level of instruction” we can order it from less to high (elementary, high school, college graduate, masters degree, PhD degree) or from high to low.
<h3>Numerical variable </h3>

As the name suggests is a variable that can take numerical values, for example “height”, “weight”, “number of people who smoke in Minnesota”

  • <em><u>The numerical variable is discrete</u></em> if it only takes inter values, for example “number of flights that land to JFK airport every day”
  • <em><u>The numerical variable is continuous</u></em> if it can take either integer or non integer values, for example “distance between to points in the plane”
  • <em><u>The numerical variable is measured in an interval scale</u></em> if we can determine both the order and difference between the two numbers but the ratio of the values is meaningless. For example if the variable is “year of birth” 1957 and 2001 would be two instances of the variable but 1957/2001 or 2001/1957 are meaningless.  
  • <em><u>The numerical variable is measured in a ratio scale</u></em> if we can determine both the order and difference between the two numbers and the ratio of the values is meaningful. For example if you have two salaries, let's say A=$60,500 and B=$90,750, the ratio 90,750/60,500 =1.5 is meaningful because is telling us that salary B is 50% greater than A.

Once we have these concepts clear, we can determine the type of variable of the problem

(a) <em>City where a student was born </em>

Categorical nominal scale

(b) <em>Absolute distance between a student’s home and a stat. classroom </em>

<em>Numerical ratio scale </em>

(c) <em>Current account balance of a student’s checking bank account (considering debt/loan) </em>

Numerical ratio scale

(d) <em>Number of credit cards that a student has </em>

Numerical discrete interval scale

(e)<em> Floor level on which a student spent time the most during the last semester </em>

Categorical ordinal scale

6 0
3 years ago
Other questions:
  • Which expression is equivalent to 2(3g-4) - (8g +3)
    5·1 answer
  • PLEASE ANSWER ASAP! YOUR ANSWER MUST CONTAIN AN EXPLANATION IN ORDER TO RECEIVE POINTS AND THE BRAINLIEST ANSWER!!! THANKS!!!
    9·1 answer
  • A fraction reduces to 36 if its numerator is (6x)^5 what is it’s denominator
    10·1 answer
  • How do I solve 3|x+10|=6
    11·1 answer
  • Complete the sentence 0,5,1,6,2,7 _,_
    9·1 answer
  • Can some help me with this. You have to show your work. 16-19
    7·1 answer
  • X^2+3x-24=<br> x <br> 2<br> +3x−24=<br> \,\,3x+1<br> 3x+1
    15·1 answer
  • Helpp il mark u as Brainlist​
    14·2 answers
  • Amplitude of y=-2 sinx
    6·1 answer
  • 10.In Star School, the ratio of students who bring
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!