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
Vedmedyk [2.9K]
3 years ago
5

A and b are rational numbers. The difference between a and b is

Mathematics
1 answer:
algol [13]3 years ago
4 0

Answer:

Step-by-step explanation:

If a and b are rational and b is not zero, then a/b is also rational. Indeed, if a=m/n and b=p/q, where m,n,p, and q are integers, then a/b=mq/pn, i.e. it is also a ratio of two integers, and is therefore rational.

You might be interested in
Please Help. I will give brainlest to the person who answers this questions right
bija089 [108]
By my calculations and understanding into this problem I have figured out the answer to this thing and it is very simple and easy enough to actually say it so I can type it out instead because I can’t say anything on this thing even though I’m doing a voice record and I don’t even know how my grandma is doing right now so I’m just blah bling around is it random words of mine but honestly I would love to explain and tell you the answer but I do not know how to type it out so I’m just going to say it like I just said two seconds ago but I didn’t really say it again I just typed it I don’t know I keep getting confused with that but anyways the answer is very easy
3 0
3 years ago
The ratio of boys to girls in Jamal's class is 3:2. If four more girls join the class, there will be the same number of boys and
olchik [2.2K]

Answer:

12 boys

Step-by-step explanation:

From the above question:

Number of boys = 3

Number of girls = 2

Boys: Girls

3:2

Let :

a = boys

b = girls

Hence, a : b = 3 : 2

a/b = 3/2  

Cross Multiply

2a = 3b .......... Equation 1

a = 3b/2

If four more girls join the class, there will be the same number of boys and girls

Hence,

a: b + 4 = 3 : 3

a/b + 4 = 3/3

Cross Multiply

3a = 3(b + 4)

3a = 3b + 12 ........ Equation (2)

From Equation 1: a = 3b/2

Substitute 3b/2 for a in Equation 2 we have:

3a = 3b + 12 .........Equation 2

3(3b/2) = 3b + 12

9b/2 = 3b + 12

Cross Multiply

9b = 2(3b + 12)

9b= 6b + 24

9b - 6b = 24

3b = 24

b = 8

Substitute 8 for b in Equation 1

a = 3b/2

a = 3 × 8/2

a = 24/2

a = 12

Therefore, the number of boys in the class is 12

7 0
3 years ago
75% of what number is 45? <br><br> A:15<br> B:30<br> C:45<br> D:60
jarptica [38.1K]

Answer:

D. 60= 100 % therefore, 45 would equal 75 %.The answers D. Hope this helps!

Step-by-step explanation:

5 0
3 years ago
A group of three friends order a combo meal which includes two slices of pizza and a drink. Each drink is priced at $2.50. If th
Fittoniya [83]

Answer:

Step-by-step explanation:

2.5(3)

31.5-(2.5*3)

31.5-7.5

24/3=8

$8 per slice

6 0
3 years ago
Divide. Write your answer in simplest form. 1/9 divided 5/4?
timofeeve [1]

Answer: 4/45

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone solve for x?
    11·1 answer
  • Booneville Middle School spends $22 for every workbook it buys. At most how many
    8·1 answer
  • The mean age when smokers first start is 13 years old with a population standard deviation of 2 years. A researcher thinks that
    15·1 answer
  • Is the following statement true or false? A line is one-dimensional.
    7·1 answer
  • Simplify. Assume that no denominator is equal to zero. (2a/a^2) ^-3
    6·1 answer
  • (01.04 MC)What is the sign of the product (−2)(4)(−6)(−3)?
    15·1 answer
  • Genevieve wants to verify that }(5x-20)-(4x-8) is equivalent to x. Which procedure can Genevieve follow to determine if
    15·2 answers
  • What the answer to this
    6·1 answer
  • What is the length of BC? Round to the nearest tenth.
    9·2 answers
  • Here is my question.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!