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
asambeis [7]
3 years ago
9

(a) Tom says that 1/5 + 7/20 = 8/25

Mathematics
2 answers:
mezya [45]3 years ago
7 0

numerator = top part of the fraction

denominator = bottom part of the fraction

* means multiply

a.

you can only add the numerator when the denominator is the same

cant add the denominator

denominator has to be the same

1/5 = 4/20

4/20 + 7/20 = 11/20

b.

1 7/8 = 15/8

3/4 ÷ 15/8 =

3/4 * 8/15 =

24/60 = divide both top and bottom by 12 =

2/5

maks197457 [2]3 years ago
4 0

Step-by-step explanation:

a)1/5+ 7/20

1.find the CM of both denominators

2.multiply both the denominator and the numerator using the CM

=(1/5)×20 +(7/20)

=20/100 +35/100

since you multiply

3.Now add both numerators ( don't add the denominators)

=the answer is 55/100

You might be interested in
Convert 0.34285714285 into an improper fraction
Stolb23 [73]

Answer:

34285714285/100000000000

Step-by-step explanation:

To write 0.34285714285 as a fraction you have to write 0.34285714285 as the numerator and put 1 as the denominator. Now you multiply the numerator and denominator by a number that makes the numerator to a whole number.

And finally, we have:

0.34285714285 as a fraction equals 34285714285/100000000000

5 0
3 years ago
If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A U B?
Phoenix [80]

Answer:

Answer is A U B = {3,5,7}

3 0
3 years ago
Given: cos α = 4/5, sin β= 4/5, and α and β are both in quadrant 1. find sin (α+β)
mezya [45]
We have the formula (sin x)^2 + (cos x)^2 = 1;
Then, sin α = \sqrt{1-  ( \frac{4}{5}) ^{2} } =  \frac{3}{5} ;
cos β = \sqrt{1- ( \frac{4}{5}) ^{2} } = \frac{3}{5} ;
We apply the formula sin ( α + β ) = sin α x cos β + sin β x cos α = (3/5)x(4/5) + (4/5)x(3/5) = 12/25 + 12/25 = 24/25;
8 0
3 years ago
What is the measure of x
meriva

Answer:

whats the answer choices brainly

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
A soccer ball has a 35 cm diameter. what is the volume of the contents of the ?
Anettt [7]

Answer:

To calculate the volume of a sphere, use the formula v = ⁴⁄₃πr³, where r is the radius of the sphere. If you don't have the radius, you can find it by dividing the diameter by 2. Once you have the radius, plug it into the formula and solve to find the volume.

Step-by-step explanation:

To find the volume of a soccer ball,the formula is V=4/3 πr^3,where r is the radius and π=3.14. A regulation soccer ball has a radius of 35cm. find the volume of a soccer ball to the nearest cubic centimeter. This is just some to keep in mind.

4 0
3 years ago
Read 2 more answers
Other questions:
  • You have automatic deposit of your monthly paycheck which, after normal expenses, maintains your balance of $6,350 in your check
    11·1 answer
  • Please, I really need help with this! What is the volume of this cone?
    5·1 answer
  • Stefa's family driving across the country. They have already traveled 1700 miles of the 2200 trip.how much farther do they need
    11·1 answer
  • What is the approximate length of arc s on the circle below? use 3.14 for . round your answer to the nearest tenth. 14.1 in. 22.
    15·2 answers
  • Experts please please PLEASE ANSWER. Due today!! Thank you in advance, and remember to wash your hands with antibacterial soap f
    5·1 answer
  • The local high school is having a talent show. On Monday they sale 5 children tickets and 3 adult tickets for $25 On Tuesday the
    7·1 answer
  • Find the missing dimension of the cylinder. Round your answer to the nearest hundredth.
    5·1 answer
  • The Atlanta Journal Constitution conducted a survey of 900 registered voters to determine which voting method they prefer. The A
    9·1 answer
  • Help!!!!!!!!!!!!!!!!
    8·2 answers
  • I CANT FOCUS ON THIS QUESTION CUZ ALL OF MY SEROTONIN IS FOR MY NEW DOG PLEASE NO FILES THIS TIME.​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!