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
fgiga [73]
3 years ago
10

5/7 x 21/25 what is the answer to this???!!?!?!!!?

Mathematics
1 answer:
lbvjy [14]3 years ago
5 0
Multiply the tops and multiply the bottoms
Aka
5*21
-------
7*25

And simplify
You might be interested in
Least to greatest. 5 1/2,5 1/4,5 2/3,5 3/8. Please help
Ostrovityanka [42]
5 1/4, 5 3/8, 5 1/2, and 5 2/3
4 0
3 years ago
Read 2 more answers
Find the point of intersection (if any) of the following pairs of lines: a) x – 2y +1=0 2x + 3y – 7 = 0 b) x-2y+11=0 -x+2y-13 =
pychu [463]

Answer:

a) (11/7, 9/7)

b) There's no point of intersection

Step-by-step explanation:

a) x - 2y + 1 = 0

2x + 3y - 7 = 0

To find the point of intersection, we need to solve the system of equations  and the result will be the point of intersection (x,y)

x-2y+1=0\\x= 2y-1

Now we substitute x in the second equation:

2x+3y-7=0\\2(2y-1)+3y-7=0\\4y-2+3y-7=0\\7y-9=0\\y=9/7

Now we substitute y in our first equation.

x-2y+1=0\\x-2(9/7)+1=0\\x-18/7+1=0\\x=18/7-1\\x=11/7.

The point of intersection is (11/7, 9/7)

b) x -2y +11 =0

-x + 2y - 13 =0

We are going to follow the same procedure:

x-2y+11=0\\x=2y-11

-(2y-11)+2y-13=0\\-2y+11+2y-13=0\\0y=2\\0=2

Since this system of equations doesn't have a solution, the system has no point of intersection.

5 0
3 years ago
Prove that 25^11−5^19 is divisible by 31.
SCORPION-xisa [38]

Answer:

Divisible by 3 is the answer

Step-by-step explanation:

First get everything to have the same base of 5

25^11 - 5^19

(5^2)^11 - 5^19

5^(2*11) - 5^19

5^22 - 5^19

Now factor out the GCF 5^19 to get

5^22 - 5^19

5^(19+3) - 5^(19+0)

5^19*5^3 - 5^19*5^0

5^19(5^3 - 5^0)

5^19(125 - 1)

5^19*(124)

At this point, we factor the 124 into 31*4 to end up with this full factorization: 5^19*31*4

Therefore, 25^11 - 5^19 is equivalent to 5^19*31*4

Since 31 is a factor of the original expression, this means the original expression is divisible by 31.

4 0
3 years ago
Sandile bought 58 pies, each pie cost R68 each. estimate the total price of the pies..​
podryga [215]
Answer: 3944
All you have to do is multiply 58 x 68 to get the answer.
( hope this helped! )

5 0
2 years ago
How do you do this equation?​
WITCHER [35]

<h2>Answer:</h2><h2>15/4y²</h2><h2>Steps:</h2>

5y^2×3/4

calculate:

15/4y^2

alternate form:

3.75y²

5 0
3 years ago
Other questions:
  • The manager of a sporting goods store ordered 256 packages of football cards to be shipped to the store there are 24 cards in ea
    7·2 answers
  • Please help me!! Thanks !!
    12·1 answer
  • Afire hydrant that is 2 3/4 feet tall casts a shadow that 2 feet long. Find the length of the shadow cast by a nearby 154-foot t
    6·1 answer
  • Taylin buys 5 ounces of tea leaves for $2.35. At this rate,how much money does she need to buy 12 ounces of tea leaves?​
    13·2 answers
  • A line passes through the origin and has a slope of 1/2.
    15·2 answers
  • Please help me to solve it
    15·1 answer
  • Glen buys four tickets for a concert. Each ticket costs £54 Glen also has to pay a booking fee.
    10·2 answers
  • In a group of 20 there are 7 boys what is the ratio of girls to boys?​
    11·1 answer
  • Pls somone help me plssss
    7·1 answer
  • You earn $15 per hour to babysit. After babysitting for 3 hours, you will earn $50. Write an equation to represent the relations
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!