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
sergij07 [2.7K]
3 years ago
15

The product of two rational numbers is (-28/81). If one of them is (-2/3), the find the other.

Mathematics
2 answers:
KatRina [158]3 years ago
6 0

Answer:

The other rational number is \dfrac{14}{27}.

Step-by-step explanation:

First rational number is \dfrac{-2}{3}

Let other rational number is \dfrac{x}{y}

The product of two rational numbers is \dfrac{-28}{81}

According to question,

\dfrac{x}{y}\times \dfrac{-2}{3}=\dfrac{-28}{81}

Multiplying both sides by (-3/2) such that,

\dfrac{x}{y}\times \dfrac{-2}{3}\times \dfrac{-3}{2}=\dfrac{-28}{81}\times \dfrac{-3}{2}\\\\\dfrac{x}{y}=\dfrac{14}{27}

So, the other rational number is \dfrac{14}{27}.

steposvetlana [31]3 years ago
4 0

Answer:

The other rational number is . 14

Step-by-step explanation:

You might be interested in
What is the measure of this angle?<br> A) 44° <br> B) 56° <br> C) 136° <br> D) 144°
allsm [11]
A) 44 degrees just look at the degree the line segment lands on in the protractor
4 0
3 years ago
Read 2 more answers
Solve for n: c= 6n−5g /11t
qwelly [4]

Answer: \frac{11tc+5g}{66t}=n

Step-by-step explanation:

You have the equation c=6n-\frac{5g}{11t}.

Then, to solve for the variable n from the equation you need:

Make the subtraction of the right side of the equation:

(As the denominators are 1 and 11t, the least common denominator is 11t)

c=\frac{(6n)(11t)-5g}{11t}\\\\c=\frac{66nt-5g}{11t}

Multiply  11t to both sides:

(11t)c=(\frac{66nt-5g}{11t})(11t)\\\\11tc=66nt-5g

Add 5g to both sides:

11tc+5g=66nt-5g+5g\\\\11tc+5g=66nt

And finally divide both sides by 66t:

\frac{11tc+5g}{66t}=\frac{66nt}{66t}\\\\\frac{11tc+5g}{66t}=n

3 0
3 years ago
Who was responsible for inventing the first working four-stroke engine?<br>​
Verizon [17]

Answer:

Nikolaus Otto was  responsible for inventing the first working four-stroke engine.

​

Step-by-step explanation:

7 0
3 years ago
A year ago, my dog weighed 3kgs. I weighed him today and he weighs 4/10 more. How much does he weigh now?
Mariana [72]

Answer: He now weighs 4.2 kg because 4/10 of 3 is 1.2 and 1.2+3=4.2

5 0
3 years ago
A polyhedron has 8 vertices and 14 edges. How many faces must it have?
Scorpion4ik [409]
We know that

The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

V - E + F = 2
clear F
F=2-V+E

in this problem
V=8
E=14
F=?
so
F=2-8+14
F=8

the answer is
8 faces
7 0
3 years ago
Other questions:
  • What is the square root of 5/3 as a fraction?
    10·2 answers
  • State the slope and y-intercept for -y+8x=2x
    6·2 answers
  • Please help me with trigonometry
    6·1 answer
  • -17+6+(-3) simplify each expression show your work
    12·1 answer
  • In a department store, a $40 dress is marked, “Save 25%.” What is the sale price of the dress?
    5·1 answer
  • (2x^2 -27)=(3x^2 -6x)
    11·1 answer
  • PLEASE HELP ME ASAP ?!?!?
    5·1 answer
  • The midpoint of AB is M (4,-2) . If the coordinates of A are (3,-6) , what are the coordinates of B
    12·1 answer
  • 2. Two rectangular fields with identical shapes and areas are to be fenced side by side. The total area enclosed is 8mi^2 and th
    6·1 answer
  • 2. Find the relationship of x and y from
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!