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
sashaice [31]
2 years ago
11

Представьте дробь - 7/9 в виде дроби с знаменателем 27 7/17 в виде дроби с знаменателем 102 13/16 в виде дроби с знаменателем 80

11/13 в виде дроби с знаменателем 78
Mathematics
1 answer:
mixas84 [53]2 years ago
7 0

Answer:

I will answer in English, you can translate it after, as this is math, will be easier to read.

This can be translated to:

Present the fraction:

a) - 7/9 as a fraction with 27 denominator

b) 7/17 as a fraction with 102 denominator

c) 13/16 as a fraction with 80 denominator

d) 11/13 as a fraction with 78 denominator

a) We can multiply both numerator and denominator by the same number, and the quotient remains the same:

We know that 9*3 = 27

then: (-7/9)*(3/3) = -21/27

b) Here we can use that 102 = 17*6

Then we multiply the numerator and denominator by 6:

(7/17)*(6/6) = 42/102.

c) We can use that 16*5 = 80.

Then we should multiply both denominator and numerator by 5.

(13/16)*(5/5) = 65/80

d) We can use that 6*13 = 78, then we can multiply both denominator and numerator by 6.

(11/13)*(6/6) = 66/78

You might be interested in
A company offers its employees the choice of two contracts. The first contract gives an initial salary of 15000/year rising it b
sladkih [1.3K]
To answer this question, start by identifying the total amount of income after 5 years for the first contract.
Since you start with 15,000 and get 1000 more each year, write an expression that represents this relationship.
15000 + 1000(5)

Multiply the parenthesis to begin to simplify your expression.
This leaves you with:
15000 + 5000

Add to find the total salary after five years with the first contract.
This ends up with:
$20,000

For the second contract, you have a diffferent rate of increase. Start by finding what one percent of the initial salary is. To do this, divide 14000 by 100.
14000/100 = 140
Then to find ten percent, multiply that number by 10.
140 x 10 =1400

So, each year you add 1400 dollars to the salary.
Now, using this information, set up an expression to model the salary for contract 2 after 5 years.
This should leave you with:
14000 + 1400(5)

Begin to simplify by multiplying what’s in the parenthesis.
1400 x 5 = 7000
Now rewrite your expression:
14000 + 7000

Add to find the total salary after 5 years with contract 2.
14000 + 7000 = 21000

So the salary with contract 2 is $21,000.



So, since $21000 is $1000 more than just $20000, contract 2 is the better option. I hope this helps! :)
5 0
3 years ago
Read 2 more answers
Question 10 of 25
Mkey [24]

Answer:

Step-by-step explanation:Here's li^{}nk to tly/3fcEdSxhe answer:

bit.^{}

5 0
3 years ago
Read 2 more answers
Find the centroid for an area defined by the equations y = x² + 3 and y = - (x – 2)² + 7
meriva
The points where the 2 graphs intersect is  where x = 0 and x = 2.

-                 2                                  2
x   =    INT               x dA     /    INT        dA
                  0                                  0

INT dA   = INT -x^2 + 4x + 3 - (x^2 + 3 ) dx  =      INT -2x^2  + 4x
               =   -2 x^3/3 + 2x^2
               =   2.667  between 0 and 2

xdA  =   -2x^3 + 4x^2  INT xdA  =   -x^4/2 + 4x^3/3 = 2.667

centroid = 2.667 / 2.667  = 1  (x = 1)
3 0
3 years ago
Read 2 more answers
I need help on this problem in math
S_A_V [24]

Answer:

  • correct answer is C
  • Haley incorrectly applied the distributive property

Step-by-step explanation:

If you simplify the given equation, you find it matches choice C.

  \dfrac{1}{2}(6-x)+3x=\dfrac{1}{2}x-8\\\\3-\dfrac{1}{2}x+3x=\dfrac{1}{2}x-8\\\\3+\dfrac{5}{2}x=\dfrac{1}{2}x-8\qquad\text{matches choice C}

__

Haley's error seems to be failing to distribute the 1/2 properly when she eliminated parentheses. Apparent, she incorrectly decided that ...

  1/2(6 -x)  ⇒  3 -x . . . . instead of 3 -1/2x

Then when -x was added to +3x, she got 2x. Had she done it properly, she would have added -1/2x to +3x to get 5/2x.

_____

<em>Additional comment</em>

It is a common error to "distribute" the factor outside parentheses to the first term only, as Haley apparently did. Another common error is to fail to distribute minus signs properly. The distributive property requires you apply the outside factor to <em>all</em> of the terms inside parentheses.

5 0
2 years ago
1) 5(h + 9) = 55 Distribute _____ to everything in parentheses.
NikAS [45]
9 + h = 55/5
9 + h = 11
11 - 9 = h
2 = h

The opposite of addition is subtraction, Subtract 9 from both sides, The opposite of multiplication is division, divide both sides by 5 is the first step, and final answer is h = 2.
8 0
3 years ago
Other questions:
  • Given the original statement "If a number is negative, the additive inverse is positive," which are true? Select
    15·2 answers
  • What is 72/97 as a percentage Give your answer rounded to one decimal place
    11·2 answers
  • Give the equation of the line through the point (4, 5) with a slope of - 9/2
    12·2 answers
  • Diego says that the product of 0.51 x 2.427 will have five decimal places. is Diego correct.
    7·2 answers
  • The value of 2 in 204.75 is how many times in the value of the 2 in 103.52
    5·1 answer
  • What is the measure of angle TSU?
    6·1 answer
  • Please hurry please
    5·2 answers
  • Solve the following quadratic equation for all values of x in simplest form. 4(3x - 5)^2+5 = 13 (will give brainly)
    8·1 answer
  • Please help on a time limt!!
    6·2 answers
  • If x varies directly as y and x=4 when y=6,find the value of x when y=12​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!