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ser-zykov [4K]
3 years ago
9

Are 3/4 and 12/9 equivalent explain your answer?​

Mathematics
1 answer:
julia-pushkina [17]3 years ago
7 0

yes

12/9=4/3

we used reciprocal here

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The ratio of girls to boys in Liza’s classroom is 5 to 4. How many girls are in her classroom if there is a total of 27 students
prisoha [69]

Answer:

Number of girls =  15

Step-by-step explanation:

girls : boys = 5 : 4

Number of girls = 5x

Number of boys = 4x

Total students = 27

5x +4x = 27

9x = 27

x = 27/9

x = 3

Number of girls = 5x = 5*3 = 15

7 0
3 years ago
The 40 and 50 degree angles are?
olga55 [171]

Answer:

40 degrees is acute, 50 is also acute and they both make up a right angle (90 degrees)

Step-by-step explanation:

4 0
2 years ago
!! please hurry it's timed !!
jonny [76]

Answer:

(1,2)

Step-by-step explanation:

thats the point of intersection so they have the same outcome

I'm a little confused by the question but I hope this helps :)

6 0
3 years ago
Let f(x)=2x-1 and g(x)=x^2 -3. Find (f o g)(-3)
anzhelika [568]
(f o g)(-3) = (f(g(-3))
Because g is on the inside, we carry out g first.

g(x) = x^2 - 3
Substitute -3 in for x.
g(-3) = (-3)^2 - 3 = 9 - 3 = 6
g(-3) = 6

Next, carry out f on the result of g(-3)
f(6) = 2(6) - 1
      = 12 - 1
      = 11
So the answer is 11.

6 0
3 years ago
HD Straight line graphs
Taya2010 [7]

Answer:

The equation of the sraight line  3x- y+ 6 =0

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given that the gradient of the function

   |gradf| = 3  and point (-1,3)

Given that the slope of the line

 m = 3

The equation of the straight line passing through the point(-1,3) and slope m =3

y -y_{1} = m(x-x_{1} )

y-3 = 3(x-(-1))

y-3 = 3x+3

3x +3-y+3=0

3x- y+ 6 =0

<u><em>Final answer:-</em></u>

The equation of the sraight line  3x- y+ 6 =0

<u><em></em></u>

   

5 0
3 years ago
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