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Irina18 [472]
3 years ago
12

Help me solve this proportionalequation

%20%5Cfrac%7B7%7D%7B3%7D%20" id="TexFormula1" title=" \frac{9 + x}{9} = \frac{7}{3} " alt=" \frac{9 + x}{9} = \frac{7}{3} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Blizzard [7]3 years ago
5 0
Cross multiplication, 3(9+x) = 63
27+3x = 63
3x = 63-27 = 36
x=36/3=12
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Forty discrete math students are to be divided into eight discussion groups, each consisting of five students. In how many ways
VARVARA [1.3K]

Answer:

<h2>76904685 ways</h2>

Step-by-step explanation:

Given data

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the number of groups r= 8

We are going to use the combination approach to solve the problem

nCr= n!/r!(n-r)!

substituting into the expression for the number of ways we have

40C8= 40!/8!(40-8)!

nCr= 40!/8!(32)!

nCr= 40!/8!(32)!

nCr= 40*39*38*37*36*35*34*33*32!/8!(32)!

nCr= 40*39*38*37*36*35*34*33*/8!

nCr= 40*39*38*37*36*35*34*33*/8*7*6*5*4*3*2

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3 years ago
How many times greater is the value of the 2 in 204,936 than the value of the 2 in 124,936
Sliva [168]
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5 0
3 years ago
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Look at the graph shown<br> Which equation best represents the line?
Brilliant_brown [7]

y=\frac{11}{4}x +4 is the equation best represents the line.

Solution:

Take any two points on the line.

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where m is the slope and c is the y-intercept of the line.

<em>y-intercept is the point which line crosses at y-axis.</em>

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y=\frac{11}{4}x +4

Hence y=\frac{11}{4}x +4 is the equation best represents the line.

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3 years ago
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Kaylis [27]

Answer:

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