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natali 33 [55]
3 years ago
14

At school assembly four out of the first 10 students are wearing spirt wear. Based on this information, if 500 students were at

the assembly how many students could be expected to be wearing spirt wear
Mathematics
1 answer:
8090 [49]3 years ago
6 0
Answer=125
Step by step=
Well if 10 x 50 is 500 (just to show how you get doesn't affect problem) you would simply divide by 4 thus, you get 125
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Solve by factorisation 2x^2+3x-20
olga2289 [7]

Answer:

(x + 4) × (2x - 5)

Step-by-step explanation:

  • Begin by writing 3x as a difference
  • 2x^2 + 8x - 5x - 20

  • Factor out 2x from the expression
  • 2x × (x + 4) - 5x - 20

  • Factor out -5 from the expression
  • 2x × (x + 4) - 5 (x + 4)

  • Factor out x + 4 from the expression
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Hope this helps!!

7 0
3 years ago
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Solve equation x/6+4=15
RoseWind [281]

x/6+4= 15


Subtract 4 from both sides; 4s cancel each other out

x/6+4-4= 15-4


x/6= 11


multiply both sides by 6 to eliminate fraction (multiply by reciprocal of 1/6)

(x/6)(6)= (11)(6)


x= 66



ANSWER: x= 66


Hope this helps! :)

8 0
4 years ago
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What are the coordinates of point B?
zaharov [31]

Point a is at (-2,4) => (x1,y1)

Midpoint is (2.5, 3.5) => (a,b)

Point B is (x2, y2)

To find midpoint we use formula

(a=\frac{x_1+x_2}{2} , b= \frac{y_1+y_2}{2})

a= 2.5, b= 3.5, x1= -2  and y1= 4

Plug in all the values and findout x2, y2

(2.5=\frac{-2+x_2}{2} , 3.5= \frac{4+y_2}{2})

multiply 2 on both sides to remove fraction

(5 = -2+x2 , 7 = 4+ y2)

5 = -2+x2, so x2= 7

7 = 4+ y2, so y2= 3

The point B is ( 7, 3)

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3 years ago
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Ivahew [28]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
For what value of k does the equation have no solution? kx - 4 = 5x + 8
baherus [9]

Answer:

Your answer is: k = 5+12/x

Isolate the variable by dividing each side by factors that don't contain the variable.

Step-by-step explanation:

Hope this helped : )

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3 years ago
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