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2 years ago

HELLPP PLZZ Which value from the set {3, 9, 24, 36} makes m(2^2 + 2^3 ) = 3 • 12 true?

Mathematics

1 answer:

Stells [14]2 years ago

7 0

Answer:

12*3 is 36 and (2^2 + 2^3 ) is 12 so you have to get 12 to 36

Step-by-step explanation:

which is 12 *3 so 3

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storchak [24]

Answer:

Number of students in vans =15 and bus =46

Step-by-step explanation:

use variables for the vans and buses

let x= vans and y=buses

Now solve the 2 equations simultaneously

remember to number your equations

6x+7y=412..........1

6x+9y=504.........2

make x the subject of one equation

and label it equation 3

6x=412—7y

$x = \frac{206}{3} - \frac{7y}{6} .............3$

subs 3 into 2

$6( \frac{206}{3} - \frac{7y}{6} ) + 9y = 504$

$412 - 7y + 9y = 504$

$- 7y + 9y = 504 - 412$

$2y = 92$

$y = 46...................4$

subs 4 into 1

$6x + 7(46) = 412$

$6x + 322 = 412$

$6x = 412 - 322$

$6x = 90$

$x = 15$

Therefore there are 15 students in each van and 46 students in each bus.

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