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Ostrovityanka [42]
3 years ago
10

To be able to do the problem 5(10 + 4) mentally, Zack does 50 + 20 instead of 5(14).

Mathematics
2 answers:
Eddi Din [679]3 years ago
8 0

Answer:

1. Distributive

Step-by-step explanation:

This is because you multiply the number outside the parentheses into the numbers inside the parentheses.

Hope it helped.

Dafna11 [192]3 years ago
5 0

Answer:

the answer is 1)

Step-by-step explanation:

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A line passes through (-7,-5) and (-5,4). Write an equation for the line in point-slope form. Rewrite the equation in standard f
rewona [7]
The equation:
y - y 1 =  ( y2 - y1 ) / ( x2- x1) * ( x - x1 )
y - ( - 5 ) = ( 4 + 5 ) / ( - 5 + 7 ) * ( x - ( - 7 ) )
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4 0
3 years ago
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If six cookies cost the same as 2 brownies, and four brownies cost the same as 10 cupcakes, how many cupcakes can Bob buy for th
vodomira [7]

Bob can buy 15 cupcakes for the price of 18 cookies.

Step-by-step explanation:

  • Assume the cost of a cookie is $x, the cost of a brownie is $y and the cost of a cupcake is $z.
  • It is given that 6 cookies and 2 brownies cost the same, so 6x = 2y, take this as equation 1.
  • It is also given that 4 brownies cost the same as 10 cupcakes, so           4y = 10z, take this as equation 2.
  • If we divide equation 2 by 2 we get, 2y = 5z so that the y value is the same as equation 1 and we can equate equation 1 and 3.
  • We get 6x = 2y = 5z, 6x = 5z, dividing both sides by 5, we get  1.2x = z.
  • We need to calculate how many cupcakes Bob can buy for the price of 18 cookies, So we must find the z value when the x = 18.
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4 0
3 years ago
Consider the number 284,682
Law Incorporation [45]

Answer:

Hundred thousand's 200000

Ten thousand's = 80000

Thousand's = 4000

Hundreds = 600

Tens = 80

Ones = 2

This is the place value of 284682

Two hundred eighty-four thousand six hundred eighty-two

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3 years ago
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