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3 years ago

-3-3 (2x+7)-4(6x+7)-10

Mathematics

1 answer:

AleksandrR [38]3 years ago

4 0

Answer:

=−30x−62

Step-by-step explanation:

Distribute:

=−3+(−3)(2x)+(−3)(7)+(−4)(6x)+(−4)(7)+−10

=−3+−6x+−21+−24x+−28+−10

Combine Like Terms:

=−3+−6x+−21+−24x+−28+−10

=(−6x+−24x)+(−3+−21+−28+−10)

=−30x+−62

Answer:

=−30x−62 i think :)

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3 years ago

An equal number of pieces of candy were given to children on Halloween. 30 pieces of candy were given out to boys. 48 pieces of

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Answer:

6 pieces of candy

Step-by-step explanation:

Since an equal number of pieces of candy were given to children on Halloween, and obviously, a different amount of boys and girls were present on Halloween. Since 30 pieces of candy were given out to boys and 48 were given out to girls, a certain amount of candy was given to some amount of boys to equal 30, and that same amount of candy was given to another amount of girls to equal 48. Since we are looking for the greatest number of pieces given to each child, we are looking for the greatest common divisor of 30 and 48, which is 6.

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3 years ago

The weekly salaries of six employees at McDonalds are $140, $220, $90, $180, $140, $200. For these six salaries, determine: (a)

lys-0071 [83]

Answer:

a) Mean = 161.666667

b)Mode = 140

c) Median =160

d) Range =130

Step-by-step explanation:

Given that the weekly salaries of six employees =$140, $220, $90, $180, $140, $200

Mean =Total number of salaries/ Number of salaries

=$140 +$220 +$90 +$180 + $140 +$200 /6=970/6= 161.666667

Mode = The number with the highest frequency ie the number that occurs most in the listed salaries

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Therefore 140 is the mode

Median = The number that occurs in the middle, Now that we have a list of even Numbers, our median would be the sum of the two middle numbers divided by 2 after arranging in ascending order fro least to greatest

$90, $140,$140, $180, $200,$220

Median =$140+ $180 / 2 = 160

Range = The difference between the highest and lowest number in the sample

$220-$90=130

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3 years ago