What is an equation equal to -2m(m+n-4)+5(-2m+2n)+n(m+4n-5)

Answers

Answer 1

Answer:

$\text{Use distributive property:}\ a(b+c)=ab+ac\n\n-2m(m+n-4)+5(-2m+2n)+n(m+4n-5)\n\n=(-2m)(m)+(-2m)(n)+(-2m)(-4)+(5)(-2m)+(5)(2n)\n+(n)(m)+(n)(4n)+(n)(-5)\n\n=-2m^2-2mn+8m-10m+10n+mn+4n^2-5n\n\n=-2m^2+4n^2+(-2mn+mn)+(8m-10m)+(10n-5n)\n\n=-2m^2+4n^2-mn-2m+5n$

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Which is the best estimate for the sum of 3/8 and 1/12¿
Distributive property for 144 divided by 8

-k - 17 = -5 - K - 12

Answers

Answer:

∴ K = 0

Step-by-step explanation:

- K -17 = -5 - K -12

- K + K = - 5 - 12 + 17

0 K = -5 + 5

0 K = 0

∴ K = 0

Answer:

All real numbers are solutions.

Step-by-step explanation:

−k−17=−5−k−12

−k+−17=−5+−k+−12

−k−17=(−k)+(−5+−12)

−k−17=−k+−17

−k−17=−k−17

−k−17+k=−k−17+k

−17=−17

−17+17=−17+17

0=0

Marna is playing game where you score -5 points each time you guess the correct answer. The goal is to get the lowest score . To win the game Marna must have a score less than -80 points. How many correct answer thet Marna need to win the game

Answers

MORE THAN 16 CORRECT ANSWES

HELP 20 POINTS!Please explain how it is solved!

Hannah is having a new house built. The following is an initial blueprint of her new living room and entryway.

The perimeter of the scale drawing is ______centimeters.

If the scale is 1 centimeter = 5 feet, the perimeter of Hannah's actual living room and entryway would be ______feet.

Numerically, the value of the actual perimeter of Hannah's living room and entryway would be _______times the value of the perimeter of the scale drawing.

Based on these results, if the scale is 1 centimeter = k feet, the perimeter of Hannah's actual living room and entryway would be ______feet.

Thank you!

Answers

For the first blank where it asks for the perimeter, the perimeter is all the outside sides of a shape added up. So, 6 + 1 + 2 + 4 + 4 + 5 = 22.

For the second blank, you just multiply the entire perimeter by 5, so, 22 times 5=110.

For the third blank, it is basically the same as the previous question. The answer is 5.

For the fourth blank, it is the same perimeter as the first blank, but instead of centimeters, it is in k. So, 22k.

Hope this helped! :)

Answer:The first one is 22 The second one is 110 The third one is 5 The fourth one 22k

Step-by-step explanation:

dd all the sides of the scale drawing.

So, the perimeter of the scale drawing is 22 centimeters.

If the scale is 1 centimeter = 5 feet, then the dimensions of the actual living room and entryway are 20 feet, 25 feet, 30 feet, 5 feet, 10 feet, and 20 feet. Now, add all the sides of the actual living room and entryway.

So, the perimeter of Hannah's actual living room and entryway would be 110 feet.

To find how many times larger the actual perimeter is than the scale drawing perimeter numerically, divide the numerical value of the actual perimeter by the numerical value of the scale drawing perimeter.

So, the value of the actual perimeter of Hannah's living room and entryway would be 5 times the value of the perimeter of the scale drawing.

Notice that in the scale of 1 to 5, the perimeter of the actual shape is 5 times the perimeter of the scale drawing. So, in a scale of 1 to k, the perimeter of the actual shape would be k times the perimeter of the scale drawing. Therefore, for the scale of 1 centimeter = k feet, the perimeter of Hannah's actual living room would be 22k feet.

Of 40% of the selling price of a $65 sweater is profit,then how many dollers profit does the store make when the sweater is sold

Answers

If 40% of the price is profit, then our answer will be 40% of $65.

40% x $65 = 0.4 x $65 = $26

The store profits $26

HOW MANY SQUARE NUMBERS IN A PACK OF 52 CARDS

Answers

in a pack of 52 cards, there are 3 square numbers - 1, 4, and 9.

1 × 1 = 1
2 × 2 = 4
3 × 3 = 9

The sum of 3 consecutive odd numbers is 51. what is the second number in this sequence

Answers

Answer:

Step-by-step explanation:

since it is in the middle you can just divide by 3 since one will be greater and one will be less so 51/3=17

Assume the second number to be x, then the first numbers is X-2, third number is x + 2
Thus we have a sequence of x-2,x,x+2,the sum of these number is 51:
X-2+x+x+2=51
X=17
So, 15, 17, 19

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