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3 years ago

( 16 - X ) + ( 4 ) = X + 2

Mathematics

2 answers:

snow_lady [41]3 years ago

6 0

Answer:

X=9

Step-by-step explanation:

Rearrange terms

(16−)+(4)=+2

(−+16)+(4)=+2

Eliminate redundant parentheses

(−+16)+4=+2

−+16+4=+2

Add the numbers

−+16+4=+2

−+20=+2

Subtract 20 from both sides of the equation

−+20=+2−+20

−20=+2−20

Simplify

−=−18

Margarita [4]3 years ago

3 0

The answer is 9, hope that helps :)

(Did you need a explanation?)

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The perimeter of a △ABC equals 12 in. The midpoints of the sides M, N and K are connected consecutively. Find the perimeter of △

Zarrin [17]

Answer:

Perimeter of ΔMNK is 6 in.

Step-by-step explanation:

Midpoint Theorem-

It states that the segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side.

M, N and K are the midpoints of the sides.

So,

$KN=\frac{1}{2}AB$
$NM=\frac{1}{2}CA$
$MK=\frac{1}{2}BC$

Perimeter of a ΔABC is 12 in, i.e $AB+CA+BC=12$ in

Perimeter of ΔMNK is,

$=KN+NM+MK$

$=\dfrac{1}{2}AB+\dfrac{1}{2}CA+\dfrac{1}{2}BC$

$=\dfrac{1}{2}(AB+CA+BC)$

$=\dfrac{1}{2}(12)$

$=6$ in

4 0

3 years ago

There are three shopping preferences for a survey: mall, stand-alone store, and online. The paying preferences are store card, c

Goryan [66]

Answer:

The correct answer is B. 2/5

Step-by-step explanation:

This is the information given to us:

A. Shopping preferences for the survey:

1. Mall

2. Stand-alone store

3. Online

B. Paying preferences:

1. Store card

2. Credit card

3. Cash

4. Gift card

5. Check

Assume equal probabilities within categories.

It means that each of the paying preferences has the same probability of being selected, if there are five, it means each paying preference has 1/5 of probability and if we're choosing two of them: gift card or check, we have

1/5 + 1/5 of probability = 2/5

The probability of paying by gift card or check is 2/5

5 0

3 years ago

327.46 in expanded form

TEA [102]

The answer is 300 + 20 + 7 + .40 + .6

8 0

4 years ago

What is 24 ten thousands

bezimeni [28]

Its like...0.00024 like that I think. hope it helped :)