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r-ruslan [8.4K]
3 years ago
9

How to evaluate this expression -3 . (6 + 4 . 2)

Mathematics
1 answer:
lilavasa [31]3 years ago
4 0

Answer:

9

Step-by-step explanation:

All you have to do is follow this order while working a problem!

Example 1:

If a = 4 and b = 5, what is ab – 2b?

Since there are no parentheses or exponents,

you first plus in the values for a and b and multiply those together.

(4 ´ 5) You get 20.

Then, you multiply 2b or (2 ´  5 )which gives you 10.

Last, you subtract the second answer from the first (20 -10),

which gives you 10!

Example 2:

Evaluate 6x / 4 when x = 6.

Because multiplication and division are equal in the order of operations, you solve the problem by reading it from left to right like one would read a book.

6 x 6 = 36.

You then divide that number by 4.

The correct answer is 9.

(clip art was taken from http://www.kidsdomain.com/holiday/school/clip.html)

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Mary has 96 muffins which she needs to box up, 5 of which are blueberry, into dozens. How many boxes dose he need
lesya692 [45]

Answer:

8

Step-by-step explanation:

Mary needs 8 boxes to put 96 muffins in dozens so 96÷12 gives you 8

8 0
3 years ago
Read 2 more answers
JA manufacturer determines that the cost of making a computer component is ​$3.161616. Write the repeating decimal cost as a fra
Bad White [126]

Answer:

The repeating decimal cost

a) As a fraction = $\frac{3161616}{1000000}

b) As a mixed number = $ 3\frac{161616}{1000000}

Step-by-step explanation:

The cost of making a computer component

= $3.161616

= $ 3 + 0.161616

Looking at the repeating decimal it is in 6 decimal places, hence to convert it to a fraction,

0.161616/ 1000000 × 1000000

= 161616/1000000

Therefore, the cost of making  the  computer component =

$3 + $161616/1000000

Step 1

We convert to a fraction

$3 + $161616/1000000

We find the LCM = 1000000

($3 × 1000000)+ ($161616× 1)/1000000

3000000 + 161616/1000000

= $ (3161616/1000000)

As a Mixed number = 3\frac{161616}{1000000}

8 0
3 years ago
Find c such that (−3,−8), (−7,−6), and (c,4) lie on a line.
bearhunter [10]
If the 3 points are collinear, then the slopes of all line segments connecting the points are the same.

Thus,

-6 - (-8) 2
m = ------------- = -------- = -1/2
-7 - (-3) -4

Then the following must be true:

4-(-6) 10
-1/2 = ------------ = ---------
c - (-7) c + 7

Cross multiplying, -(c+7) = 20, and c+7 = -20, so that c = -27
7 0
3 years ago
How can we isolate the variable c
Vlada [557]

Well depending on the equation you look at both sides and eliminate everything from both using addition, subtraction, multiplication, and division.

Ex:

3c-4=7                                                                                                                                                    first add the 4 because you use the opposite type of operation so you add it to 7 which gives you:

3c=11                                                                                                                                          next you have to divide to get it alone

3c/3=11/3

which gives you

c=   3.66666666667

8 0
3 years ago
If Z, Y, and A are the midpoints of triangle VWX, what is true about AY and XV
Darya [45]
They are parallel to each other. and ay is half the length of xv

4 0
3 years ago
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