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2 years ago

Evaluate using properties of arithmetic operations. 12∙121∙13÷(26∙11)∙7÷11

Mathematics

1 answer:

Anika [276]2 years ago

8 0

Answer:

0.1978

Step-by-step explanation:

According to the rule of BODMAS (or FEDMAS), let us do the bracket first.

26·11 = 286

Now, do the multiplication from the left.

12·121·3 = 4356

286·7 = 2002

Now, do the division from the left.

$\frac{\frac{4356}{2002} }{11}$

$=\frac{4356}{2002(11)}$

$=\frac{396}{2002}$

= 0.1978

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The length of a rectangle is 6 feet longer than its width. If the perimeter of the rectangle is 56 feet, find its length and wid

alexira [117]

2(6+x) + 2x=56
12+4x=56
-12 -12
4x=44
÷4 ÷4
x=11

The measure of the width is 11ft
and the measure of the length is:
11+6=17ft

6 0

2 years ago

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Helga [31]

Answer:

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7 0

1 year ago

Read 2 more answers

1.) You are the crew chief of the Algebra 2 formula racing team. Your current task is to

s344n2d4d5 [400]

Answer:

a). Mileage for carA= $\frac{2}{x}$ , and mileage for carB= $\frac{ 3x+2}{x(x+1)}$

b).total mileage for both is similar to average of them= $\frac{(mileageA + mileageB)}{2}$

= $\frac{5x+4}{2x(x+1)}[tex]mil/gal$

Step-by-step explanation:

It is given that the distance traveled by car $A=2x+2=2(x+1)$

And distance traveled by car $B= 3x+2$

We know the mileage is mile/gallon,

a).So mileage of car $A= \frac{distance traveled by car A}{gallos of fuel used}$

$=\frac{2x+2}{x^2 +x}\\ =\frac{2(x+1)}{x(x+1)} \\=\frac{2}{x}mil/gal$

Similarly , the mileage for car $B= \frac{distance traveled by car A}{gallons of fuel used}$

$=\frac{3x+2}{x^2+x} \\=\frac{3x+2}{x(x+1)}$ $mil/gal$

b).total mileage for both is similar to average of them= $\frac{(mileageA + mileageB)}{2}$

$=\frac{2x+2}{x(x+1)}+\frac{3x+2}{x(x+1)}\\ =\frac{2x+2+3x+2}{x(x+1)}\\=\frac{5x+4}{x(x+1)}mil/gal$

Now divide by 2 for total(average) mileage.

$\frac{\frac{5x+4}{x(x+1)} }{2}\\ =\frac{5x+4}{2x(x+1)} mil/gal$ .

Thus those are the answers.

4 0

2 years ago

Cual es resultado de (-4)+( )=-(28)

Nana76 [90]

Answer:7

Step-by-step explanation:

-4+0=-4

-4=-28

Divida -28 por -4. Respuesta es 7

5 0

2 years ago

Read 2 more answers

Can someone please answer. There is only one problem. There's a picture. Thank you!

AlekseyPX

1540.5 .
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4 0

2 years ago