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3 years ago

Show me an example of multiplying decimals

Mathematics

2 answers:

aalyn [17]3 years ago

4 0

Simple example of multiplying decimals

1.1 * 2.5 = 2.75

or

2.3 * 3.2 = 7.36

bonufazy [111]3 years ago

3 0

4.50 * 30

What I do is ignore the decimal until the very end of the problem.
450 * 30 = 13500

Since the decimal has two numbers behind it, you start from 13500 to 135.00
Which obviously can be written as 135.

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I need help am i correct

nirvana33 [79]

13 x 5 = 65

4 x 7 = 28

28 + 65 = 93

Your error is in you said 13 x 65 is 75

6 0

3 years ago

Read 2 more answers

Can someone help me with this problem? Thank you!

vesna_86 [32]

Answer: the answer is 180 $in^{2}$

Step-by-step explanation:

Area of a rectangle multiply length times base. 15 x 12 = 180. Hope this helps!

6 0

2 years ago

How do I find the inverse function of this equation

trapecia [35]

Answer:

y=ln(x/(1-x))

Step-by-step explanation:

y=e^x/(1+e^x)

Cross multiply

y(1+e^x)=e^x

Distribute

y+ye^x=e^x

Put anything with x on with side and everything without x on opposing side:

y=e^x-ye^x

Factor right hand side

y=(1-y)e^x

Divide both sides by (1-y)

y/(1-y)=e^x

Use natural log.

ln(y/(1-y))=x

The inverse is

y=ln(x/(1-x))

4 0

3 years ago

What is the value of x in the equation 4x+8y=40 when y=0.8

GREYUIT [131]

Substitute in 0.8 for y.

$4x+8y=40 \\ \\ 4x + 8(0.8) = 40 \\ \\ 4x + 6.5 = 40 \\ \\ 4x = 40 - 6.4 \\ \\ 4x = 33.6 \\ \\ x = 8.4 \\ \\$

The final result is: x = 8.4.

3 0

3 years ago

Read 2 more answers

In the figure to the right, AE + DC = 1 1/5 cm, AB = 1 3/4 cm, DE = 1 1/4 cm, and BC = 1 3 /10 cm. Find the perimeter of the fig

pentagon [3]

Answer:

The perimeter of the figure = 9.5 cm

Step-by-step explanation:

Note: You probably missed to add the figure, but after a little research I found and am attaching the figure. I have answered your question based on the reference of that figure. But, I hope you would learn the concept so that you could solve any question based on this concept. So, please check the figure.

Solution:

The perimeter of the figure is the sum of all the sides of the given figure as shown in the attached figure.

So, here is the formula to calculate the perimeter.

Perimeter = AB + DE + BC + AE + BC

As AE + DC = 1 1/5 cm, AB = 1 3/4 cm, DE = 1 1/4 cm, and BC = 1 3/10 cm

Therefore,

Perimeter = 1 3/4 + 1 1/4 + 13/10 + 1 1/5 ∵ AE + BC = 1 1/5

= (130 + 110 + 52 + 88) / 40

= 380/40

= 9.5 cm

So, the perimeter of the figure is = 9.5 cm

Keywords: perimeter

Learn more about perimeter of polygon from brainly.com/question/13393967

#learnwithBrainly

5 0

2 years ago

Read 2 more answers