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3 years ago

7

How do you multiply with decimals

1 answer:

kupik [55]3 years ago

8 0

Step-by-step explanation:

Mulitplying Decimals

1. forget about the decimals and multiply like normal.

2. once you get your answer, # of decimals of first number + # of decimals of second number = how many decimal places the answer has. for example if you mulitply 0.1 with 2.45, it would be .245

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Samuel is looking at the floor plan of his house to determine how much carpet he needs to buy for his basement. Based on the flo

DerKrebs [107]

Answer:

B) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, add (40m2 + 24m2 = 64m2).

Step-by-step explanation:

Samuel should is looking to find the area of his basement in order to cover it with carpet.

An area is calculated by multiplying two dimensions (so answers A and D are not it).

Best solution is to divide the area into two large rectangles then ADD them together to get the total area.

The only scenario where he could have subtracted something based on his plan is if he would have multiplied the 10m by the 12m then subtracted the area that is not part of his basement (7mx8m). He would have achieved the same result of course, but by going a different way.

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3 years ago

[ ( 12 + 3 ) x 5 ] + 3<br><br> Please answer down below.

Fittoniya [83]

Answer: 78

Step-by-step explanation:

$[(12+3)\times5]+3\\(15\times5)+3\\75+3\\\implies\boxed{78}$

4 0

2 years ago

Solve by multiplication and addition. Show each step of your work.

Kitty [74]

Answer:

X= -8

Step-by-step explanation:

only if you are supposed to add the equations at the end

4 0

3 years ago

Read 2 more answers

Which expressions have a value of Negative StartFraction 1 Over 64 EndFraction? Check all that apply.

Fantom [35]

Correct Options are:

Option A: (Negative one-fourth) cubed

Option B: Negative (one-fourth) cubed

Option D: Negative (StartFraction 1 Over 8 EndFraction) squared

Option F: Negative (one-half) Superscript 6

Step-by-step explanation:

We need to check the expressions that have value $-\frac{1}{64}$

Option A: (Negative one-fourth) cubed

$(-\frac{1}{4})^3$

Solving: $(-\frac{1}{4})^3$

We get $-\frac{1}{64}$

So, Option A is correct.

Option B: Negative (one-fourth) cubed

$-(\frac{1}{4})^3$

Solving: $-(\frac{1}{4})^3$

We get $-\frac{1}{64}$

So, Option B is correct

Option C: (Negative StartFraction 1 Over 8 EndFraction cubed

$(-\frac{1}{8})^3$

Solving: $(-\frac{1}{8})^3$

We get $-\frac{1}{512}$

So, Option C is not correct.

Option D: Negative (StartFraction 1 Over 8 EndFraction) squared

$-(\frac{1}{8})^2$

Solving: $-(\frac{1}{8})^2$

We get $-\frac{1}{64}$

So, Option D is correct.

Option E: (Negative one-half) Superscript 6

$(-\frac{1}{2})^6$

Solving: $(-\frac{1}{2})^6$

We get: $\frac{1}{64}$

So, Option E is not correct.

Option F: Negative (one-half) Superscript 6

$-(\frac{1}{2})^6$

Solving: $-(\frac{1}{2})^6$

We get: $-\frac{1}{64}$

So, Option F is correct.

So, correct Options are: Option A, B, D and F

6 0

3 years ago

Read 2 more answers

what is the expression of 3/4 times 5/7 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

GREYUIT [131]

Answer:

3 x 5 = 15

4 x 7 = 28

the answer is 15/28

;)

8 0

3 years ago