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3 years ago

I NEED HELP ASAP AND WILL GIVE BRAINLIEST !!

Mathematics

1 answer:

CaHeK987 [17]3 years ago

7 0

Correct answer:
r = 1:4

Step-by-step explanation:
a=40
b=10

r=b/a=10/40=0.25

Hope this helps i tried my best

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3 years ago

Read 2 more answers

4 times as much as 3 is

pshichka [43]

4 times as much as 3 is 12.

<h3>Further explanation </h3>

Consider the following sentence:

X times as many as Y refer to X multiplied by Y

Therefore, the phrase 4 times as much as 3 is ... can be rewritten to 4 multiplied by 3 is ... .

We can say this is a simple multiplication operation, which is one of four basic operations, i.e.,

addition,
subtraction,
multiplication, and
division.

However, the case we face is only a multiplication, not accompanied by another operation.

Let's go back to our problem. We think naturally about this multiplication. 4 times 3 means there are two options like the following:

Addition of 4 as many as 3 times (there are 3 terms).
Addition of 3 as many as 4 times (there are 4 terms).

Actually both are the same, i.e., 3+ 3 + 3 + 3 = 12 or 4 + 4 + 4 = 12.

We state it quickly.

4 times as much as 3 is 4 x 3 = 12 or twelve.

Note:

The Commutative Property of Multiplication: $\boxed{a \times b = b \times a}$

Hence, $\boxed{ \ 4 \times 3 = 3 \times 4 = 12\ }$

<h3>Learn more </h3>

Explanations and an example of a question about the four types of number form brainly.com/question/4725342
10 times as many as 1 hundred brainly.com/question/572693
What 3 digits are in the units period of 4,083,817? brainly.com/question/558692

Keywords: 4 times as much as 3, 12, twelve, multiplication, basic operations, addition, terms, the commutative property of multiplication

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3 years ago

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netineya [11]

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4 years ago

(x-1)^2+(2-x)^2-3(x-5)*(x-5)

Natali5045456 [20]

Answer:

$-x^2+24x-70$

Step-by-step explanation:

$(x-1)^2+(2-x)^2-3(x-5)*(x-5)\\=> (x - 1)^2 + (2 - x)^2 - 3(x - 5)^2\\=> x^2 - 2x + 1 + 4 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 2x + 5 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 6x + 5 + x^2 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x^2 - 10x + 25)\\=> 2x^2 - 6x+5 - 3x^2+30x-75\\=> -x^2 - 6x + 5 + 30x - 75\\=> -x^2 + 24x + 5-75\\=> -x^2+24x-70$

Formula used =

$(a-b)^2 = a^2+ 2ab + b^2$

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3 years ago