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2 years ago

What do you notice when you divide both sides of an inequality by the same negative number?

Mathematics

1 answer:

Olin [163]2 years ago

8 0

Hey there!

The sign flips. For example, it could go from < to >

Hope this helps:)

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If the age of person A is 7 years more than that of person B and the sum of there ages is 25 years old how old is person A ? (Br

adelina 88 [10]

Answer:

Step-by-step explanation:

9+16 = 25 9+ 7 = 16

8 0

2 years ago

Read 2 more answers

Use Gauss's approach to find the following sums (do not use formulas). 1+3+5+7+...999

muminat

$S=1+3+5+\cdots+995+997+999$
$S=999+997+995+\cdots+5+3+1$
$\implies 2S=(1+999)+(3+997)+(5+995)+\cdots+(995+5)+(997+3)+(999+1)$

$2S=\underbrace{1000+1000+\cdots+1000+1000}_{500\text{ times}}$

(We are adding 500 instances of 1000 because that's how many odd numbers there are between 1 and 1000, inclusive.)

$2S=500\times1000=500000$
$\implies S=250000$

4 0

3 years ago

What is the scale factor that takes the large triangle to the small triangle?

Lerok [7]

Step-by-step explanation:

such a scale factor applies to all sides and lines.

we see that DE is 12 units, and AB is 4 units.

so,

12×f = 4

f = 4/12 = 1/3 is the scale factor

control : check the other side

FE = 6 units

6 × 1/3 = 2

so, the corresponding side in the small triangle must be 2 units long.

and indeed, CB is 2 units long. all correct.

5 0

2 years ago

Whats 3 3/4 divided by 1/2

sasho [114]

3 3/4 divided by 1/2 is 7 1/2.

5 0

3 years ago

Please help I don’t get this

mina [271]

Answer:

H = 11m

Step-by-step explanation:

As we know, volume = length * breadth/width * height

Given,

length = 6m

Breadth/width = 3 1/2 or 3.5

Height = ?

So, l * b * h = v

=> 6m * 3.5m * h = 231m

=> 21m * h = 231m

=> h = 231m /21m = 11m

Therefore, height = 11m / 11metres

Hope this helps

6 0

2 years ago