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3 years ago

HELP ASAPPP What is 60% of 40?

Mathematics

2 answers:

sweet-ann [11.9K]3 years ago

7 0

The answer is 24

(dont mind this bit, i have to have more letters to post x)

Paha777 [63]3 years ago

6 0

Answer:

The answer is 24

Step-by-step explanation:

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7.57.57, point, 5 liters of a certain solution contain 373737 grams of salt. What is the density of salt in the solution?

geniusboy [140]

Answer: 4.9

Step-by-step explanation:

You are trying to find the density

So you divide the mass by the volume

Mass: 37 grams

Volume: 7.5 liters

37 grams/ 7.5 liters = 4.9

4 0

3 years ago

Explain whether the following given sets are closed under addition:

Ivan

Answer:

Step-by-step explanation:

a) Yes.

$\forall\ a,b\ \in\ B,\ a+b\in B\ (since\ 0+0=0)$

b) Yes

$W=\{0,1,2,3,..,\}\ (whole\ numbers)\\\forall\ a,b\ \in\ 3W,\ a+b\in 3W\\since:\\a\ \in\ 3W \Longrightarrow\ \exists\ k_1\in W | a=3*k_1\\\\b\ \in\ 3W \Longrightarrow\ \exists\ k_2\in W | b=3*k_2\\\\a+b=3*k_1+3*k_2=3*(k_1+k_2) \in 3W\\$

c) Yes

$\forall n\ \in\ \mathbb{N}: \Longrightarrow\ n+1 \in\ \mathbb{N}\\$

d) No

$3\in V , 3+3=6\notin V\\$

7 0

3 years ago

1. It is a four digit whole number. 2. It is the product of three consecutive numbers. 3. One of these three consecutive numbers

andre [41]

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3 years ago

The simplest form of sqrt 80 can be written as a sqrt b where a = and b =

Zanzabum

The square root of 80 can be broken up into the square root of 16 x square root of 5. We know that the square root of 16 is 4. So in the form (a sqrt b)

A would be 4 and b would be 5.

Answer: 4 sqrt 5

5 0

3 years ago

Read 2 more answers

16 + 4(x)= -2<br> What is x?

borishaifa [10]

Answer:

x = -9/2

Step-by-step explanation:

16 + 4(x) = -2

4x = -2 - 16

4x = -18

x = -18/4

x = -9/2

4 0

3 years ago