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uranmaximum [27]
3 years ago
7

What is 50% of 30? anyone

Mathematics
2 answers:
mr_godi [17]3 years ago
4 0

Answer:

15

Step-by-step explanation:

usually to find a percent of a number I convert the percent to decimal form and multiply that by the value.

Example: 50%=0.50

0.50*30=15

but since this is an easy one I just took half of 30 which if 15

hope this helps <3

tensa zangetsu [6.8K]3 years ago
3 0

Answer:

15

Step-by-step explanation:

.5 * 30 = 15

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it says it all in the picture I need help, please, and also show reasoning and how you got the answer
Alenkasestr [34]

Answer:

y = -2  when x = 0

Step-by-step explanation:

We are given points on the line such as ( 2, 2) and (6, 10) so we can find the equation of the line then find point (x=0, y=?).

General equation of the line is y = mx +b, where m is the slope and

b is y-intercept (where the line crosses the y-axis)

The slope m = (y2-y1)/ (x2-x1) = (10-2)/(6-2) = 8/4 = 2

Now the equation is y = 2x +b

To find b we substitute any of the points that are on the line, for example

(x=2, y=2) in the equation 2=2*2+b; 2-4 =b; -2 = b

The equation is y=2x -2

If x= 0 then y=2*0 -2; y = -2

4 0
3 years ago
24, 43, 89, 15 Which two numbers in the box are composite numbers A) 15,24 B) 24,43 C) 43,89 D) 89,15
lutik1710 [3]
A composite number is a number that is not prime. Therefore since 43 and 89 are prime,
A. 15,24 is the answer
6 0
3 years ago
Read 2 more answers
Lacy draws a diamond from a standard deck of 52 cards. Without replacing the first card, she then proceeds to draw a second card
Viktor [21]

Answer:

a) i) No

ii) Probability of drawing a diamond and then spade without replacement is 0.0637.

b) i) Yes

ii) Probability of drawing a diamond and then spade with replacement is 0.0625

Step-by-step explanation:

Part a) Without replacement:

i) Are these events independent?

No, because the both events are dependent. because a card taken out of the deck is not replaced back before taking out the other card so the chances of event occur change.

ii) Determine the probability of drawing a diamond and then a spade without replacement.

Probability of drawing a diamond and then spade = (Probability of drawing a diamond) * (Probability of drawing a spade)

Probability of drawing a diamond :

Total cards in deck = 52

Diamonds = 13

Probability of drawing a diamond  = 13/52

Probability of drawing a spade:

Total cards in deck after taking diamond = 52 -1 =51

Spades = 13

Probability of drawing a spade  = 13/51

Probability of drawing a diamond and then spade = 13/52 * 13/51

= 169/2652

=0.0637

So, Probability of drawing a diamond and then spade without replacement  is 0.0637

Part b) With replacements

i) Are these events independent?

Input Yes or No:

Yes, these events are independent because a card taken out of the deck is replaced back before taking out the other card so the chances of event occur doesn't change.

ii) Determine the probability of drawing a diamond and then a spade with replacement.

Probability of drawing a diamond and then spade = (Probability of drawing a diamond) * (Probability of drawing a spade)

Probability of drawing a diamond :

Total cards in deck = 52

Diamonds = 13

Probability of drawing a diamond  = 13/52

Probability of drawing a spade:

Total cards in deck after replacing diamond = 52

Spades = 13

Probability of drawing a spade  = 13/52

Probability of drawing a diamond and then spade = 13/52 * 13/52

= 169/2704

=0.0625

So, Probability of drawing a diamond and then spade with replacement is 0.0625

7 0
4 years ago
What is the chemical formula of water.​
igor_vitrenko [27]

Answer:

Guess its H2

Step-by-step explanation:

prove me wrong

6 0
3 years ago
Read 2 more answers
A store marks up a pair of sneakers 30%. Write the percent as a fraction or mixed number in simplest form.
s344n2d4d5 [400]

Answer: 9/36

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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