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Elden [556K]
3 years ago
7

Some pls help to give 20 points

Mathematics
1 answer:
madreJ [45]3 years ago
4 0

Answer:

Neon= -10+10= 0 on no change

oxide=-10+8=-2

copper=-27 +29 = 2

tin= -50 +50 = 0 or no change

Step-by-step explanation:

Its basically subtraction ( i pretty sure thats right)

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What is the total cost for a $100 dinner plus 20% tip plus 8% sales tax
hoa [83]
$129.6

you do 100 times .08 and get 8 so 100 + 8 = 108
then you do 108 times .20 and get 21.6 so 108 + 21.6 = 129.6
6 0
2 years ago
A deck of 38 cards contains 16 blue cards, 6 red cards, and 16 yellow cards. What is the probability of randomly drawing a blue
GalinKa [24]
The probability of drawing a blue card is equal to the quotient when the number of blue cards is divided by the total number of cards. This is, 16/38 which is also equal to 8/19. Thus, the probability of drawing a yellow card is 8/19. The answer is letter C. 
5 0
3 years ago
Numa turma, 5% dos homens e 2% das mulheres tem mais de 1,60m de altura. Por outro lado, 60% dos estudantes são homens. Se um es
Zinaida [17]

Answer:

0.8%

Step-by-step explanation:

Because they are two independent events, the final probability is the product of the probability of each event.

First event:

The complement of a student being male is that he is female.

Therefore, if 60% is male, the remaining 100% is 40%, meaning that 40% of the students are female.

Second event:

If she's taller than 5'4", we're told she has a 2% chance of being a woman.

Therefore the final probability is:

0.4*0.02 = 0.008

That is, the probability that it is female and that it is over 1.6 meters tall is 0.8%.

6 0
3 years ago
How many feet equal 72 inches
Travka [436]

Answer:

6

Step-by-step explanation:

3 0
3 years ago
Please helppp!! ill give brainliest <333
hichkok12 [17]

Answer: Area: D. 32\frac{6}{20}

Step-by-step explanation:

Step 1: Convert the Expressions

4\frac{3}{4}*6\frac{4}{5}

\frac{19}{4}*\frac{34}{5}

Step 2: Reduce the Numbers

\frac{19}{4}*\frac{34}{5}

\frac{19}{2}*\frac{17}{5}

Step 3: Multiply

\frac{19}{2}*\frac{17}{5}

\frac{323}{10}

Step 4: Simplify

\frac{323}{10}

32\frac{6}{20}

Please mark brainliest if this helped! :)

4 0
3 years ago
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