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3 years ago

I’m very stuck and someone give the answer

Mathematics

1 answer:

svlad2 [7]3 years ago

7 0

Answer:

since there are 30 students as a whole and 20 boys make up part of the class, you can assume that there are 10 girls in the class. since the mean mark for boys is 62 I think the mean mark for girls would be 8%

Step-by-step explanation:

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Paul’s Paints sells a 24-gallon case of paint for a total of $576, including tax. Stella’s Paints sells a 64-gallon case of pain

Ratling [72]

Find the unit rate, or cost of 1 gallon.

576/24=$24 per gallon
1664/64=$26 per gallon.

Paul's Paint sells paint for the least amount as 24<26.
There is a $2 difference.

4 0

4 years ago

What is 200 times 40000

denis-greek [22]

200 times 40000 is 8000000.

200

x 40000

---------------

8000000

8 0

3 years ago

Read 2 more answers

Help me with math pls 20 pints show work !

eduard

Answer:

the answer is 16x

Step-by-step explanation:

first, you have to add like terms so 6x+10x then you get your answer

5 0

3 years ago

Adjust the number into correct standard form.<br> 4381<br> ×<br> 10<br> 3

ZanzabumX [31]

Answer:

the standard form of the given number is 4.381 x 10⁶

Step-by-step explanation:

Given number = 4381 x 10³

The above number can also be written as; 4381.0 x 10³

In standard form, the decimal point will be moved three steps backward to the first digit (4) and the resulting is multiplied by 1000, as shown in the number below;

4381.0 x 10³ = 4.381 x 10³ x 1000

= 4.381 x 10⁶

Thus, the standard form of the given number is 4.381 x 10⁶

3 0

3 years ago

It is known that 10% of the calculators shipped from a particular factory are defective. what is the probability that at least o

seraphim [82]

P = 10% = 0.1
q = 1 - 0.1 = 0.9
P(at least one defective calculator) = P(1) + P(2) + P(3) + P(4) = 1 - P(0)

The brobability of a binomial distribution is given by
$P(x)=^nC_xp^xq^{n-x}$
where: n = 4
$P(0)=^4C_0(0.1)^0(0.9)^4=1\times1\times0.6561=0.6561$
Therefore,
P(at least one defective calculator) = 1 - 0.6561 = 0.3439

6 0

4 years ago