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nika2105 [10]
3 years ago
7

Which answer is correct and why?

Mathematics
2 answers:
g100num [7]3 years ago
4 0
I say E. This is because our class studdied this not to long ago so that is what I thing]
Ivanshal [37]3 years ago
3 0
The answer is C.) 62.
Subtract 28 from 180, leaving 152, then subtract 90 since it's a right triangle because 2 sides are equivalent, leaving 62.
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Felicia wanted to find the number of boys in the school band if 30% of the 50 students are boys. Is her answer correct? Explain
docker41 [41]

Answer:

Creo que con 15

Step-by-step explanation:

50 -------> 100%

X ---------> 30%

X = (50*30)/100

X= 15 boys

4 0
3 years ago
Read 2 more answers
Solve and factorise x^2-8x+16=0
goblinko [34]

Answer:

x=4x therefore the answer is 4x

Step-by-step explanation:

x^2-8x+16=0

7 0
3 years ago
Ravi sold 1/5 of his apples. He gave his friend 2/5 of the remainder. Ravi remained with 60. How many apples did ravi have at fi
zheka24 [161]

Answer:

The number of Apples did Ravi have at first is 125 .

Step-by-step explanation:

Let the number of Apples did Ravi have at first = x

The Apples which is sold by Ravi = \frac{1}{5} of x

So, remainder now = x - \frac{1}{5} of x = \frac{4}{5} of x

The apples given to his friend = \frac{2}{5} of \frac{4}{5} x

I.e The apples given to his friend =  \frac{8}{25} of x

Now, The remaining Apples did Ravi have = 50

∴ According to question

\frac{4}{5} of x -  \frac{8}{25} of x = 60

Or,  \frac{20-8}{25} of x = 60

Or,  \frac{12}{25} of x = 60

∴ x = \frac{25\times 60}{12} = 125

Hence The number of Apples did Ravi have at first is 125 .  Answer

8 0
3 years ago
Explain why the exponents cannot be added in the product 12^3 * 11^3
jek_recluse [69]
Because they do not have like bases. 
4 0
2 years ago
What is the upper quartile, Q3, of the following data set? 54, 53, 46, 60, 62, 70, 43, 67, 48, 65, 55, 38, 52, 56, 41
scZoUnD [109]
The original data set is 
{<span>54, 53, 46, 60, 62, 70, 43, 67, 48, 65, 55, 38, 52, 56, 41}

Sort the data values from smallest to largest to get
</span><span>{38, 41, 43, 46, 48, 52, 53, 54, 55, 56, 60, 62, 65, 67, 70} 
</span>
Now find the middle most value. This is the value in the 8th slot. The first 7 values are below the median. The 8th value is the median itself. The next 7 values are above the median. 

The value in the 8th slot is 54, so this is the median

Divide the sorted data set into two lists. I'll call them L and U 
L = {<span>38, 41, 43, 46, 48, 52, 53}
U = {</span><span>55, 56, 60, 62, 65, 67, 70}
they each have 7 items. The list L is the lower half of the sorted data and U is the upper half. The split happens at the original median (54).

Q3 will be equal to the median of the list U
The median of U = </span>{<span>55, 56, 60, 62, 65, 67, 70} is 62 since it's the middle most value. 

Therefore, Q3 = 62

Answer: 62</span>
4 0
3 years ago
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