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xenn [34]
3 years ago
7

About 25% of the students in Mr. Goodman's class got an Aon their last math test. Of those, 50% are girls. The class has 12 girl

s and 16 boys. Is it
reasonable to say 6 girls got an Aon the test?
A No, because 6 is not 25% of 28.
O
B. No, because 6 girls is 50% of all the girls in the class, and not all of the girls got A's.
O
C. Yes, because 50% of 12 is 6.
D
Yes, because more girls than boys got A's.
Mathematics
1 answer:
bogdanovich [222]3 years ago
3 0
I think the answer is c
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juan earns $11.60 an hr. he gets a 10% raise eaxh year. what will his rate of pay be after two years?
Leni [432]
10% of 11.60 is 1.60, which means that his first raise will make his rate $12.76 per hour. 10% of 12.76 is 1.276, but since were talking about money I’ll round that up to 1.28.

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8 0
3 years ago
The quantity y varies directly with the square of x and inversely with z. When x is 9 and z is 27, y is 6. What is the constant
ira [324]
\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------

\bf \stackrel{\textit{\underline{y} varies directly with the square of \underline{x} and inversely with \underline{z}}}{y=\cfrac{kx^2}{z}}
\\\\\\
\textit{we also know that }
\begin{cases}
x=9\\
z=27\\
y=6
\end{cases}\implies 6=\cfrac{k9^2}{27}
\\\\\\
\cfrac{27\cdot 6}{9^2}=k\implies 2=k
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3 years ago
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Keith_Richards [23]

Answer:

Step-by-step explanation:

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8 0
3 years ago
Find m angle d for m angle b = 65<br> The figure is not drawn to scale
Aleksandr [31]

Answer:

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As property of tangent line from outside of circle (angle OAD = angle OCD = 90 deg):

=> AOC + D = 180

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=> D = 180 - 130 = 50 deg

Hope this helps!

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8 0
3 years ago
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30.05/2.75= 10.9 which means 10 times.

8 0
4 years ago
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