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3 years ago

There are 28 students in the class. Sixteen of those students are girls. What percentage of the class is girls?

1 answer:

8 0

$\text {Total students = 28}$

$\text {Total girls = 16}$

$\text {Percentage of girls in the class = } \dfrac{16}{28} \times 100$

$\text {Percentage of girls in the class = } \dfrac{1600}{28}$

$\text {Percentage of girls in the class = } \57.14 \ \%$

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Both circle A and circle B have a central angle measuring 135°. The ratio of the radius of circle A to the radius of circle B is

AveGali [126]

The answer is d because i just took a test and that was the answer

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2 years ago

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Write equation of a line in point slope form that passes through (3,8) and has a slope of 5?

hjlf

Answer:

y = 5x - 7

Step-by-step explanation:

(3 , 8) ; slope(m) = 5

Equation of the line: y - y₁ = m( x- x₁)

y - 8 = 5(x - 3)

y -8 = 5x - 5*3

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y = 5x - 15 +8

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2 years ago

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$\bf \textit{ratios relations for similar figures}
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\begin{array}{cccllll}
side&area&volume\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
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3 years ago

Which is an equation of a line that passes through the point (-4, 7) and is perpendicular to the line y = (1/2)x + 4

8_murik_8 [283]

Find the slope of the perpendicular line:

$y = \dfrac{1}{2} x + b$

$\text {Slope = } \dfrac{1}{2}$

$\text {Slope =} \boxed {\text{negative reciprocal}} \text { of the slope of the original line}$

$\text {Perpendicular Slope = -2}$

Form the equation:

$y = mx + b$

$y = -2x + b$

Find y-intercept given that the line passed through (-4, 7):

$y = -2x + b$

$7 = -2(-4) + b$

$7 = 8 + b$

$b = 7 - 8$

$b = -1$

Form the equation:

$y = -2x - 1$

$\boxed {\boxed {Answer: y = -2x - 1}}$

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3 years ago

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lianna [129]

Answer:

Step-by-step explanation:

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