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3 years ago

Abbey's class is made up of 21 students--11 girls and 10 boys. What is the ratio of girls to boys?

Mathematics

2 answers:

DanielleElmas [232]3 years ago

7 0

Answer:

B is the number one answer

dybincka [34]3 years ago

4 0

B for number 1 and i’ll figure out the rest

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The time it takes for a race car to finish a lap (to the nearest tenth of a second) is represented by the variable t. Which set

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Velocity=Distance/Time
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3 years ago

A trapezoid is broken into 2 triangles and 1 rectangle. The triangles both have a base of 2 meters and a height of 5 meters. The

Lemur [1.5K]

Answer:

Part 1) The trapezoid has an area of $20\ m^2$

Part 2) The kite has an area of $21\ m^2$

Part 3) The area of the trapezoid is less than the area of the kite

Step-by-step explanation:

Part 1

Find the area of trapezoid

we know that

The area of trapezoid is equal to the area of two congruent triangles plus the area of a rectangle

$A=2[\frac{1}{2} (2)(5)]+(2)(5)$

$A=10+10=20\ m^2$

Part 2

Find the area of the kite

we know that

The area of the kite is equal to the area of two congruent triangles

$A=2[\frac{1}{2} (7)(3)]=21\ m^2$

Part 3

Compare the areas

The trapezoid has an area of $20\ m^2$

The kite has an area of $21\ m^2$

$20\ m^2< 21\ m^2$

therefore

The area of the trapezoid is less than the area of the kite

5 0

4 years ago

Read 2 more answers

Could someone help me please

mash [69]

Answer:

Step-by-step explanation:

The number is proportional the central angle in the chart. 360° represents all 72 of the people, so 140° (the size of the Oblivion sector) will represent ...

(140°/360°)×(72 people) = 28 people

6 0

3 years ago

Use the f(x) given below to determine the transformed functions. f(x) = 3x + 1 f(x + 2) = f(x) + 2 = pls help

Katyanochek1 [597]

Answer:

Step-by-step explanation:

7 0

3 years ago

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A rectangular piece of stained glass has the dimensions shown in the diagram. What is the probability that a random leaf that la

weeeeeb [17]

Answer:

The correct option is D) $\frac{2}{3}$

Step-by-step explanation:

Consider the provided figure.

We need to find the probability that a random leaf that lands on the rectangle lands within the section shaped like a trapezoid.

For this first find the total area as shown:

The given figure is a rectangle.

The area of rectangle is $l\times b$

Where, l = 6 cm + 3 cm = 9 cm and b = 5cm

Therefore the area of the rectangle is;

Area of rectangle = $9cm\times 5cm=45cm$

Now find the area of trapezoid.

The area of trapezoid is: $\frac{a+b}{2}h$

Where h is the height and a and b are the parallel sides.

Area of trapezoid = $\frac{9+3}{2}\times 5=30$

Thus, the area of trapezoid is 30 cm.

Therefore, the probability that a random leaf that lands on the rectangle lands within the section shaped like a trapezoid is:

$Probability=\frac{\text{Area of trapezoid}}{\text{Area of rectangle}}$

$Probability=\frac{30}{45}=\frac{2}{3}$

Hence, the correct option is D) $\frac{2}{3}$

3 0

3 years ago