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3 years ago

I need help for this multiply choice geometry problem

Mathematics

1 answer:

Misha Larkins [42]3 years ago

5 0

Answer:

Answer B

Step-by-step explanation:

As we can see in the figure, AB is parallel with DE, AE and BD intersect each other at point C.

=> So that ACB and ECD are two congruent triangles.

According to the features of two congruent triangles, we have:

AC/EC = CB/CD = AB/ED

=> 4/8 = 3/6 = AB/ ED

=> AB/ ED = 1/2

=> AB = 1/2 ED

=> AB = 1/2 x 3

=> x= 0.5

So the value of x if 1.5

Correct answer is B

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There are 4 chaperone for every 15 students who attend a school field trip. if there were 135 students, how many adults would th

fredd [130]

Let's just make 15 students a group. how many groups are there if there r 135 student? 135/15 = 9 groups.
so if each group have 4 adults just multiply 9 by 4,
therefore there will be 36.adults.

3 0

3 years ago

Read 2 more answers

Below is a list of city elevations.

Nezavi [6.7K]

Answer:

Oxford, MS, has the highest elevation.

Death Valley, CA, has the lowest elevation.

The elevation of New Orleans, LA, is at sea level.

The elevation of Death Valley, CA, is the furthest from sea level.

Step-by-step explanation:

Given the elevations of few cities as follows:

Elevation of Oxford, MS = 178 feet

Elevation of Death Valley, CA = -282 feet

Elevation of New Orleans, LA = 0 feet

Elevation of Palm Beach, FL = 13 feet

To find:

The true statement of the following:

Oxford, MS, has the highest elevation.

Death Valley, CA, has the lowest elevation.

West Palm Beach, FL, has the lowest elevation.

The elevation of Death Valley, CA, is at sea level.

The elevation of New Orleans, LA, is at sea level.

The elevation of Death Valley, CA, is the furthest from sea level.

The elevation of New Orleans, LA, is the furthest from sea level.

Solution:

First of all, let us put the given elevations in ascending order.

Smallest value is -282 feet, then 0 feet, then 13 feet and then 178 feet.

-282 < 0 < 13 < 178 feet

i.e.

Elevation of Death Valley < Elevation of New Orleans < Elevation of West Palm Beach < Elevation of Oxford

Elevation of 0 feet means that it is at the sea level i.e. New Orleans is at sea level.

Largest value is 178 i.e. the highest elevation is of Oxford.

Minimum value is -282 i.e. the lowest elevation is of Death Valley.

Death valley is furthest from sea level at a distance of 282 feet.

Therefore, the answer is:

Oxford, MS, has the highest elevation.

Death Valley, CA, has the lowest elevation.

The elevation of New Orleans, LA, is at sea level.

The elevation of Death Valley, CA, is the furthest from sea level.

8 0

2 years ago

Three times Jeff's age plus 3 is Maria's age.<br> Maria is 48. What is Jeff's age?

S_A_V [24]

Answer:

Ok so 48*3=144 and 144+3=147

Step-by-step explanation:

so 48*3=144+3=147 so that would be your answer I think I did that right

8 0

3 years ago

The ratio of the number of girls to the number of boys is 3:5 . if the number of boys os 12 more than the number of girls ,calcu

kvv77 [185]

Answer:

48 students in the class

Step-by-step explanation:

The ratio of girls to boys is 3 : 5 = 3x : 5x ( x is a multiplier ) , then

5x = 3x + 12 ( 12 more boys than girls )

Subtract 3x from both sides )

2x = 12 ( divide both sides by 2 )

x = 6

Then

number of girls = 3x = 3 × 6 = 18

number of boys = 5x = 5 × 6 = 30

total students in class = 18 + 30 = 48

7 0

3 years ago

In order to remove water from a flooded basement, two pumps, each rated at 40 gallons per minute, are used. After half an hour,

Scrat [10]

Answer:

3600 gallons of water was removed from the basement.

Step-by-step explanation:

Given:

Rate of each pump = 40 gallons/min

We need to find find the number of gallons of water removed from the basement.

Solution:

Now Given:

After half an hour, the one pump burns out.

Now we know that;

1 hour = 60 mins

$\frac12$ hour = $\frac{60}{2}=30\ mins$

Now for 30 mins both the pumps were working and removing the water.

So we can say that;

Water remove for first 30 mins = $40\times2\times30=2400\ gallons$

Also Given:

the second pump finishes removing the water half an hour later.

So we can say that;

Water removed for next 30 mins = $40\times 30\times1 =1200\ gallons$

Now we can say that;

Total water removed from the basement is equal to sum of Water remove for first 30 mins and Water removed for next 30 mins .

framing in equation form we get;

Total water removed from the basement = $2400+1200=3600\ gallons.$

Hence 3600 gallons of water was removed from the basement.

6 0

3 years ago