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sesenic [268]
2 years ago
10

PLEASE HELP!!!!!!!

Mathematics
2 answers:
Naily [24]2 years ago
5 0

Answer:

twice the number of 30 second ads = the number of 60 second ads

Step-by-step explanation:

I can not see much work done for explanation of the error, but  

let x be the ad pf 30 second

y be the ad of 60 second

so both add together will make 12 minutes, so by counting the time in seconds we will multiply 12 by 60  so we will have a equation

x +y = 12 x 60

x+y = 720 ----------1

as x is 30 second so we can say y = 2x---------- equation 2

adding value of y in equation 1

x+ 2x= 720

3x= 720

x= 720/3=  240

adding value of x in equation 2

y= 2(240)

y= 480

so from equation 1 and 2.,   x = 240     y =480

hodyreva [135]2 years ago
4 0

Answer:Zöe set up an equation that would translate to “twice the number of 30 second ads = the number of 60 second ads.”  She should have used

Step-by-step explanation:

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There are 3 identical wooden blocks that are 50 inches long, 5 inches wide and 3 inches thick. If you glue them together, what i
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Answer:

336 inches of surface area

Step-by-step explanation:

The explanation is the picture.  I hope this answers your question.

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A very small dinosaur, the Microraptor, was only 1.3 feet long, One of the larger dinosaurs, the diplodocus, was about 91 feet l
snow_lady [41]
Divide 90 by 1.3 and you will get your answer.

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Jerome ate 4/11 of the Pizza how much did that leave for Zachary​
ratelena [41]

Answer:

7/11 of the Pizza was left for Zachary.

Step-by-step explanation:

Zachary had 1 - 4/11

= 11/11 - 4 /11

= 7/11.

5 0
2 years ago
In ΔXYZ, x = 71 cm, y = 91 cm and z=71 cm. Find the area of ΔXYZ to the nearest square centimeter.
anyanavicka [17]

since its an isoscelies trangle, they probably wanted you to do base times height

make a 71-91/2-x x triangle

where x is the height of the triangle to the base 91 and 71 is the hypothenuse

and then do bh/2

or

use heron's formula

s= 71+91/2

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have fun solving that

5 0
2 years ago
Adam must fly home to city A from a business meeting in city B. One flight option flies directly to city A from​ B, a distance o
g100num [7]

Answer:

The value  is  k =109.6 \ miles

Step-by-step explanation:

The diagram illustrating the question is shown on the first uploaded image

From the question we are told that

   The distance from city A to B is   AB =  467.3 miles

   The bearing from B to  C is  \theta_{BC} =  N 28.7E

   The bearing from B to  A is  \theta_{BA} =  N 60.7E

   The  bearing from A to  B is   \theta_{AB} =  S60.7W

    The  bearing from A to  C is   \theta_{AC} =  S79.1W

Generally from the diagram

     \theta_A  =  180 - 60.7 -79.1

=>  \theta_A  =  40.2 ^o

Also

     \theta_B  =  32^o

and  

      \theta_C  =  180 - (\theta_A  +\theta_B )

=>   \theta_C  =  180 - (40.2  + 32 )

=>   \theta_C  =  107.8 ^o

Generally according to Sine Rule

     \frac{BC}{sin (\theta_A)}  = \frac{CA}{sin (\theta_B)} =\frac{AB}{sin (\theta_C)}

=>   \frac{BC}{sin (40.2)}  = \frac{CA}{sin (32)} =\frac{467.3 }{sin (107.8)}    

So

     \frac{BC}{sin (40.2)}  = \frac{467.3 }{sin (107.8)}

=>  BC = 316.8 \ miles

Also  

    \frac{CA}{sin (32)} =  \frac{467.3 }{sin (107.8)}

    CA = 260 .1 \ miles

Generally the additional flyer miles that Adam will receive if he takes the connecting flight rather than the direct​ flight is mathematically represented as

      k = [CA +BC]  - AB

=>     k = [260 .1 +316.8]- 467.3

=>  k =109.6 \ miles

4 0
2 years ago
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