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sesenic [268]
3 years ago
10

PLEASE HELP!!!!!!!

Mathematics
2 answers:
Naily [24]3 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]3 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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