3 years ago

Which of these ARE NOT equivalent?I NEED HELPPP

Mathematics

1 answer:

postnew [5]3 years ago

3 0

Answer:

the first one I'm pretty sure

Step-by-step explanation:

I tried the other ones

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On his drive from Montpelier, Vermont, to Columbia, South Carolina, Arthur averaged 51 mph. If he had been able to average 60 mp

Llana [10]

Answer:

Distance between Montpelier and Columbia is 1020

Step-by-step explanation:

51 mi/hr average:

d = 51 t

60 mi/hr average:

d t = 60*(t-3)

Substitute (1) into (2)

51 t = 60*(t-3)

51 t = 60 t + 180

9 t = 180

t = 20

d = 51 t

= 51 (20)

= 1020

let see distance is 1020 lets check

51 t = 60 * (t-3)

51 (20)= 60* (20-3)

1020 = 60*17

1020 = 1020

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3 years ago

Antonette gets $70\%$ on a 10-problem test, $80\%$ on a 20-problem test and $90\%$ on a 30-problem test. If the three tests are

notka56 [123]

Answer:

Percentage score will be 83.33 %

Step-by-step explanation:

We have given Antonette gets 70 % on 10 problem test

Let consider here here total problem = total marks

So marks get 10 10 problem test = 10×0.7 = 7

Marks get in 20 problem test = 20×0.8 = 16

And marks get in 30 problem test = 30×0.9 = 27

Now total marks get get by Antonette = 7 +16 + 27 = 50

And total marks = 60

So percentage score of Antonette $=\frac{50}{60}\times 100=83.33$ %

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3 years ago

Mrs. Wolboldt ordered her daughter a book that cost $18.00. Tax is 6%. How much tax will she have to pay????

UNO [17]

Answer:

$ 1.80

Step-by-step explanation:

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2 years ago

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Mumz [18]

Answer:

times the numbers

Step-by-step explanation:

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If m<IEF =71°, then what is m<AED?

igomit [66]

Answer:

m<AED = 109

Step-by-step explanation:

180-71=109

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3 years ago