Answer:
50 miles
Step-by-step explanation:
See the step-by-step solution in the picture attached below.
I hope this answer will help you. Have a nice day !
Mrs.Baca uses a phone card to call her relatives in Colombia.It costs her 45 cents to talk for 15 minutes.How long can she talk
2 answers:
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Hi there!
<u><em>FACTS</em></u><em> :</em>
<em>To see if multiple ratios are proportional, you can write them as fractions, reduce them, and compare them. If the reduced fractions are all the same, then you have proportionnal ratios. You can also write them as fractions and divide the numerator (top number) by its denominator (bottom number), and compare the decimal numbers the same way you would compare the fractions (I personnaly find this method easier because you don't need to simplify the fractions).</em>
<u>STEPS TO ANSWER:</u>
x = 1 ; y = 90 → 1 ÷ 90 = <u>0.01111111...</u>
x = 2 ; y = 150 → 2 ÷ 150 = <u>0.0133333...</u>
x = 3 ; y = 210 → 3 ÷ 210 = <u>0.01428571</u>
x = 4 ; y = 270 → 4 ÷ 270 = <u>0.0148148...</u>
x = 5 ; y = 330 → 5 ÷ 330 = <u>0.01515152</u>
<em>** You didn't really need to calculate them all because even the first two decimal numbers weren't equivalent, but I wanted to show you the whole process so I calculated them all.</em>
⇒ If you compare all the decimals you got, you can easily see that they are not the same, which means that the ratios between the values of "x" and the values of "y" are not proportional. Therefore, George's reasoning wasn't good.
There you go! I really hope this helped, if there's anything just let me know! :)
Try this option:
1. Common view of hyperbola equation is:
2. hyperbolas are: 2x²+4x-5y²-10y+57=0 and -x²+12x+3y²+7y+11=0.
1. Common view of hyperbola equation is:
2. hyperbolas are: 2x²+4x-5y²-10y+57=0 and -x²+12x+3y²+7y+11=0.