Mathematics: Ratios and Rates Express each ratio as a fraction in the simplest form 1) 30 miles out of 30 miles 2) B blue cars out of 12 cars 3) 7 quarts to 84 quarto 4) 25 cups to 35 cups 5) 9 gallons to 36 gallons 6) 54 bootles out of 60 insects 7) 10 pennlos to 45 pennies B) 28 dimes to 48 dimos Express each phrase as a rate and unit rate (Round your answer to the nearest hundredth) Rate Unit Rate 9) 130 miles on 4 gallons of gas 10) 9 inches of sno w in 7 hours 11) 6 calculators cost $150.00 12) 8 pencils

Ratios and Rates Express each ratio as a fraction

breannaasmith1122

06.02.2022

1) 1

2) 12/B

3) 12

4) 1 2/5

5) 4

6) 1 1/10

7) 4 1/2

8) 1 7/10

9) 32 1/2

10) 9

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RioQNA

02.03.2023

See explanation below.

Step-by-step explanation:

Part A:

(i). They both correct because they could have a third degree polynomial that crosses the x-axis 3 times.

(ii). To find the zero's of the first one, set function equal to zero and use zero factor principle given as:

$\mathrm{Zero\:Factor\:Principle:\quad \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

So, we have:

$\mathrm{Solve\:}\:x+2=0:\quad x=-2\\\\\mathrm{Solve\:}\:x-1=0:\quad x=1\\\\\mathrm{Solve\:}\:x-2=0:\quad x=2$

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