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stellarik [79]
3 years ago
12

Which group represents equivalent ratios?

Mathematics
1 answer:
ladessa [460]3 years ago
3 0

Answer:

20%, 1/5, 0.2

Step-by-step explanation:

<u><em>Verify each case</em></u>

case 1) we have

20%, 1/4, 0.2

we know that

20\%=20/100=0.20

\frac{1}{4}=0.25

therefore

0.20=0.20\neq0.25

This group not represents equivalent ratios

case 2) we have

25%, 1/4, 0.2

we know that

25\%=25/100=0.25

\frac{1}{4}=0.25

therefore

0.25=0.25\neq0.20

This group not represents equivalent ratios

case 3) we have

20%, 1/5, 0.2

we know that

20\%=20/100=0.20

\frac{1}{5}=0.20

therefore

0.20=0.20=0.20

This group represents equivalent ratios

case 4) we have

25%, 1/5, 0.2

we know that

25\%=25/100=0.25

\frac{1}{5}=0.20

therefore

0.25\neq0.20=0.20

This group not represents equivalent ratios

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svet-max [94.6K]

Answer:

b=-0.0019a + 215

at 2500 ft, b=210.25 degrees F

Step-by-step explanation:

First find the slope. a=altitude, b = temperature

slope is b2-b1 / a2-a1

points are (8200, 199.42) and (4700, 206.07)

(206.07 - 199.42) / (4700-8200)

= 6.65/ -3500

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we have b = -0.0019a + intercept

plug in a point to find intercept

199.42 = -0.0019*8200 + intercept

intercept = 199.42 + 15.58 = 215

b=-0.0019a + 215

at a=2500 ft, substitute into equation

b= -0.0019*2500 + 215

= -4.75 + 215

= 210.25 degrees F

please give thanks by clicking heart button :)

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