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3 years ago

5

Josh rode his bike 11.4 miles. Claire rode her bike 6.8 miles. Which explains how mental math can be used to find how much farth

er Josh rode than Claire?

2 answers:

rosijanka [135]3 years ago

6 0

Answer:

4.6 miles

Step-by-step explanation:

B. Add 0.2 to 6.8 to get 7. Subtract 7 from 11.4 to get 4.4. Then add 0.2 to 4.4 to get 4.6. Josh rode 4.6 miles farther than Claire.

Alex3 years ago

4 0

11.4 - 6.8 = 4.6. He rode 4.6 more miles than Claire

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Answer:

Part 1) $9x-7y=-25$

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case A) The equation of the diagonal AC is $x+y=0$

case B) The equation of the diagonal BD is $x-y=0$

Step-by-step explanation:

Part 1)

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The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

substitute the values

$M=(\frac{2-6}{2},\frac{-3+5}{2})$

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step 2

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Part 2)

step 1

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$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

substitute the values

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Find the slope

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step 3

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

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$m1=-\frac{1}{2}$

$m1*m2=-1$

therefore

$m2=2$

step 4

The equation of the line into point slope form is equal to

$y-y1=m(x-x1)$

we have

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step 5

Convert to standard form

Remember that the equation of the line into standard form is equal to

$Ax+By=C$

where

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Part 3)

In this problem AB and BC are the legs of the right triangle (plot the figure)

step 1

Find the midpoint AB

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step 2

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step 4

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step 5

Convert to standard form

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step 3

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Part 5)

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step 1

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step 2

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