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Komok [63]
3 years ago
11

Samuel was preparing for the triathlon. He did 3 activities every morning: Ran for 30 minutes, covering 4.5 miles. Swam for 20 m

inutes, covering 2/3 mi. biked for 45 min, covering 9 miles. What was Samuel's average speed during his morning training?
Mathematics
2 answers:
alex41 [277]3 years ago
4 0

Answer:

for running his avarage was 9 miles an hour

for swimming his speed was 2 miles an hour

for biking his avarage was 12 miles an hour

this means if we added all of this it would be 23/3 hours and 23/3 simplified into a decimal is 7.6 so his avarage time was 7.6 miles per hour

Brrunno [24]3 years ago
4 0

Answer:

7.6

Step-by-step explanation:

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The point-slope form of a line:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-9, -5) and (2, -4). Substitute:

m=\dfrac{-4-(-5)}{2-(-9)}=\dfrac{1}{11}\\\\y-(-5)=\dfrac{1}{11}(x-(-9))\\\\\boxed{y+5=\dfrac{1}{11}(x+9)}\leftarrow\boxed{\text{point-slope form}}

The standard form of a line:

Ax+By=C

y+5=\dfrac{1}{11}(x+9)                <em>multiply both sides by 11</em>

11y+55=1(x+9)

11y+55=x+9     <em>subtract 9 from both sides</em>

11y+46=x      <em>subtract 11y from both sides</em>

46=x-11y

\boxed{x-11y=46}\leftarrow\boxed{\text{standard form}}

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3 years ago
Plz help<br><br><br>If x:6 as 3:9, then x is equal to
sladkih [1.3K]

Answer:

x/6 = 3/9

9x = 18

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If x:6 as 3:9, then x is equal to  

---

Equation:

(x/6) = 3/9

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Step-by-step explanation:

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3 years ago
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Bumek [7]
A 8 thirteens !!!!!!!!
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Answer:

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Step-by-step explanation:

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