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mrs_skeptik [129]
2 years ago
10

There were 90 runners just start a race in the first half of the race 1/3 of them dropped out in the second half of the race 1/5

of the remaining runners dropped out how many runners finished a race
Mathematics
1 answer:
Eva8 [605]2 years ago
8 0

Answer:

6 runners finished the race

Step-by-step explanation:

it starts with 90 runners. then 1/3 of them dropped out in the second half of the race, that means you do 90 divided by 3

90 ÷ 3 = 30

Then, 1/5 of the runners remained.

That means you do 30 divided by 5

30÷ 5= 6

so the answer is 6 remaining runners finished the race.

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10 dozen sold x $4.50 = $45

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3 years ago
Find the distance between the points (-10, -9) and (-7, -1).
QveST [7]

Answer:

Distance: 8.5440037453175

Step-by-step explanation:

Distance: 8.5440037453175

Steps:

Distance (d) = √(-7 - -10)2 + (-1 - -9)2

= √(3)2 + (8)2

= √73

= 8.5440037453175

Slope and Angle:

ΔX = -7 – -10 = 3

ΔY = -1 – -9 = 8

Slope (m) =  

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= 2.6666666666667

θ =  

arctan( ΔY )

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= 69.443954780417°

Equation of the line:

y = 2.6666666666667x + 17.666666666667

or

y =  

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3

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3

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When y=0, x = -6.625

3 0
2 years ago
Read 2 more answers
A whale costs $14700 and depreciates in value by 8% per year. When will the whale be worth $100
sammy [17]

Answer:

x = 60

Step-by-step explanation:

The question is asking

$14,700 * (1 - 8%)^x = $100

$14,700 * (1 - 0.08)^x = $100

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(0.92)^x = $100/$14,700

log(0.92^x) = log($100/$14,700)

x * log(0.92) = log(0.0068027)

x = log(0.0068027)/log(0.92)

x = 59.85

Since this question is asking in terms of years, we always round up (in this case to 60), as it won't fully be worth $100 by the beginning of the 59th year.

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3 years ago
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20+38.50x \leq 405

4 0
1 year ago
HELP PLSS !!! Will mark as brainiest
Natasha_Volkova [10]

Answer:

1709.92cm^3

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197.92+1512=1709.92cm^3(whole shape)

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