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Advocard [28]
3 years ago
11

Josie is training for a race.the ratio of the number of minutes she runs to the number of miles she runs is 24 to 3. She plans t

o run 10 miles. how many minutes will it take her
Mathematics
1 answer:
patriot [66]3 years ago
4 0

Answer:

  80 minutes

Step-by-step explanation:

The ratio can be simplified and rewritten:

  minutes : miles = 24 : 3 = 8 : 1 = 80 : 10

It will take Josie 80 minutes to run 10 miles at her 8 minutes/mile pace.

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Step-by-step explanation:

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3 years ago
Please help me do to night
Vesna [10]

Answer:

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Step-by-step explanation:

10(-0.4x+3y)= 10(-0.4x)+10(3y)= -4x+30y

10(-0.4(3)+3(2))

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2 years ago
Given the two perallel line ,determine the measure of x a= x=125 b= x=135 c= x=45 d= x=55
dedylja [7]

Answer:a

Step-by-step explanation:

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3 years ago
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Sedbober [7]

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Find a third-degree polynomial equation with rational coefficients that has roots -4 and 6 + i.
dolphi86 [110]

Answer:

x³ - 8x² - 11x + 148

Step-by-step explanation:

Given that x = 6 + i is a root then x = 6 - i is also a root

Complex roots occur as conjugate pairs.

The factors are therefore (x - (6 + i)) and(x - (6 - i))

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The polynomial is the product of the factors, that is

p(x) = (x + 4)(x - (6 + i))(x - (6 - i))

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      = (x + 4)(x² - 12x + 36 + 1)

      = (x + 4)(x² - 12x + 37) ← distribute

      = x³ + 4x² - 12x² - 48x + 37x + 148

      = x³ - 8x² - 11x + 148

 

3 0
3 years ago
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