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2 years ago

Maximo can hike 2 miles in 30 minutes. At this rate, how long will it take him to

Mathematics

2 answers:

omeli [17]2 years ago

8 0

Answer:

It will take Maximo 105 minutes to complete a 7-mile hike.

Step-by-step explanation:

First, we must find the unit rate to discover how many minutes Maximo walks in one mile.

Minutes/miles= 30/2= 15/1

Next, now that we know that it takes him 15 minutes to walk 1 mile, we must multiply it by 7 miles. 15/1 x 7.

This makes up end with 105 minutes to complete a 7-mile hike. (including labels)

Naddik [55]2 years ago

6 0

Answer:

105 minutes

Step-by-step explanation:

First you divide 30 by 2 then you get 15. So you just multiply 7 by 15

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What is the sum of 20x^2-10x-30

ivann1987 [24]

Answer:

The sum of the roots is 0.5

Step-by-step explanation:

The correct question is

What is the sum of the roots of 20x^2-10x-30

we know that

In a quadratic equation of the form

$ax^{2} +bx+c=0$

The sum of the roots is equal to

$-\frac{b} {a}$

in this problem we have

$20x^{2} -10x-30=0$

$a=20\\b=-10\\c=-30$

substitute

$-\frac{(-10)} {20}=0.5$

Verify

Find the roots of the quadratic equation

The formula to solve a quadratic equation is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

$a=20\\b=-10\\c=-30$

substitute

$x=\frac{-(-10)\pm\sqrt{-10^{2}-4(20)(-30)}} {2(20)}$

$x=\frac{10\pm\sqrt{2,500}} {40}$

$x=\frac{10\pm50} {40}$

$x=\frac{10+50} {40}=1.5$

$x=\frac{10-50} {40}=-1$

The roots are x=-1 and x=1.5

The sum of the roots are

$-1+1.5=0.5$ ----> is ok

5 0

3 years ago

PLZ HELP I AM FAILING MATH!!

Yuliya22 [10]

Answer:

Step-by-step explanation:

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3 years ago

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KengaRu [80]

Answer:

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Step-by-step explanation:

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