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3 years ago

12

A truck drove at an average rate of 45 miles per hour on the highway and 20 miles per hour once it entered the city. If it took

the trip, which was 100 miles, in 3 hours, how much of it was in the city?

2 answers:

SIZIF [17.4K]3 years ago

7 0

45 * 1.6 + 20 * 1.4 = 100
72 + 28 = 100
100 = 100

denis-greek [22]3 years ago

4 0

Answer:

28

Step-by-step explanation:

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2 years ago

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2 years ago

Read 2 more answers

Jackson used the process of completing the square to solve the equation 2x2−12x=−6.

Nikolay [14]

Answer:

$x=3-\sqrt{6},x=3+\sqrt{6}$

Step-by-step explanation:

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$2x^2-12x=-6$

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so, firstly we will complete square

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step-1:

Factor 2 from both sides

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step-2:

Simplify it

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step-3:

Add both sides 3^2

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now, we can complete square

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step-4:

Take sqrt both sides

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step-5:

Add both sides by 3

we get

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2 years ago

Which equation describes a line parallel<br> to y= 4x+ 5 through point (-2, 1)?

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Hi there!

For a line to be PARALLEL, it must contain the same slope.

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x1 = x-coordinate of given point

m = slope

Plug in the values:

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Simplify:

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8 0

2 years ago