Solve the equation 0.26 x+0.12(2 x+1000)=300

Mathematics

1 answer:

max2010maxim [7]3 years ago

3 0

Answer:

x=360

Step-by-step explanation:

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We want to find how many ounces of fertilzer we put for every 1 square meter

we have
(1/2oz)/(5/8m^2)
find x/1

(1/2)/(5/8)=x/1=x
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What are the solutions to the equation x2 +2x-8=0

Solnce55 [7]

Answer:

x=2 x=-4

Step-by-step explanation:

x^2 +2x-8=0

Factor

What numbers multiply to -8 and add to 2

-2*4 = -8

-2+4 =2

(x-2) (x+4) =0

Using the zero product property

x-2 =0 x+4 =0

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A boat leaves a dock and travels 9 miles due north and 12 miles due west. Find how far the boat is from the dock. Type the corre

adelina 88 [10]

Answer:

15 miles

Step-by-step explanation:

Let's say the dock is at the origin on a coordinate plane and each unit is 1 mile. If the boat travels 9 mile due north, that means that we move up from the origin (0, 0) 9 units to point A (0, 9). Now, this boat moves 12 miles due west, so we will go 12 units to the left of (0, 9) to point B (-12, 9). See the attached drawing (sorry for the crudeness).

Notice that this is a right triangle with legs of 9 and 12. That means the distance from the boat to the dock is just the hypotenuse, so use the Pythagorean Theorem: distance = $\sqrt{9^2+12^2} =\sqrt{81+144} =\sqrt{225} =15$