4 years ago

Explain how to solve the equation 312.50 = a + 0.25a to find the value of a

Mathematics

1 answer:

julsineya [31]4 years ago

8 0

The answer is 312.25 = a

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5t-9=-3t+7. I need help this is equations variables both sides

MariettaO [177]

Answer:

t = 8

Step-by-step explanation:

5t - 3t - 9 = 7

5t - 3t = 7 + 9

2t = 7+ 9

2t = 16 <- divide

Answer"

t = 8

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Step-by-step explanation:

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What is the value of the underlined digit write the number 49

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4 tens, which is 40 and 9 ones, which is 9 40+9
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What do you get when you multiply 3x(8x-11)

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4 years ago

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Triangle J K L is shown. Angle J K L is a right angle. An altitude is drawn from point K to point M on side L J to form a right

KiRa [710]

Answer:

$3\sqrt{5}\ units$

Step-by-step explanation:

<u>Theorem 1:</u> The height of right triangle drawn from the right angle to the hypotenuse divides the hypotenuse into two segments. The length of the altitude is the geometric mean of these two segments. Hence,

$KM^2=ML\cdot MJ\\ \\6^2=ML\cdot 3\\ \\3ML=36\\ \\ML=12\ units$

<u>Theorem 2:</u> In a right triangle, the altitude drawn from the right angle to the hypotenuse divides the hypotenuse into two segments. The length of each leg of the right triangle is the geometric mean of the lengths of the hypotenuse and the segment of the hypotenuse that is adjacent to the leg.

Thus,

$KJ^2=MJ\cdot ML\\ \\KJ^2=3\cdot (3+12)\\ \\KJ^2=3\cdot 15\\ \\KJ^2=45\\ \\KJ=\sqrt{45}=3\sqrt{5}\ units$

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3 years ago