3 years ago

Find two numbers that add up to 158. The greater number is 40 more than the lesser number

Mathematics

1 answer:

bija089 [108]3 years ago

6 0

Answer:D

Step-by-step explanation:

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Answer:

$\frac{ - 8 - \sqrt{288} }{2 \times ( - 2)} = \frac{ - 8 -16.97 }{ - 4} = \frac{ - 24.97}{ - 4} = 6.2425$

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3 years ago

on saturday , Grace baby sat for x hours and was paid $9 per hour . Willow baby -sat for y hours and was paid $8 per hour. which

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Step-by-step explanation:

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3 years ago

Please solve for x. x/16 = 9/2

VladimirAG [237]

Answer:

x = 72

Step-by-step explanation:

$\frac{x}{16}=\frac{9}{2} \\\\$

Start by multiplying 16 to both sides

$(\frac{16}{1}) * \frac{x}{16} = (\frac{16}{1}) * \frac{9}{2}$

16s on the left-hand cancel

$x =(\frac{16}{1}) * (\frac{9}{2})$

$x =( \frac{144}{2} )$

we can simplify that expression

$x = 72$

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3 years ago

Give a direct proof for each of the following statements about the integers.

kkurt [141]

Answer:

See explanation below

Step-by-step explanation:

If x is even, then we know that x = 2k for a k ≥1

If y is odd, then we know that y = 2j -1 for a j≥1

Therefore, x + y can be written similarly as:

$x+y$

$2k +(2j-1)\\2(k+j)-1$

And clearly, 2(k + j) -1 is odd.

Therefore, the sum x + y is an odd number.

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3 years ago

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. Find the probability

777dan777 [17]

$|\Omega|=20+16+4=40\\|A|16+4=20\\\\P(A)=\dfrac{20}{40}=\dfrac{1}{2}$

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3 years ago

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