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2 years ago

HELP!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Art [367]2 years ago

8 0

Answer: 9/12 plus 4/12 = 13/12 or 1 1/12

Step-by-step explanation:

snow_tiger [21]2 years ago

6 0

Answer: 13/12

Step-by-step explanation:

Common denominator:12

9/12 plus 4/12 equals 13/12 equals 1 1/12

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Find the constant of proportionality if y is directly related to x when y = 12 and x = 6

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Answer:

Step-by-step explanation:

Please see attached picture for full solution.

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3 years ago

4 questions 20 points

Dvinal [7]

1. Cross multiply
35x = 5(11)
35x = 55
Divide both sides by 35
x = 55/35
x = 11/7

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Cross multiply
3x = 8(x - 2)
3x = 8x - 16
Subtract 8x from both sides
-5x = -16
divide both sides by -5
x = -16/-5
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cross multiply
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subtract 5a from both sides
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4. (1/3)x - 4 = (2/3)x + 6
multiply each term by 3 to clear the fractions
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subtract x from both sides
-12 = x + 18
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3 years ago

Willie left the mall and traveled toward the town hall at an average speed of 40 km/h. Gabriella left two hors later and travele

mezya [45]

Answer:

<em>3 hours</em>

Step-by-step explanation:

Given that:

Average speed of Willie = 40 km/h

After 2 hours, Gabriella traveled in opposite direction at an speed of 70 km/h.

After some time, they are 410 km apart.

To find:

Number of hours = ?

Solution:

For the first two hours, Willie traveled alone.

Formula for distance:

$Distance = Speed \times Time$

Distance traveled in two hours by Willie = $40 \times 2 = 80\ km$

Now, they both travel in opposite directions.

So the relative speed is = 40 + 70 = 110 km/h

The distance traveled by them = 410 - 80 = 330 km

$Time\ taken = \dfrac{330}{110} = 3\ hours$

Therefore, the time taken is <em>3 hours.</em>

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2 years ago

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I believe it would be 45 is greater than or equal to 3x + (3x-1) + [(3x-1)-4]

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storchak [24]

Answer:

Step-by-step explanation:

43 is a prime number

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