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Bad White [126]
3 years ago
10

Kevin is 3 years older than Daniel. Two years ago, Kevin was 4 times as old as Daniel. How old is Daniel now?

Mathematics
1 answer:
Radda [10]3 years ago
5 0

Answer:

Kevin is 6 years old and Daniel is 3 years old

Step-by-step explanation:

They are now 3 years apart but two years ago, they were 4 and 1 years old, so Kevin was 4 times older than.

Hope this helped :)

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For the diagram at right, write and solve an equation to find x
Tomtit [17]

Answer:

x = 24

Step-by-step explanation:

The formula for determining the sum of interior angles is:

(n-2) * 180

4 * 180 = 720

Therefore to determine an equation for x, we must add up all the interior angle equations and set them equal to 720.

(2x+3) +(3x+12) + (7x+14) + (9x+2) + (4x+8) + (3x+9) = 720\\28x + 48 = 720\\28x = 672\\x = 24

The equation and answer above shows how to find x, which equals 24.

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2 years ago
What is the answer to<br> (6^-2/7^5)^-11
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Step-by-step explanation:

7 0
3 years ago
There are 4 red and 6 green marbles in a jar. What is the probability of drawing two green marbles, with replacement?
jeka57 [31]

Answer:

\frac{9}{25}

Step-by-step explanation:

Number of red balls = 4

Number of green balls = 6

Total number of balls = 6+4 =10

Probability of drawing a green marble is given as

⇒ \frac{Number\ of\ green\ balls}{Total\ number\ of\ balls}

⇒ \frac{6}{10}

The ball is replaced after drawing.

Probability of drawing a green ball a second time will be:

⇒ \frac{Number\ of\ green\ balls}{Total\ number\ of\ balls}

⇒ \frac{6}{10}

Thus, probability of drawing 2 green balls with replacement can be given as:

⇒  (Probability of drawing a green marble) \times (Probability of drawing a green ball a second time)

⇒ \frac{6}{10}\times\frac{6}{10}

⇒ \frac{36}{100}

Simplifying fraction by dividing numerator and denominator by their GCF.

⇒ \frac{36\div 4}{100\div 4}

⇒ \frac{9}{25} (Answer)

8 0
3 years ago
What is the answer to B
Nastasia [14]
6,900/1000 I think. Idk.
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3 years ago
Read 2 more answers
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