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3 years ago

Level B

1 answer:

5 0

The number has 2 digits - let's call them x and y. The positive difference between the two combinations (lowest-highest and highest-lowest) is always equal to the positive difference of x and y, multiplied by 9.

For example:

76 and 67: 76 - 67 = 9 and ((7-6)*9) = 1*9 = 9
73 and 37: 73 - 37 = 36 and ((7-3)*9) = 4*9 = 36

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How do you solve 8x+5=3x+15

sladkih [1.3K]

8x + 5 = 3x + 15

8x - 3x = 15 - 5 (put same kinds of number on one side and change the signs)

5x = 10 (simplify)

5x/5 = 10/5 (simplify)

x = 2 (answer)

hope this helps

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3 years ago

The drawing below shows the dimensions of skims kite what is the area of Kim's kite

Leno4ka [110]

Answer:

48 square inches

Step-by-step explanation:

Given

See attachment for kite

Required

The area of the kite

The given kite has a triangular shape.

So, the area is:

$Area = 0.5 * base * height$

From the attachment

$base = 12in$

$height = 8in$

So:

$Area = 0.5 * 12in* 8in$

$Area = 48in^2$

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2 years ago

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aev [14]

Office printer is faster

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3 years ago

An electrician paid $398.40 total for 1,000 feet of wire.How much does he have to pay per foot a wire?

alexdok [17]

Divide the total spent by the total feet:

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Round the answer as needed.

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2 years ago

A bag of marbles has 6 red marbles and 7 green marbles in it. What is the percent probability of pulling a green marble out of t

soldi70 [24.7K]

Answer:

If a bag contains 4 red marbles, 3 blue marbles, and 7 green marbles and a marble is randomly selected from the bag, what is the probability that it is blue? P=3/(3+4+7)=3/14 because each of 14 marbles is equally likely to be drawn.

Step-by-step explanation:

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3 years ago