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satela [25.4K]
3 years ago
13

A new family has moved in next door. You know the family has two children. What is the probability that both children are boys?

Mathematics
1 answer:
Snezhnost [94]3 years ago
8 0
There is a 50% probability.
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A rectangle has a perimeter 60m and base21 m what is its area
Komok [63]

Since you're given the base for the perimeter of the rectangle, you can solve this question quickly.

First, you multiply 21 by 2, because there are two bases to a rectangle.

You'll get 42, and you will have to do 60-42 to find the perimeter for the remaining two sides.

60-42 will give you 18, so you can divide that by 2 because there are two other sides, giving you 9.

Now you have the side lengths 21 and 9. Area is base*height, so you can multiply 21*9 and get 189.

Therefore, the area of the rectangle is 189 meters

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3 years ago
A city that has an elevation of 15 meters is closer to sea level than a city that has an elevation of -10 meters.
Darya [45]

Answer:

Step-by-step explanation: Your answer will be -10 because even though -10 is much lower than 15 it’s still closer to sea level.

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2 years ago
-10(x + 21) = -15x + 18<br> What value of x makes the equation true?
schepotkina [342]
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x = 45.6

Explanation:

-10(x + 21) = -15x + 18

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x = 45.6

(I’m not sure if this is what you’re looking for, but I hope it helped a bit)
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Step-by-step explanation:

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