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Dafna11 [192]
2 years ago
12

The oldest child in a family of four children is twice as old as the yougest. The two middle children are 12 and 16 years old. I

f the average age of the children is 15.25 , how old is the youngest child?
Mathematics
1 answer:
Vladimir [108]2 years ago
6 0
Four children average is 15.25 so ages must add to 61
61-12-16=33
11 and 22 go into 33
Youngest is 11
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Hey there!

If we use pemdas:

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We know we have to evaluate the exponent first. Two to the rid power is equal to 8. Therefore, we have:

2 - 4/2 + 8

Next, we do the division. -4/2 = -2, so we have:

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Two families leave Raleigh to go to Disney. The tables below show the distance each family drove at a constant speed. what famil
Leno4ka [110]

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What is the length of HG?
Leviafan [203]

Answer:

HG = 5

Step-by-step explanation:

Given

HE = 8mm

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First, it should be noted that the displayed figure is a trapezium

<em>The area of a trapezium is calculated by multiplying the sum of parallel sides by half its height;</em>

In this case;

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68 = \frac{HG + 12}{2} * 8

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6 0
2 years ago
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dusya [7]

Answer:

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Step-by-step explanation:

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