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Vadim26 [7]
4 years ago
5

The average age of three children in the Smith family is 11. If the first two children are 14 and 12, how old is the youngest ch

ild?
Mathematics
1 answer:
zaharov [31]4 years ago
7 0

Answer: 7

Step-by-step explanation:

If the average is 11

the number has to add up to 33 which is divisible by 3 and give you the average 11

14+12= 26

14+12=26/2=13

13- 6= 7

14+ 12 + 7= 33/3= 11

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x + 6 < 10

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Write a phrase for each algebraic expression using a word
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A) cubed (you’re multiplying a number by itself, then by itself again )
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Express the number 6 as a binary number<br>​
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3 years ago
Kyleigh put a large rectangular sticker on her notebook.the height of the sticker measures 10 cm. the base is half as long as th
mixer [17]

Hey there! Welcome to Brainly! I'm happy to help you!

When we are talking about the height and base, let's use the variables h and b. With the information we have been given, we can make the following equations below.

h=10                     (the height is 10)

b=h/2            (base is half as long as the height)

We see that h is equal to ten. b is equal to h divided by two, so it is therefore ten divided by 2! We take the value for h and the plug it into the second equation!

b=10/2

b=5

So, we now know that the height is 10 cm and that the base is 5 cm. However, we need to find the area. To find the area of a rectangle, we just multiply the base by the height!

10(5)=50

Therefore, the area of the sticker is 50 cm².

I hope that this helps! Have a wonderful day!

7 0
3 years ago
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your answer would be -239.45.

356.54

-595.99

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-239.45

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