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2 years ago

95% of 7-year-old children are between_inches and inches tall.

Mathematics

2 answers:

Advocard [28]2 years ago

8 0

Answer:

45 and 53 are the answer

Step-by-step explanation:

answered on edu

Lesechka [4]2 years ago

4 0

Answer: The answer is 46.5 inches to 49.5 inches.

Step-by-step explanation: We are to tell the height limits of a 7-year old child.

Various scientific experiment shows that the height of maximum 7-year old girl child lies between 46.5 inches and 49.4 inches and the height of maximum 7-year old boy child lies between 46.6 inches and 49.5 inches.

So, combining the height limits of girls and boys, we can say that the height limit of 95% 7-year old child lies between 46.5 inches and 49.5 inches.

Thus, the answer is 46.5 inches and 49.5 inches.

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I have 3 countries (Germany, usa, China) with 3 statistics (people per square km, internet users per 100 people, cell phone owne

kolbaska11 [484]

Alright, so if we wanted to take, for example, cell phone owners per 100 people and compare Germany to the USA, we can start by making up a number for Germany - 80 - and a number for the USA - 70. Next, the ratio of people using cell phones is 80/70=8/7 with the numerator being the people from Germany and the denominator being the number from the USA.

4 0

2 years ago

What two whole numbers is √29 between? 3 and 4 4 and 5 5 and 6 6 and 7

Nadya [2.5K]

Answer:

5 and 6

Step-by-step explanation:

Consider perfect square numbers either side of 29

25 < 29 < 36, thus

$\sqrt{25}$ < $\sqrt{29}$ < $\sqrt{36}$ , that is

5 < $\sqrt{29}$ < 6

5 0

2 years ago

Read 2 more answers

x+4y=17 and -x-6y=-23 what's the x and y I really badly need this I need this so I can play at my basketball game tommorw and I

loris [4]

Answer:

x = 5
y = 3

Solution:

=> x + 4y = 17

-x - 6y = -23

=> -2y = -6
=> y = 3

Now, let's substitute the value of y into the first equation.

x + 4y = 17
=> x + 4(3) = 17
=> x + 12 = 17
=> x = 5

Let's check our answer to make sure it is correct.

Check:

-x - 6y = -23
=> -(5) - 6(3) = -23
=> -5 - 18 = -23
=> -23 = -23

Hence, this is proven correct.

Hoped this helped.

$BrainiacUser1357$

7 0

1 year ago

5 . 3n A. 15,30,45,60 B.5,15,45,135 C.0,15,45,135 D.15,45,135,405

TiliK225 [7]

Answer:

Step-by-step explanation:

6 0

2 years ago

The perimeter of a semicircle is 5.14 feet. What is the semicircle’s area?

hammer [34]

$\bf \textit{circumference of a semi-circle}\\\\
C=\pi r\qquad 
\begin{cases}
r=radius\\
-----\\
C=5.14
\end{cases}\implies 5.14=\pi r\implies \boxed{\cfrac{5.14}{\pi }=r}\\\\
-------------------------------\\\\
\textit{area of a semi-circle}\\\\
A=\cfrac{\pi r^2}{2} \implies A=\cfrac{\pi }{2}r^2\implies A=\cfrac{\pi }{2}\left( \boxed{\cfrac{5.14}{\pi }} \right)^2
\\\\\\
A=\cfrac{\pi }{2}\implies \cfrac{5.14^2}{\pi ^2}\implies A=\cfrac{26.4196}{2\pi }\implies A=\cfrac{13.2098}{\pi }$

5 0

2 years ago

95% of 7-year-old children are between_________inches and________ inches tall.

95% of 7-year-old children are between_inches and inches tall.