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3 years ago

What's the mean median and range of 7, 1, 1, 7, 1, 4, 1??

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

6 0

Answer:

Mean is 3, median is 1, and range is 6

Step-by-step explanation:

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Solve for x. 4x + 5 = 20<br> a X = 5/4<br> b X = 15/4<br> c X = 3.5<br> d X = 15/3

Nonamiya [84]

Step-by-step explanation:

4x+5= 20
4x=20-5
4x= 15
x= 15/4

therefore the answer is option

b) X= 15/4

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4 0

3 years ago

2. Are these ratios equal? 6:10 and 5:20

Step2247 [10]

Answer:

Step-by-step explanation:

Think of it like this. 6/10 is 60% and 5/20 is 25%. These two values aren't the same.

3 0

3 years ago

Read 2 more answers

Write an expressions for one half of 10

Korolek [52]

10/2=5
hope this helps

3 0

3 years ago

Please help with 11c!?

Contact [7]

Answer:

"To the nearest year, it would be about 9 years"

Step-by-step explanation:

11c)

This is compound growth problem. It goes by the formula:

$F=P(1+r)^t$

Where

F is the future amount

P is the present (initial) amount

r is the rate of growth, in decimal

t is the time in years

Given,

P = 20,000

r = 8% = 8/100 = 0.08

F = double of initial amount = 2 * 20,000 = 40,000

We need to find t:

$F=P(1+r)^t\\40,000=20,000(1+0.08)^t\\2=(1.08)^t$

To solve exponentials, we can take Natural Log (Ln) of both sides:

$2=(1.08)^t\\Ln(2)=Ln((1.08)^t)$

Using the rule shown below we can simplify and solve:

$Ln(a^b)=bLn(a)$

We can write:

$Ln(2)=Ln((1.08)^t)\\Ln(2)=tLn(1.08)\\t=\frac{Ln(2)}{Ln(1.08)}\\t=9.0064$

To the nearest year, that would be about 9 years

5 0

3 years ago

At an important meet, Allyson won the women's 100 meters in 12.24 seconds. Find her average rate.

otez555 [7]

The rate is 8.17 meters per second

Further explanation:

In order to find the rate we have to divide the distance covered by the woman by the time she covered it in.

Given

$Distance=d=100\ meters\\Time=t=12.24\ sec\\So,\\Rate=\frac{d}{t}\\=\frac{100}{12.24}\\=8.17\ ms^{-1}$

The rate is 8.17 meters per second

Keywords: Speed, distance

Learn more about speed at:

#LearnwithBrainly

6 0

3 years ago