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4 years ago

What number is 50% of 2

Mathematics

2 answers:

AlladinOne [14]4 years ago

8 0

It's 1. 50% means multiple by 1/2 or .5 (or you could divide by 2). So 2 x .5 is just 1.

Masteriza [31]4 years ago

8 0

The answer would be 1 just divide it in half

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One-third times the difference of a number and 5 is -2/3

fomenos

The answer is 3. 1/3(x-5)= -2/3. Multiply by 3 on both sides. Add five and you get 3

3 0

4 years ago

Make y the subject of the formula

Murljashka [212]

Answer:

meaning?

Step-by-step explanation:

where is the complete question

7 0

2 years ago

Rt - 2n = y solve for t

Nesterboy [21]

Answer:

$t=\frac{y+2n}{r}$

General Formulas and Concepts:

Pre-Alg

Equality Properties

Step-by-step explanation:

Step 1: Define equation

rt - 2n = y

Step 2: Solve for t

Add 2n to both sides: rt = y + 2n
Divide both sides by r: t = (y + 2n)/r

8 0

4 years ago

One variable examined is the survival rate 10 years after tagging. The scientists observed that 10 of the 50 metal tagged pengui

Oksana_A [137]

Answer: 90% confidence interval would be $(-0.2483,-0.0717)$

Step-by-step explanation:

Since we have given that

n₁ = 50

Number of metal tagged penguins survived = 10

So, $p_m=\dfrac{10}{50}=0.2$

n₂ = 50

Number of electronic tagged penguins = 18

So, $p_e=\dfrac{18}{50}=0.36$

So, at 90% confidence interval, z = 1.28

So, interval would be

$(p_m-p_e)\pm z\sqrt{\dfrac{p_m(1-p_m)}{n}+\dfrac{p_e(1-p_e)}{n}}\\\\=(0.2-0.36)\pm 1.28\sqrt{\dfrac{0.2\times 0.8}{50}+\dfrac{0.36\times 0.64}{50}}\\\\=-0.16\pm 0.0883\\\\=(-0.16-0.0883,-0.16+0.0883)\\\\=(-0.2483,-0.0717)$

Hence, 90% confidence interval would be

$(-0.2483,-0.0717)$

6 0

3 years ago

A school plays a series of 6 soccer matches. For each match there are 3 possibilities: a win, a draw or a loss. How

Sphinxa [80]

Answer:

There are 729 possible results are there for the series

Step-by-step explanation:

If we have n trials, each with m possible outcomes, the total number of possible outcomes is:

$T = m^{n}$

In this question:

6 games(trials), so $n = 6$ .

Each with three possible outcomes, so $m = 3$

Then:

$T = 3^{6} = 729$

There are 729 possible results are there for the series

7 0

3 years ago