What is 2.5% as a feaction and a decimal

Lori works as a cartoonist for a teen magazine.The time she spent sketching is given by the equation m=12s, where mis the number

Vera_Pavlovna [14]

Answer:

Lori spends <u>9 minutes</u> on sketching $\frac{3}{4}$ th of a sketch.

Step-by-step explanation:

Given equation:

$m=12\ s$

where $m\rightarrow$ number of minutes Lori spends on sketching

and $s\rightarrow$ number of sketches Lori makes.

We need to calculate the time spent by Lori in sketching $\frac{3}{4}$ of a sketch.

So we know the value of $s=\frac{3}{4}$ as $s$ represents number of sketches and in this situation Lori has sketched only a fraction of a painting.

So we plugin $s=\frac{3}{4}$ in the equation and calculate $m$ which is time spent by Lori sketching $\frac{3}{4}$ th of a sketch.

$m=12\ \frac{3}{4}$

$m=\frac{36}{4}$

∴ $m=9$ minutes (Answer)

∴ Lori spends 9 minutes on sketching $\frac{3}{4}$ th of a sketch.

5 0

3 years ago

What are the roots of y=x^2+3x-10

USPshnik [31]

The answer is x = 2, -5

5 0

3 years ago

Read 2 more answers

652,951 rounded to the nearest thousand? Please hurry fast!!!!

Annette [7]

653,000.
Place
Hundred thousand
Ten thousand
Thousand
Hundred
Tens
Ones
From right to left.
5 and above round up else ignore.
Put zeros everywhere you rounded.
Mark as the best!

8 0

2 years ago

When testing a hypothesis about a single mean, a sample size of 200 is selected from a normally distributed population. If the p

Evgen [1.6K]

Answer:

Null hypothesis: $\mu \leq \mu_o$

Alternative hypothesis: $\mu > \mu_o$

If we analyze the size for the sample is > 30 and we know the population deviation so is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

Step-by-step explanation:

Data given and notation

$\bar X$ represent the sample mean

$\sigma$ represent the population standard deviation for the sample

$n=200$ sample size

$\mu_o$ represent the value that we want to test

$\alpha$ represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the mean is equal to $\mu_o$ , the system of hypothesis would be:

Null hypothesis: $\mu \leq \mu_o$

Alternative hypothesis: $\mu > \mu_o$

If we analyze the size for the sample is > 30 and we know the population deviation so is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

5 0

4 years ago

Guys please do the question at the bottom thanks.

vagabundo [1.1K]

7^2 - 3(4-2)^0 - 2(7+3) + 3^2
= 49 - 3 - 20 + 9
= 35

hope it helps

P.S

any number to the 0 power is always equal 1

6 0

3 years ago

What is 2.5% as a feaction and a decimal​

What is 2.5% as a feaction and a decimal