350 is what percentage of 50?

Hello can someone please help me with this please

emmainna [20.7K]

The interest is $175

The formula we'll use for this is the simple interest formula, or: I=P*R*t

Where:

P is the principal amount, $5000.00.
r is the interest rate, 7% per year, or in decimal form, 7/100=0.07.
t is the time involved, 6....month(s) time periods.
Since your interest rate is "per year" and you gave your time interval in "month(s)" we need to convert your time interval into"year" as well.
Do this by dividing your time, 6- month(s), by 12, since there's 12 months in 1 year. So, t is 0.5....year time periods.

To find the simple interest, we multiply 5000 × 0.07 × 0.5 to get that: $175

7 0

3 years ago

A dilation is a transformation whose preimage and image are

Sergeeva-Olga [200]

A different size but not does not change shape.

3 0

4 years ago

Identify the number as real, complex, pure imaginary. radical -9

Lemur [1.5K]

Answer:

Pure imaginary

Step-by-step explanation:

$\sqrt{ - 9} = \sqrt{ - 1 \times 9} = 3i \\ is \: a \: pure\: imaginary \: number.$

8 0

3 years ago

Is the ordered pair (-3, 16) a solution for y=-3x + 7?

8_murik_8 [283]

Answer: Yes

Step-by-step explanation:

(-3, 16) split into place would give you 16= -3-3 + 7. A negative times a negative is always a positive number so, -3 x -3 = 9, 9+7=16

4 0

3 years ago

52. In exploring possible sites for a convenience store in a large neighborhood, the retail chain wants to know the proportion o

kvasek [131]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.1}{1.96})^2}=96.04$

Then the minimum sample size in order to satisfy the condition of 0.1 for the margin of error is 97 and since the sample used is n =100 we can conclude that is sufficient and the best answer would be:

D. Yes.

Step-by-step explanation:

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. We know that we require a 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by:

$z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96$

The margin of error for the proportion interval is given by this:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

We want a margin of error of $ME =\pm 0.1$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

Since we don't have prior info for the population proportion we can use as estimator the value of 0.5. And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.1}{1.96})^2}=96.04$

Then the minimum sample size in order to satisfy the condition of 0.1 for the margin of error is 97 and since the sample used is n =100 we can conclude that is sufficient and the best answer would be:

D. Yes.

4 0

3 years ago