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3 years ago

210 is what percent of 500?

2 answers:

8 0

The answer is 42

Explanation:

Step 1: We make the assumption that 500 is 100% since it is our output value.

Step 2: We next represent the value we seek with X.

Step 3: From step 1, it follows that 100%= 500.

Step 4: In the same vein, X%= 210.

Step 5: This gives us a pair of simple equations:

100%= 500(1)
X%=210(2)

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

100%/X%= 500/210

Step 7: Taking the inverse (or reciprocal) of sides yields
X%/100= 210/500
X= 42%

mash [69]3 years ago

3 0

Answer:

hope this answer helps you!

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A machine fills 64-ounce jugs with detergent. Assume the distribution of the amount of detergent in these jugs is Normal. Under

zhuklara [117]

Answer:

The proportion of jugs which receive more than 65 ounces of detergent is 0.0062 or 0.62%

Step-by-step explanation:

Mean amount of detergent = u = 64

Standard deviation = $\sigma$ = 0.4

We need to find the proportion of jugs with over 65 ounces of detergent. Since the population is Normally Distributed and we have the value of population standard deviation, we will use the concept of z-score to solve this problem.

First we will convert 65 to its equivalent z-score, then using the z-table we will desired proportion. The formula to calculate the z-score is:

$z=\frac{x-\mu}{\sigma}$

x = 65 converted to z score will be:

$z=\frac{65-64}{0.4}=2.5$

Therefore, the probability of detergent being more than 65 ounces is equivalent to probability of z-score being over 2.5

i.e.

P(X > 65) = P(z > 2.5)

From the z-table and using the property of symmetry:

P(z > 2.5) = 1 - P(z < 2.5)

= 1 - 0.9938

= 0.0062

Therefore,

P(X > 65) = P(z > 2.5) = 0.0062

So, the proportion of jugs which receive more than 65 ounces of detergent is 0.0062 or 0.62%

6 0

3 years ago

Use graphing technology to find the range of the function f(x)=-x^2+4.f(x)=−x <br> 2<br> +4.

Andre45 [30]

Answer:

The set of Real numbers

Step-by-step explanation:

x² + 4 is a parabola with the lowest point on the y-axis is 4 and continues up

-x² + 4 is a parabola with the highest point on the y-axis is 4 and continues down.

The range is the distance traveled on the y- axis.

All real numbers.

5 0

2 years ago

1.) Use the formula SA=6s², where SA is the surface area and s is the edge length of the cube, to solve this problem. The cube h

Digiron [165]

1)
To find the Surface Area of a cube you do

SA = 6 x $a^{2}$ Where [tex a^{2} [/tex] is the side you know.

For this problem you take SA = 6 x $4^{2}$

SA = 6 x 4 x 4

SA = 6 x 16

SA = 96
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2)
I cannot help you on this, I have never been good with doing trapezoids.
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3)
Volume = $s^{3}$

Volume = 2 $\frac{1}{2}$ ^ 3

Volume = 15 $\frac{5}{8}$

4 0

3 years ago

Im struggling and need help fast please show work and tell me how to do it. no links

kow [346]

Answer:

-3.8=n

Step-by-step explanation:

My goal is to get n all by itself, but its multiplied by 6. If I do the inverse operation (which is division) on both sides I will get -22.8/6=n. Now I can just simply combine the like terms and finalize my answer. 6 * 3=18 but -22.8 is a decimal number so my answer will range from around 3.5-3.9. if I divide -22.8/6 I get -3.8. My final answer is n=-3.8

5 0

3 years ago

8. Shenea bought 3 bottles of juice for $12. Write the rate as a

slamgirl [31]

Answer:

Each bottle is $4

Step-by-step explanation:

12/3

8 0

3 years ago