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3 years ago

13

What percentage is $7,360 of $78,000

2 answers:

Svet_ta [14]3 years ago

7 0

I'd say 7.360 / 78.000 * 100 = 9,4359 %

Anton [14]3 years ago

4 0

divide 7360 by 78000

7360/78000 = 0.943589

= 9.44%

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Water flows at 12 m/s in a horizontal pipe with a pressure of 3.0 104 n/m2. if the pipe widens to twice its original radius, wh

Alexxx [7]

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3 years ago

Triangle J is shown below. James drew a scaled version of Triangle J using a scale factor of 4 and labeled it

Novay_Z [31]

Answer:

The area of triangle K is 16 times greater than the area of triangle J

Step-by-step explanation:

we know that

If Triangle K is a scaled version of Triangle J

then

Triangle K and Triangle J are similar

If two triangles are similar, then the ratio of its areas is equal to the scale factor squared

Let

z -----> the scale factor

Ak ------> the area of triangle K

Aj -----> the area of triangle J

so

$z^{2}=\frac{Ak}{Aj}$

we have

$z=4$

substitute

$4^{2}=\frac{Ak}{Aj}$

$16=\frac{Ak}{Aj}$

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therefore

The area of triangle K is 16 times greater than the area of triangle J

4 0

2 years ago

Read 2 more answers

Divide. Write your answer as a fraction in simplest form.<br><br> 9/10÷(−6/5)=

bulgar [2K]

Answer:

$-\frac{3}{4}$

Step-by-step explanation:

1. $\frac{9}{10}$ × $-\frac{5}{6}$

2. $-\frac{3}{4}$

3 0

3 years ago

In a survey, of the voters support a particular referendum. If 40 voters are chosen at random, find the mean and variance for th

Katyanochek1 [597]

This question is incomplete, the complete question is;

In a survey, 55% of the voters support a particular referendum. If 40 voters are chosen at random,

find the mean and variance for the number of voters who support the referendum.

Answer:

a) The Mean is 22

b) Variance is 9.9

Step-by-step explanation:

Given that;

55% of the voters support a particular referendum p = 0.55

q = 1 - p = 1 - 0.55 = 0.45

sample size n = 40

a)

Mean = sample size n × p

Mean = 40 × 0.55

Mean = 22

Therefore the Mean is 22

b)

Variance = n × p × q

so we substitute

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Variance = 9.9

Therefore the Variance is 9.9

3 0

2 years ago

(m-3)/(7)=(m)/(m+8) Solve the proportion.

ExtremeBDS [4]

Answer: m=6, m=-4

Step-by-step explanation:

To solve this proportion, we have to cross multiply.

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Now that we have cross multiplied, we actually need to FOIL the left side to expand the equation.

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Combine like terms.

$m^2+5m-24=7m$

We can move all terms to one side and then solve for m.

$m^2-2m-24=0$

We can actually factor this to:

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m-6=0

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6 0

3 years ago