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2 years ago

14

A school board has determined that there should be 3 teachers for every 50 students. How many teachers are needed for an enrollm

ent of 2,650 students?

2 answers:

dalvyx [7]2 years ago

8 0

Just check out the doc I attached. Solves step by step. I have had this question before.

Akimi4 [234]2 years ago

3 0

The answer is 159 because 2650*3/50=159

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En una fábrica de automóviles que trabaja las 24 horas se arman diariamente 24

saul85 [17]

Answer:

a. La ganancia es de $ 4,060,000.00

b. 31 vehículos

Step-by-step explanation:

(a) Los parámetros dados son;

El número de automóviles tipo sedán fabricados = 24

El número de camiones tipo SUV fabricados = 16

El número de camiones tipo VAN fabricados = 12

El número de camionetas pick-up fabricadas = 8

El número de autos deportivos fabricados = 2

La ganancia por la venta de autos tipo sedán = $ 185,000 - $ 140,000 = $ 40,000

La ganancia por la venta de camionetas tipo SUV = $ 320,000 - $ 250,000 = $ 70,000

La ganancia por la venta de camiones tipo VAN = $ 400,000 - $ 310,000 = $ 90,000

La ganancia por la venta de las camionetas pick-up = $ 285,000 - $ 210,000 = $ 75,000

La ganancia por la venta de los autos deportivos = $ 550,000 - $ 400,000 = $ 150,000

La ganancia = 24 * $ 40 000 + 16 * $ 70 000 + 12 * $ 90 000 + 8 * $ 75 000 + 2 * $ 150 000 = $ 4060 000

(b) Por lo que hay una tasa de producción constante, solo la mitad de los automóviles se producirán dentro del período de 12 horas

Por lo tanto, tu fabricado

12 autos sedán, 8 camionetas tipo SUV, 6 camionetas tipo VAN, 4 camionetas pick-up y 1 auto deportivo para hacer un total de 31 vehículos.

6 0

2 years ago

A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12

marissa [1.9K]

Answer:

Step-by-step explanation:

Hello!

You have two random samples obtained from two different normal populations.

Sample 1

n₁= 15

X[bar]₁= 350

S₁= 12

Sample 2

n₂= 17

X[bar]₂= 342

S₂= 15

At α: 0.05 you need to obtain the p-value for testing variances for a one tailed test.

If the statistic hypotheses are:

H₀: σ₁² ≥ σ₂²

H₁: σ₁² < σ₂²

The statistic to test the variances ratio is the Stenecor's-F test. $F_{H_0}=(\frac{S^2_1}{Sigma^2_1}) * (\frac{S^2_2}{Sigma^2_2} )$ ~ $F_{n_1-1;n_2-1}$

$F_{H_0}= \frac{(12)^2}{(15)^2} * 1= 0.64$

The p-value is:

P( $F_{14;16}$ ≤0.64)= 0.02

I hope it helps!

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2 years ago

Plsssss help !!!!!! At certain traffic light 10% of the cars passed through have four wheel drive what percentage do not have fo

VMariaS [17]

Answer:

90%

Step-by-step explanation:

If you are going to find out the percent of the car that do not have 4 wheel drive, you take the total amount of car that passed though the stoplight which is 100% . You take this 100% and then subtract the 10% to get the final answer 90%. 90% of the cars do not have 4 wheel drive.

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1 year ago

you have housing and fixed expenses of $631.72/month and they are 33% of your realized income. What is our realized income per m

nikklg [1K]

631.72 = 33% of Realized Income
<span>631.72 / .33 = Realized Income </span>
<span>1914.30 = Realized Income</span>

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2 years ago

Read 2 more answers

A plot of land is about 13,000 ft by 8000 ft. Approximately how many square miles is this? Round to the nearest whole number.

Ivan

5280ft = 1mile

13,000ft = 2.46miles 8,000ft = 1.52 miles

2.46 x 1.52 = 3.7 miles^2

4 0

1 year ago

Read 2 more answers