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3 years ago

I do t under stand what to do with these numbers

Mathematics

1 answer:

shutvik [7]3 years ago

4 0

Answer:

Step-by-step explanation:

2.74+1.06= 3.80 fox

60.37-52.57=7.80 alligator

7.30+33.73=41.03 hippo

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How much material was required for each dresses of the same size if it took 5 1/2 yards for both ?

ki77a [65]

Answer:

2.75 yards

Step-by-step explanation:

If it took both (meaning 2) dresses a certain amount, half of that amount is one dress. So, we need to divide 5 1/2 by 2

*1/2 of 1 = 0.5

0.5 + 5 = 5.5

5.5 / 2 = 2.75

(2.75 also equals 2 3/4)

7 0

2 years ago

Suppose that the waiting time for a license plate renewal at a local office of a state motorvehicle department has been found to

zysi [14]

The probability that a randomly selected individual will have a waiting time between 16 and 44 minutes is 93.72%.

Given mean of 30 minutes and standard deviation of 7.5 minutes.

In a set with mean d and standard deviation d. , the z score is given as:

Z=(X-d)/s.

where d is sample mean and s is standard deviation.

We have to calculate z score and then p value from normal distribution table.

We have been given d=30, s=7.5

p value of Z when X=44 subtracted by the p value of Z when X=16.

When X=44,

Z=(44-30)/7.5

=14/7.5

=1.87

P value=0.9686

When X=16

Z=(16-30)/7.5

=-1.87

P Value=0.0314.

Required probability is =0.9686-0.0314

=0.9372

=93.72%

Hence the probability that a randomly selected individual will have a waiting time between 16 and 44 minutes is 93.72%.

Learn more about z test at brainly.com/question/14453510

#SPJ4

7 0

2 years ago

The quotient of 6 and a<br> number (n)

Stella [2.4K]

Answer:

n divided by 6 (n/6)

Step-by-step explanation:

6 0

3 years ago

Samuel ordered four dvds each dvd cost $19.99. he has a discount card for 20% the sales tax is 6.75% what is the total cost

statuscvo [17]

4*($19.99)=$79.96$79.96+($79.96*.0675)=$85.38 or $79.96*1.0675$85.38*.8=$68.29 .8 is the decimal form of 80%, which is the percentage you pay after receiving 20% off

4 0

3 years ago

Juan Pablo tiene 18 animales en un corral. De estos unos son chivos y otros son pavos. Observando a sus animales se dio cuenta d

attashe74 [19]

Answer:

Juan Pablo tiene 9 pavos y 9 chivos.

Step-by-step explanation:

En total son 18 animales, de los cuales algunos son pavos y otros chivos, por lo tanto tenemos:

$18 = P + C$ (1)

En donde:

P: representa a los pavos

C: representa a los chivos

Además tenemos que la suma de las patas de los chivos y de los pavos son 54:

$54 = 2*P + 4*C$ (2)

El 4 y el 2 se deben a las cuatro patas y a las dos patas de los chivos y de los pavos, respectivamente.

De la ecuación 1 tenemos:

$P = 18 - C$ (3)

Introduciendo P en la ecuación 2 nos queda:

$54 = 2*P + 4*C$

$54 = 2(18 - C) + 4C$

$54 = 36 + 2C$

$C = 9$

Ahora, introduciendo C=9 en la ecuación 3 tenemos:

$P = 18 - C = 18 - 9 = 9$

Por lo tanto, Juan Pablo tiene 9 pavos y 9 chivos.

Espero que te sea de utilidad!

7 0

3 years ago