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3 years ago

On a map of the city, 1 centimeter represents 2.5 miles. What distance on the map would represent 20 miles?

Mathematics

1 answer:

Oxana [17]3 years ago

8 0

1 cm = 2.5 Miles
2 cm = 5 Miles and so on

20/2.5= 8 cm

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Suppose the profit a honda dealership makes on the next 5 accords it sells are:564, 1,000, 848, 1,495, 1,348. calculate the stan

stepladder [879]

First we have to find the mean (average)
mean = (564 + 1000 + 848 + 1495 + 1348) / 5 = 5255 / 5 = 1051

now we subtract the mean from every data point, then square it
564 - 1051 = -487......-487^2 = 237169
1000 - 1051 = -51......-51^2 = 2601
848 - 1051 = -203......-203^2 = 41209
1495 - 1051 = 444......444^2 = 197136
1348 - 1051 = 297......297^2 = 88209

now find the mean of the results.....but know when ur dealing with a sample instead of the whole population, u divide by 1 number less...so instead of dividing by 5, u divide by 4.
(237169 + 2601 + 41209 + 197136 + 88209) / 4 = 566324 / 4 =
141581.....this is called ur variance

now take the square root of the variance and u have ur standard deviation
sqrt (141581) = 376.272 rounds to 376.27 <==

5 0

4 years ago

a class survey showed 8 out of 25 students had plans to travel over spring break. how many students out of the 400 students in t

tangare [24]

Traveling : total
8 : 25
x : 400

25 x 4 = 400 so 8 x 4 = 40 so the answer is 40.

5 0

3 years ago

Resuma o tema operações com números positivos e negativos POR FAVOR RESPONDA CERTO E RÁPIDO É URGENTE!

wlad13 [49]

Adição (+)

Positivo + Positivo = Positivo

Negativo + Negativo = Negativo

Positivo + Negativo ou Negativo + Positivo

• use o maior número e seu sinal, subtraia

Subtração (-)

Negativo - Positivo = Negativo

Positivo - Negativo = Positivo

Negativo - Negativo = Negativo + Positivo

• use o maior número e seu sinal, subtraia

Multiplicação (x)

Positivo x Positivo = Positivo

Negativo x Negativo = Positivo

Negativo x Positivo = Negativo

Positivo x Negativo = Negativo

• alterar os negativos duplos para um positivo

Divisão (÷)

Positivo ÷ Positivo = Positivo

Negativo ÷ Negativo = Positivo

Negativo ÷ Positivo = Negativo

Positivo ÷ Negativo = Negativo

• alterar os negativos duplos para um positivo

3 0

3 years ago

a rectangular laboratory has a length equal to one and a half times its width and a perimeter of 40m. find its length and width

tresset_1 [31]

L=1.5w
P=l+w
40=2.5 w
W=16
L=1.5(16) =24

Length is 24
Width is 16

8 0

2 years ago

Read 2 more answers

A bank charges 1.75 of a point for the origination fee on a mortgage of $400,000. What is the origination fee?

Marina86 [1]

Answer:

The origination fee on a mortgage of $400,000 is $7,000.

Step-by-step explanation:

Here, the mortgage value = $400,000

The origination fee = 1.75%

Now, the origination fee is calculated on the amount mortgaged.

⇒ 1.75 % of ($400,00) = Origination Fee

Now, 1.75 % of ($400,00) = $\frac{1.75}{100} \times 400,000 = 7,000$

or, 1.75 % of ($400,00) = $ 7,000

Hence, the origination fee on a mortgage of $400,000 is $7,000.

4 0

4 years ago