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3 years ago

I need help with All of those and im Done for tonight if you no only one just do it anyways and tell me

Mathematics

2 answers:

LuckyWell [14K]3 years ago

6 0

3) No because 7 is not a multiple of 17.
4) $15/6 = 2.5
So 1 ticket is $2.5
$2.5 x 9 = $22.5

5) 22 x 5 = 110 miles

6a) 1:10

6b) 3:25

Andreyy893 years ago

3 0

#3)NO
#4)9 x 15 divided by 6
answer=$22.5
#5)25 x 5 divided by 1
answer=125miles
#6)2:20=1:10

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3 years ago

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Sit tight, this is gonna be long!! =P

Also, for this answer, I'm assuming that the 'expressway' mentioned in your question is the top horizontal line. (In fact, that must be the expressway, since there would be no other way to solve the problem)

Okay, let's get started.
For starters, GY = 16 ft. That much is given to us in the question. GY's equivalent is BX, which is 10 ft. When the angles are mirrored like they are across the 'expressway' in this problem, they do not change, so we only need to put the dimensions to scale. If we divide 10 / 16, we see that the scale-down factor is .625, or 62.5%. With this information, we can find the length of XW.

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Well, let me tell you.

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The numerator and denominator of a fraction are in the ratio of 3 to 5. If the numerator and denominator are both increased by 2

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Question:

The numerator and denominator of a fraction are in the ratio of 3 to 5. If the numerator and denominator are both decreased by 2, the fraction is now equal to $\frac{1}{2}$ .

If n = the numerator and d = the denominator, which of the following systems of equations could be used to solve the problem?

5n = 3d and n - 2 = 2d - 4

5n = 3d and 2n - 4 = d - 2

3n = 5d and 2n - 4 = d - 2

Answer:

5n = 3d and 2n – 4 = d – 2

Solution:

Let n be the numerator of the fraction and d be the denominator of the fraction.

Given the numerator and denominator of a fraction are in the ratio of 3 to 5.

This can be written as n : d = 3 : 5.

⇒ $\frac{n}{d}= \frac{3}{5}$ – – – – (1)

Do cross multiplication, we get

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⇒ $\frac{n-2}{d-2}= \frac{1}{2}$

Do cross multiplication, we get

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