The smartest person can only help with the method please help 3 1/4 divided by 2

Mathematics

1 answer:

nevsk [136]3 years ago

6 0

Answer:

13/8 = 1 5/8

Step-by-step explanation:

first make 3 1/4 into an improper fraction

3 1/4 = (3*4+1)/4 = 13/4

13/4 /2

we know that dividing by a number is multiplying by its reciprocal, so

(13/4)/2 = 13/4 * (1/2)

multiply the numerators together, and multiply the denominators together

13/4 * (1/2) = (13*1)/(4*2) = 13/8 = 1 5/8

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Ava‘s birthday party cost two dollars for every guess he invites how many guest can there be at most if Abe can afford to spend

daser333 [38]

Answer:

The answer is 18.

Step-by-step explanation:

If Ava's birthday party costs two dollars for every guest that is invited and the total amount that can be spent on the birthday is 36 dollars, only for the guests, then 36/2 = 18, a total of 18 guests can be invited to Ava's birthday.

I hope this answer helps.

3 0

3 years ago

I have no clue.. HELP

hram777 [196]

Imagine you covered the outer part of the wheel with paint. Then you rolled the wheel one complete revolution. The paint on the wheel would transfer to the flat ground making a straight line. The length of this straight line is exactly equal to the distance around the circle (aka circumference)

Let's find the circumference

C = 2*pi*r
C = 2*pi*14
C = 28pi

The distance around the circle is exactly 28pi inches.
If we use pi = 3.14, which is an approximation of pi, then that approximates to 28*pi = 28*3.14 = 87.92

So one revolution corresponds to traveling 87.92 inches approximately

We want to travel 440 inches. The question is: how many revolutions do we need to go in order to achieve this goal?

Let k = number of revolutions needed to travel 440 inches

1 revolution = 87.92 inches traveled
k revolutions = k*87.92 inches traveled

Set the expressions k*87.92 and 440 equal to each other and solve

k*87.92 = 440
k*87.92/87.92 = 440/87.92
k = 5.0045495 ... this is approximate

So it takes about 5 revolutions to travel 440 inches. We'll need a bit over 5 to make sure we get to 440.

Final Answer: Choice B) 5 rotations

3 0

3 years ago

Find linear models for each set of data. In what year will the two quantities be equal? x y 1970 67.8 1975 69.6 1980 70.5 1985

DaniilM [7]

Answer:

The graph solution is defined in the attachment file please find it.

Step-by-step explanation:

The first line equation:

$\to Y= 0.22x + 67.5\\\\$