Mathematics, 29.01.2020 07:47 Naviascales7018

Acd makes 581/2 revolutions in 2/4 min.
complete the unit rate.

Answers: 2

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Answers

In 2/4 minutes the number of revolutions a CD makes = 58 ½ = 117/2
Then
In 1 minute the number of revolutions the CD will make = [(117/2)/(2/4) ] * 1 = (117 * 4)/(2 * 2) = 117
So it can seen that the CD revolves at the rate of 117 revolutions per minute. I hope this is the answer you were looking for. The procedure for solving this problem is easy for you to understand i hope.

Answer from: shanilafaridor97hl

A CD makes 58 1/2 revolutions in 1/2 minutes.

A CD makes 58.5 revolutions in 0.5 minutes.

Multiply both numbers by 2.

A CD makes 117 revolution in 1 minute.

Answer from: Quest

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = $\frac{-8+3}{4-7}$ = - $\frac{5}{3}$

y = - $\frac{5}{3}$ x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - $\frac{20}{3}$ + c ⇒ c = - $\frac{4}{3}$

y = - $\frac{5}{3}$ x - $\frac{4}{3}$ ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

Answer from: Quest

nope lol

step-by-step explanation:

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Acd makes 581/2 revolutions in 2/4 min.
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