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Marta_Voda [28]
3 years ago
6

It took jayla 40 seconds to rip half a DVD. what is jaylas ripping rate in DVDs per minute?

Mathematics
1 answer:
max2010maxim [7]3 years ago
6 0
min-minute;\ s-second\\\\1min=60s\\\\\begin{array}{ccc}40s&-&0.5\ DVD\\60s&-&x\ DVD\end{array}\ \ |cross\ multiply\\\\\\40\cdot x=60\cdot0.5\\40x=30\ \ \ \ |divide\ both\ sides\ by\ 40\\x=\frac{30}{40}\\\\x=\frac{3}{4}\ (DVD)\\\\\frac{3}{4}=0.75\\\\Answer:\boxed{0.75DVD\ per\ 1\ min}
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Sam wants to write an equation to represent a proportional relationship with a constant of proportionality of 6 he write y = 6 +
Olin [163]

Answer:

y = 6x

Step-by-step explanation:

The equation representing a proportional relationship is

y = kx ← k is the constant pf proportionality

Here k = 6 , then

y = 6x ← equation of proportion

7 0
3 years ago
Keaton's dinner bill at a local restaurant before tax and tip was $25.85 if he wants to leave 15% of the bill for tip and there'
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Tips = 15% x $25.85 = $3.88

Tax = 6.25% x $25.85 = $1.62

Total amount = $25.85 + $3.88 + $1.62 = $31.35

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Answer: He will spend $31.35 in total.
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8 0
3 years ago
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crimeas [40]

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Step-by-step explanation:

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3 years ago
A line segment that has one endpoint at the center of a circle and the other endpoint on the circle?
Umnica [9.8K]
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4 0
3 years ago
Read 2 more answers
The equation(function):10.00+.75x
valentinak56 [21]

Answer:

Answer:

b. -75x+57=-75x+57

Step-by-step explanation:

If an equation after solving does not give the solution but give a true statement then the equation has infinitely many solution,

In option a.

57x+57=-75x-75

57x + 75x = -75 - 57

132x = -132

⇒ x = -1

i.e. it has only one solution,

In option b.

-75x+57=-75x+57

-75x + 75x = 57 - 57

0 = 0  ( True )

i.e. it has infinitely many solution.

In option c.

75x+57=-75x+57

75x + 75x = 57 - 57

150x = 0

⇒ x = 0

i.e. it has only one solution,

In option d.

-57x+57=-75x+75

-57x + 75x = 75 - 57

18x = 18

⇒ x = 1

i.e. it has only one solution.

Step-by-step explanation:

6 0
3 years ago
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