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Marta_Voda [28]
4 years ago
15

Tom weekly salary increased from $240 to $288 what was the percent of change

Mathematics
1 answer:
Greeley [361]4 years ago
7 0
288 - 240 = 48

48/240 *100 = 20%

answer: i<span>ncreased 20%</span>
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please help: What is the equation of a line parallel to -5x + y= 2 that passes through the point with coordinates (-2, 1)?
weqwewe [10]

Answer:

  • y = 5x + 11 or -5x + y = 11

Step-by-step explanation:

<u>Given line:</u>

  • -5x + y = 2

<u>In slope-intercept form:</u>

  • y = 5x + 2

<u>The parallel line has the same slope and will look as:</u>

  • y = 5x + b

<u>This line passes through the point (-2, 1), substitute:</u>

  • 1 = 5*(-2) + b
  • b = 1 + 10
  • b = 11

<u>So the line is:</u>

  • y = 5x + 11

or

  • -5x + y = 11
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3 years ago
Samantha’s parents give her $10 per week. For each chore that she does not complete, she must repay her parents $1. Which graph
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The y-intercept (initial value) is 10 and it has a slope of -1, so this is the first graph.
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3 years ago
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Which expression is equivalent to 1/4(20z+24)?
hram777 [196]

Answer:

<h2>-5z-6</h2>

Step-by-step explanation:

-1/4 x 20z = -5z

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So we have -5z-6. So the expression equivalent to 1/4(20z+24) is -5z-6.

3 0
3 years ago
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The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT dt equals negative k times the quantity T min
Maslowich

Answer:

67.3°C

Step-by-step explanation:

A = 25, T(0) = 100, T(1) = 90, find T(4)

dT/dt = -k(T - A)

d(T - A)/dt = -k(T - A)

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T(t) -A=Ce^{-kt}\\T(t) = A + Ce^{-kt} = 25 + Ce^{-kt}\\T(0) = 25 + C = 100\\C=75

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4 0
3 years ago
The force of gravity, F, exerted between two objects is equal to the product of the gravitational constant, G, the mass of the f
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The force of gravity is when the distance between two objects is d is:

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