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3 years ago

Determine whether y varies directly with x. If so, find the constant of variation k. 7y = –x

Mathematics

2 answers:

saul85 [17]3 years ago

8 0

Answer: B

Explanation: comment above me LOL

fomenos3 years ago

3 0

Answer:

Step-by-step explanation:

The equation of quantities in direct variation is

y = kx ← k is the constant of variation

Given

7y = - x ( divide both sides by 7 )

y = - $\frac{1}{7}$ x ← in direct variation form

with k = - $\frac{1}{7}$

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Answer:

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Step-by-step explanation:

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3 years ago

Question 7 ❤️ this is almost due and I need some help with question 7! Thanks

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4 years ago

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3 years ago

Maria works as a florist and worked 15 hours last week and earned $112.50. At that rate, how much will she earn if she works for

Montano1993 [528]

Answer:

Rearranging the options we have;

a. $73

b. $75

c. $55

d. $78

From which the correct option is;

b. $ 75.

Step-by-step explanation:

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Number of hours worked last week by Maria = 15 Hours

Amount earned by Maria for work last week = $ 112.50

Therefore by finding the hourly rate, that is how much Maria is being paid per hour, we get

15 Hours = $ 112.50

Therefore dividing both sides of the equation by 15 we get

15 Hours/15 = $ 112.50/15 which gives

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3 years ago

If your starting salary is $40,000 and you receive a 3% increase at the end of every year, what is the total amount, in dollars,

sasho [114]

Answer:

SEE BELOW PLEASE GIVE BRAINLIEST

Step-by-step explanation:

YEAR 1: 40000 X .03 = 1200 40,000 + 1200 = 41200

YEAR 2: 41,200 X .03 = 1236 41,200 + 1236 = 42436

YEAR 3: 42436 X .03 = 1273.08 42436 + 1273.08 = 43709.08

YEAR 4: 43709.08 x .03 = 1311.27 43709.08 + 1311.27 = 45020.35

YEAR 5: 45020.35 X .03 = 1350.61 45020.35 + 1350.61 = 46370.96

YEAR 6: 46370.96 X .03 = 1391.13 46370.96 + 1391.13 = 47762.09

YEAR 7: 47762.09 X .03 = 1432.86 47762.09 + 1432.86 = 49194.95

YEAR 8: 49194.95 X .03 = 1475.85 49194.95 + 1475.85 = 50670.80

YEAR 9: 50670.80 X .03 = 1520.12 50670.80 + 1520.12 = 52190.92

YEAR 10: 52190.92 X .03 = 1565.73 52190.92 + 1565.73 = 53756.65

YEAR 11: 53756.65 X .03 = 1612.70 53756.65 + 1612.70 = 55369.35

YEAR 12: 55369.35 X .03 = 1661.08 55369.35 + 1661.08 = 57030.43

YEAR 13: 57030.43 X .03 = 1710.91 57030.43 + 1710.91 = 58741.34

YEAR 14: 58741.34 X .03 = 1762.24 58741.34 + 1762.24 = 60503.58

YEAR 15: 60503.58 X .03 = 1815.11 60503.58 + 1815.11 = 62318.69

YEAR 16: 62318.69 X .03 = 1869.56 62318.69 + 1869.56 = $64,188.25 = $64188

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3 years ago

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