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Bingel [31]
2 years ago
6

If y varies directly with x. and y=10 when x=5.6, find the value of y when X=3

Mathematics
1 answer:
Nady [450]2 years ago
3 0

Answer: 5.3571

Step-by-step explanation:

The formula used to calculate direct proportion is: y = kx

We will find the constant of proportionality when y=10 and x=5.6. This will be:

y = kx

10 = 5.6k

k = 10/5.6

k = 1.7857143

The value of y when X=3 will be:

y = kx

y = 1.7857143 × 3

y = 5.3571

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A truck can be rented from Company A for $90 a day plus a $0.20 per mile .Company B charges $20 a day plus $0.70 per mile to ren
Alex787 [66]

The number of miles in a day at which the rental costs for Company A and Company B are the same is 140 miles

<h3>Rental cost</h3>

Let

  • Number of miles = x

Company A:

90 + 0.20x

Company B:

20 + 0.70x

  • Equate both rental cost

90 + 0.20x = 20 + 0.70x

90 - 20 = 0.70x - 0.20x

70 = 0.50x

  • Divide both sides by 0.50

x = 70/0.50

x = 140 miles

Therefore, the number of miles in a day at which the rental costs for Company A and Company B are the same is 140 miles

Learn more about rental cost:

brainly.com/question/11959610

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8 0
1 year ago
Express in terms i root of -40
tensa zangetsu [6.8K]

Answer:

6.32455532i

Step-by-step explanation:

Use the square root calculator too find it

5 0
2 years ago
The diameter of a circle is 34 feet. what is the circles circumference ?
Crazy boy [7]

Answer:

106.81

Step-by-step explanation:

first convert diameter to radius

  • radius = diameter / 2
  • radius = 34/2 = 17

now find circumference

  • circumference = 2πr
  • circumference = 2π(17) = 106.81

r = radius

3 0
2 years ago
Read 2 more answers
2 Points
faltersainse [42]

Answer:

the answer is C

Step-by-step explanation:

In the y intercept formula which is y=Mx+b the b in the formula represents the y intercept

5 0
3 years ago
This is worth 20 points.
Salsk061 [2.6K]

Answer:

CS M=2/3 , KP M=2/3

Step-by-step explanation:

Neither because, they have the same slope but CS is negative so, the slopes are in a line.

3 0
2 years ago
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