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s2008m [1.1K]
3 years ago
15

What is direct variation?

Mathematics
2 answers:
Anna007 [38]3 years ago
5 0
Mathematical relationship between two variables  that can be expressed by an equation which one variable is equal to a constant times another.
natulia [17]3 years ago
3 0
Direct variation is: When two variable quantities have a constant (unchanged) ratio, their relationship is called a direct variation. It is said that one variable "varies directly" as the other. The formula for direct variation is: y = kx.

For example: Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = 3. Also, the equation of this direct variation is y = 3x.

Hope I helped!

- Amber<span />
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Help? also explain pls
natulia [17]

Answer:

158ft²

Step-by-step explanation:

Break it up!

Find the area of the three smaller shapes and add them together!

12+18+128= 158

5 0
3 years ago
Read 2 more answers
Please help click on the image below
scoray [572]
I can't read it can u zoom I
3 0
3 years ago
GREG PUTS MONEY IN HIS DAUGHTERS PIGGY BANK EVERY DAY HE PUTS IN $0.75 BUT ON SUNDAYS HE PUTS IN $5.75 IF HE CONTINUES THUS FOR
Harman [31]

Greg's daughter will have $533 in her piggy bank in a year

The money in the piggy bank would increase everyday by the amount put in it. There are seven days in a week. If he puts $0.75 everyday apart from on Sundays when we puts $5.75, the amount that would be in the piggy bank in a week is the sum of the money deposited each day.

Total amount in a week = total amount deposited from Monday to Saturday + amount deposited on Sunday

  • Amount that Greg puts in 6 days : ($0.75 x 6) = $4.50
  • Amount deposited on Sunday = $5.75
  • Total amount =  $5.75 + $4.50 = $10.25

The total amount Greg's daughter would have in a year is a function of the number of weeks in year and the total amount saved in a week

Total amount in a year = number of weeks in year x the total amount saved in a week

  • Number of weeks in year = 52
  • The total amount saved in a week = $10.25

$10.25 x 52 = $533

In order to determine how much Greg's daughter would have in a year, first determine how much she would have in a week. Multiply this amount by the number of weeks in a year

A similar question was solved here: brainly.com/question/18614558?referrer=searchResults

7 0
2 years ago
Evaluate this expression 5•10^2+3<br><br> A.) 2503<br><br> B.) 103<br><br> C.) 503<br><br> D.) 300
qwelly [4]

Answer:

503 or C

Step-by-step explanation:

10^2= 10 X 10 = 100

100 x 5 = 500

500 + 3 =503

8 0
3 years ago
Read 2 more answers
The line of best fit for a scatter plot is shown:
scoray [572]
(0,6)(4,3)
slope = (3 - 6) / (4 - 0) = -3/4
ur y int (where the line crosses the y axis) is (0,6)

in y = mx + b form, the slope will be in the m position and the y int will be in the b position. 

Therefore, ur equation is : y = -3/4x + 6 <==
8 0
3 years ago
Read 2 more answers
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