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Eddi Din [679]
3 years ago
5

Find the constant of proportionality k. Then write an equation for therelationship between xandy(Example 2)2. X8 16y 10 2030 40E

SSENTIAL QUESTION CHECK-IN4. How can you represent a proportional relationship using an equation?20 nit 92432

Mathematics
1 answer:
klio [65]3 years ago
8 0
2) y= x times 5
The constant proportion is k=5

3) y=x times 4
The constant proportion is k=4

4)If total cost t is proportional to the number n of items purchased at a constant price p, the relationship between the total cost and the number of items can be expressed as t = pn.
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Please answer the question above
laiz [17]

Answer: 15.4 m

Step-by-step explanation:

The area of a parallelgoram is:

A = bh,

where b is the base and h is the height.

We know that the base is 7.7 meters, and the height is 2 meters, so we can substitute:

A = 7.7 (2)

A = 15.4 m

Hope this helps! :)

8 0
2 years ago
4x +8=2x + 3x +3 solve for x
velikii [3]

Answer:

x=5

Step-by-step explanation:

4x+8=2x+3x+3

2x+3x=5x

4x+8=5x+3

-4x

8=1x+3

-3

5=1x

5/1

x=5

4 0
3 years ago
Write an equation in slope-intercept form that passes through (-6,-2) and had a y-intercept located at y=-5
valina [46]

Answer:

(-6, -2) is the answer

Step-by-step explanation:

8 0
2 years ago
Leonard purchases a model boat kit for $67.53. He uses a coupon for $25 off a purchase of $50 or more. What is the discounted pr
DerKrebs [107]
Given that the original price of the model boat kit is $67.53 and he has a coupon of $25 off if a purchase is $50 or more. Since the purchase is more than $50, we will deduct 25 from 67.53 so the discounted price of the model boat kit would be $42.53. Hope this answers your question.
8 0
3 years ago
What are the mean absolute deviation and population standard deviation of this data set? Round to the nearest tenth if necessary
tekilochka [14]

Answer:

For a data set of N elements:

{x₁, x₂, ..., xₙ}

The mean is:

M = \frac{x_1 + x_2 + ... + x_n}{N}

The mean absolute deviation is:

MAD = \frac{|x_1 - M| + ... + |x_n - M|}{N}

And the population standard deviation is:

PSD = \frac{\sqrt{|x_1 - M|^2 + ... + |x_n - M|^2} }{\sqrt{N}}

In this case, our set has 5 elements, and the set is:

{2, 4, 6, 9, 14}

The mean of this set is:

M = \frac{2 + 4 + 6 + 9 + 14}{5} = 7

The mean absolute deviation is:

MAD = \frac{|2 - 7| + |4 - 7| + |6 - 7|+ |9 - 7| + |14 - 7| }{5} = 3.6

And the population standard deviation is:

PSD =  \sqrt{\frac{|2 - 7|^2 + |4 - 7|^2 + |6 - 7|^2+ |9 - 7|^2 + |14 - 7|^2 }{5}} = 4.2

6 0
2 years ago
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