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Keith_Richards [23]
3 years ago
5

The variables Y and X have a proportional relationship, and y=12 when x=5. What is value of y when x =8? Enter your answer in th

e box.
y=_____

Mathematics
2 answers:
kkurt [141]3 years ago
4 0

Answer:

y=19.2

Step-by-step explanation:

Here as y is proportional to x

so

y=kx

When y = 12 , x = 5

We have

12 = 5k

k=\frac{12}{5}=2.4

So now we have

y=2.4x

When x = 8

y = 2.4(8)

y = 19.2

Dimas [21]3 years ago
4 0

Answer:

19.2

Step-by-step explanation:

X=12/5

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Lian is paid for SR 75 per hour. Using p for her pay and h for the hours of work, which function rule represents
Andru [333]

Answer:

The function p = 75h represents  this situation.

Step-by-step explanation:

We know the equation of linear equation in the slope-intercept form is

y = mx+b

where

m = rate of change = slope

b = y-intercept

  • Let 'h' be the number of hours
  • Let 'p' be the pay

Given that Lian is paid SR 75 per hour.

so the rate of change of slope = m = 75

As there is no initial condition, so b = 0

as

y = mx+b

Now, mapping the information data into the slope-intercept form

  • p = y
  • m = 75
  • h = x
  • b = 0

Thus, the equation becomes

p = 75h

Therefore, the function p = 75h represents  this situation.

VERIFICATION:

Given the equation

p = 75h

for h = 1

p = 75(1)

p = 75

Thus, Liam is paid SR 75 per hour.

4 0
2 years ago
Janelle wrote the matrix addition below. Which statement is true?
Sonja [21]

Option A is correct.

Step-by-step explanation:

We need to identify which statement is true in matrix addition.

In matrix addition we just add the corresponding elements.

In the options given only Option A is correct i.e, (n+4)-7  = 18

All other options have error in them.

In Option B there should be -12 instead of +12

In Option C there should be -11 instead of 11

In Option D we are not adding corresponding entries.

So, Option A is correct.

Keywords: Matrix addition

Learn More about Matrix Addition at:

  • brainly.com/question/10666510
  • brainly.com/question/4034547

#learnwithBrainly

6 0
3 years ago
Read 2 more answers
What is the midpoint of the vertical line segment graphed below? (2, 4), (2, -9) A. (4, -5). B. (2, -5/2). C. (2, -5). D. (4, 5/
omeli [17]

Answer:

B. (2, -\frac{5}{2})

Step-by-step explanation:

Given:

(2, 4) and (2, -9)

Required:

Midpoint of the vertical line with the above endpoints

Solution:

Apply the midpoint formula, which is:

M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})

Where,

(2, 4) = (x_1, y_1)

(2, -9) = (x_2, y_2)

Plug in the values into the equation:

M(\frac{2 + 2}{2}, \frac{4 + (-9)}{2})

M(\frac{4}{2}, \frac{-5}{2})

M(2, -\frac{5}{2})

8 0
2 years ago
PLEASE HELP!! good luck will be brought back to you ❤️Which statement about the triangles is true?
vekshin1
I think it is the first one
3 0
3 years ago
(9/16)^−1/2 How do I solve this equation?
vlada-n [284]
\left(\dfrac{9}{16}\right)^{-\tfrac{1}{2}}=\\
\left(\dfrac{16}{9}\right)^{\tfrac{1}{2}}=\\
\sqrt{\dfrac{16}{9}}=\\
\dfrac{4}{3}
4 0
3 years ago
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