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iragen [17]
3 years ago
10

Calculator

Mathematics
1 answer:
aliya0001 [1]3 years ago
5 0
91.125 is the answer
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If y varies directly with x and y is 37.4 when x is 17, what is the value of x when y is 13.2?
borishaifa [10]

Answer:

6

Step-by-step explanation:

We have y ∝ x which is another way of saying y varies directly with x

We can rewrite the direct proportion relation y ∝ x as y = k.x where k is a constant - the constant of proportionality

So y = kx or x = y/k

using y and x values know, we can solve for k and then solve for any x given y

We have

y = 37.4 =  k (17)

Therefore k = (37.4/17) = 2.2

To find x given y = 13.2, use the second equation
x = y/k = 13.2 / 2.2 =  6

8 0
1 year ago
Question 13 options:<br><br><br> What is the slope of the line of the graph?
Elena-2011 [213]

Answer:

Step-by-step explanation:

To find the slope, pick any two points fromthe line.

(2,2)  & (0,-4)

x₁ = 2 & y₁ = 2

x₂ = 0 & y₂ = - 4

\boxed{Slope=\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}}

          \sf =\dfrac{-4-2}{0-2}\\\\\\ =\dfrac{-6}{-2}\\\\\\=3

Slope = 3

At y-intercept x = 0.

From the graph, y-intercept = -4

Equation of the line: y = mx + b

y = 3x - 4

3 0
2 years ago
1) A TV is on sale for 20% off. If the sale price is $700, what is the original
barxatty [35]

Answer:

140

Step-by-step explanation:

20% of 700

so 20/100 * 700

20*7

140

4 0
3 years ago
Please help with my geometry
faust18 [17]

Answer:

www.mahtpapa.com

Step-by-step explanation:

5 0
3 years ago
What does X equal?? Please help me out!!
Alja [10]
X = 80 + 20 = 100 degrees
3 0
3 years ago
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