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MaRussiya [10]
3 years ago
14

Y=8-2x when x=8 the value of y

Mathematics
2 answers:
Lera25 [3.4K]3 years ago
8 0

Answer:

-8

Step-by-step explanation:

Given that x and y are two variables.  they are related by the function

y =8-2x

Since x and y are related, given one value we can find the other using this equation.

In our question, given that x =8

Substitute x value in the equation

y = 8-2x

y =8-2(8) = -8

Hence answer is -8:


Verify:  We verify by putting -8 for y and check whether x =8

-8=8-2x

Or 2x = 16

x =8

Verified

pantera1 [17]3 years ago
6 0
I believe your answer to this question is

8
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dsp73
 <span>Length of outer track = sum of length of 10 pieces = circumference of the outer circle 


if R is the Radius of outer circle then... 

Circumference of the outer track = 2pi*R 


Similarly the circumference of the inner track (with radius r) = 2pi*r 


length of each outer piece is 3.4 inch more than length of inner piece 

So total outer length is 10*3.4 =34 inches more than the inner length. 


=> Outer Circumference - Inner Circumference = 34 inches 

=> 2pi*R - 2pi*r = 34 

=> 2pi(R -r) = 34 

=> R-r = 34/2pi = 5.41 inches 

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6 0
3 years ago
Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit. What is th
zhenek [66]

Answer:

The percent error of Heather's calculation is <u>8%</u>.

Step-by-step explanation:

Given:

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit.

Now, to find the percent error of Heather's calculation.

The temperature of coffee Heather measures = 133.4° F.

Coffee's actual temperature = 145° F.

So, to get the measurement in error we subtract the temperature of coffee Heather measures from coffee's actual temperature:

145-133.4=11.6\°.

Now, to get the percent error:

\frac{11.6}{145}\times 100

=\frac{1160}{145}

=8\%.

Therefore, the percent error of Heather's calculation is 8%.

5 0
3 years ago
Hi I need help please
Mashutka [201]

Answer:

Trapezoid. Big to small = 3:1

Square. Enlargement

Step-by-step explanation:

base 1 of trapezoids respectively big to small are 6:2 or 3:2

The purple shape is an enlarged form of the black square.

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3 years ago
In the worst storm in Sunnyville history, 6 inches of rain fell in 8 hours. What was the amount of rainfall per hour?
Delvig [45]

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0.75 cm of rain per hour

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3 years ago
At the end of 8 years, Anna paid $400 interest for a loan. If the simple annual interest rate was 4%, how much did Anna borrow?
TiliK225 [7]

Answer:

<h2>$1250</h2>

Step-by-step explanation:

Use the formula i = prt

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3 years ago
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