Y=8 when x=20 find y when x= 30
Answers
Answer:
y=13
Step-by-step explanation:
if x=20 when y=8 (we can creat equation )
x=2y+4 (you can prove that the equation is correct by substitute )
so the question is if x=30 find the value of y
30=2y+4
30‒4=2y
26=2y
26/2=2y/2
13=y
i hope this helps you
Related Questions
The Waist to Hip Ratio (WHR) is a ratio, commonly expressed as a decimal that has been shown to be a good predictor of possible cardiovascular problems in both men and women. If a male has a WHR greater than 1, he is considered to be at high risk for cardiovascular problems. Calculate the WHR of a male with a waist measurement of 40 inches and a hip measurement 2 inches less.
Square root of 40 - 2 rounded to the nearest tenth
What is the equation in slope-intercept form of the line that passes through the points ( -4 , 2) and (12, 6)?Group of answer choicesy = 0.25x − 4.5y = 4x − 42y = 4x + 18y = 0.25x + 3
What (-3) x 2 equal?
Answers
The solutions of the quadratic equation x² + 13 = 8x + 37 are x = 4 + 2√10 and x = 4 - 2√10.
What is a quadratic equation?
The quadratic equation is defined as a function containing the highest power of a variable is two.
The given equation as:
x² - 8x + 13 = 37
Subtracting 37 from both sides, we get:
x² - 8x - 24 = 0
Now, we have the equation in standard form, so we can use the quadratic formula to find the solutions:
x = (-b ± √(b² - 4ac)) / 2a
Here, a = 1, b = -8, and c = -24.
Substitute these values into the quadratic formula, and we get:
x = (-(-8) ± √((-8)² - 4(1)(-24))) / 2(1)
x = (8 ± √(64 + 96)) / 2
x = (8 ± √160) / 2
x = (8 ± 4√10) / 2
Simplifying, we get:
x = 4 ± 2√10
Therefore, the solutions of the quadratic equation x² + 13 = 8x + 37 are x = 4 + 2√10 and x = 4 - 2√10.
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Answer:
Step-by-step explanation:
B. x ≥ -1
C. x ≤ -5 or x ≥ -1
D. x ≥ -5 or x ≥ -1
Answers
4 | x + 3 | ≥ 8 =>
| x + 3 | ≥ 2
Then eliminate the absolute operator like this:
| x + 3 | ≥ 2 =>
-x-3 ≥ 2 or x+3 ≥ 2
Simplify:
-x ≥ 5 or x ≥ -1=>
x ≤ -5 or x ≥ -1
That's answer C
4x + 12 >=8
4x >= =4
x >= -1
or
4x + 12 <= -8
4x <= -20
x <= -5
Answer is C
Answers
Answer:
$1.35 per yard
Step-by-step explanation:
$8.10/6=$1.35
Answer:
$1.35
Step-by-step explanation:
$8.10 divided by 6
Answers
There is 1/4 flour will be in each container
What is Division?
A division is a process of splitting a specific amount into equal parts.
Given that A chef has 1/2 a pound of flour
The chef has to divide 1/2 a pound of flour to two containers equally.
We need to find how much flour will be in each container.
Which means we have to divide 1/2 by 2.
(1/2)/2
One by two whole divided by 2
1/2 is the numerator and 2 is the denominator
=1/2×2
=1/4
Hence, there is 1/4 flour will be in each container
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Answer:
1/4
Step-by-step explanation:
Answers
58+360n, for any integer n.
Explanation:
412° is more than 360°, which is a full circle. To find the smallest angle that is coterminal with 412°, we subtract 360° from it:
412-360 = 58°
This means that 58° is the smallest coterminal angle with 412°.
Every whole circle added on to this will also be coterminal with it. Again, a whole circle is 360°; this means that every 360° increment that is added to 58° will be coterminal with it.
To represent multiples of 360, we write 360n. Adding this to our original angle, we have 58+360n.
This works for positive and negative numbers; for example, if you use n = -1:
58+360(-1) = 58-360 = -302
Graphing this angle, we would go counterclockwise from the positive x-axis; we would land at 58°, so it would still be coterminal with 412°.
And then, if you add any whole number of 360s onto it,
you get the same angle again.
So it's 58+360n with n=any whole number
(n=0 doesn't work, so it's not 'integer'. '0' is an integer.)
Answers
1/10 of 3.0 is 0.3
3.0*(1/10)=0.3