solve the floowing systems of euations algebrically.
x+8=z
2x+8-2z=4
-x-y+3z=2
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x + 8 = z
x + 8 - 8 = z - 8
x = z - 8
the rest is in a capture
Related Questions
I'm begging you please help me!!! Thank you! ♡
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473 heartbeats in 5 1/2 minutes
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Answer:
86 heartbeats per minute
Step-by-step explanation:
i assume that's your question?
the number of heartbeats per minute is 86.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given that, 473 heartbeats in [tex]5\frac{1}{2}[/tex] = 11/2minutes
Number of heart beats per minute = Total number of heart beats ÷ Number of minutes
= 473÷ 11/2
= 473×2/11
= 43×2
= 86 beats per minute
Therefore, the number of heartbeats per minute is 86.
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What is the difference between the median and the range in the data set shown below?
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The range is the difference between the lowest and highest
Ex: 1,4,5,6,7 7-1=6 so 6 would be the range
Hope this helps
Have a great day/night
Answer:
1,4,5,6,7 7-1=6 so 6 would be the range
1,4,5,6,7 5 would be the median
Step-by-step explanation:
Given the triangle below, what must be the value of x? Use the scratchpad tool, if needed.
Please i need help!!
Answers
Answer:
8x
Step-by-step explanation:
Hope this helps:)
Sydney purchased a used car for $3,500. Her state charges a 5% tax for the car, $85 for registration, $60 for a new title certificate, and $35 for a state safety and emissions inspection. How much does Sydney need to pay for these extra charges, not including the price of the car?
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Answer:
$355
Step-by-step explanation:
85+60+35=180
5% of 3,500 is 175
175+180=355
so if i did the math right that means the answer is $355
Hopefully the right answer
Solve the system by substitution
x=y
6x-3y=30
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Answer: (x, y) = (10, 10)
Since x = y, replacing y with x in 6x - 3y = 30 we have 6x - 3x = 3x = 30, so x = 30/3 = 10. Then y = x = 10, so the solution is (10, 10).
i hope this helps! :D
help me thank you ! appreciate it
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Answer:
what does it mean by equation
2. Find the equation of the line with a slope of -2 and through the points (1,-17)
Answers
Answer:
y=−2x−15
Step-by-step explanation:
The formula for the volume of a cylinder is V=πr2h. where r is the radius of the cylinder, and h is the height of the cylinder. Rewrite the formula to solve for h in terms of r and V.
h = ?
please help
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2. AABC is an isosceles triangle. Find the length of AB.
5x+7
B
5x - 6
3x + 4
С
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Which statement is true about minus 14 and minus 8?
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Answer:
minus 14 less than minus 8 because minus 14 is located to the left of minus 8 on the number line.
Step-by-step explanation: Hope this is right! and I hope it helps you UwU
What is the slope of the line in the graph?
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Answer: 1
Step-by-step explanation:
Slope=rise/run
Here we rise 2 and run 2
2/2=1
Answer:
1
Step-by-step explanation:
The first thing you would want to do is know that the slope is the change in y over the change in x. for this line, it goes up one, over one. so your slope is just one. if you were to write the slope-intercept form equation, it would be y=x+1
Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.
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Given:
A figure.
To find:
The values of x and y.
Solution:
We know that, in a right angled triangle,
[tex]\sin \theta =\dfrac{Perpendicular}{Hypotenuse}[/tex]
[tex]\sin 60^\circ =\dfrac{x}{16}[/tex]
[tex]\dfrac{\sqrt{3}}{2} =\dfrac{x}{16}[/tex]
Multiply both sides by 16.
[tex]\dfrac{\sqrt{3}}{2}\times 16=\dfrac{x}{16}\times 16[/tex]
[tex]8\sqrt{3}=x[/tex]
And,
[tex]\cos \theta =\dfrac{Base}{Hypotenuse}[/tex]
[tex]\cos 60^\circ =\dfrac{y}{16}[/tex]
[tex]\dfrac{1}{2}=\dfrac{y}{16}[/tex]
Multiply both sides by 16.
[tex]\dfrac{16}{2}=y[/tex]
[tex]8=y[/tex]
Therefore, the missing side lengths are [tex]x=8\sqrt{3}[/tex] and [tex]y=8[/tex].
Which fraction converts to a terminating decimal number?
OA.1/6
OB.2/9
OC.3/8
OD.4/7
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What is 1/4 divided by 9/10 rewritten with an important fraction?
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Step-by-step explanation:
[tex]{:}\hookrightarrow\sf \dfrac {1}{4}\div \dfrac {9}{10}[/tex]
[tex]{:}\hookrightarrow\sf \dfrac {1}{4}\times \dfrac {10}{9}[/tex]
[tex]{:}\hookrightarrow\sf \dfrac {10}{36}[/tex]
[tex]{:}\hookrightarrow\sf \dfrac {5}{18}[/tex]
Please help me with this. I forgot to do my warm up this week!!! I have two screenshots bc I couldn´t fit the whole question in.
Answers
Answer:
A
Step-by-step explanation:
well since it is 130 per month, the first month would be 130, then the second month would double to 260 and etc.
{(-15, 3), (-5, 1), (0, 0), (10, -2)}
Constant:
Equation:
Direct & inverse variation (identify the constant of variation,then write the direct variation equation to represent the relationship) please helppp!!
Answers
Answer:
[tex]k = -\frac{1}{5}[/tex] -- Constant
[tex]y = -\frac{x}{5}[/tex] -- Equation
Step-by-step explanation:
Given
[tex]\{(-15, 3), (-5, 1), (0, 0), (10, -2)\}[/tex]
Solving (a): The constant of variation
The given parameter is of the form (x,y) and the variation constant is calculated using:
[tex]k = \frac{y}{x}[/tex]
For:(-15,3), k is calculated as
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{3}{-15}[/tex]
[tex]k = -\frac{1}{5}[/tex]
For (-5,1)
[tex]k = \frac{y}{x}[/tex]
[tex]k = \frac{1}{-5}[/tex]
[tex]k = -\frac{1}{5}[/tex]
The equation is calculated using the following rule:
[tex]y = kx[/tex]
Substitute [tex]-\frac{1}{5}[/tex] for k
[tex]y = -\frac{1}{5} * x[/tex]
[tex]y = -\frac{x}{5}[/tex]
Just help me pls and thank u
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Keep: 7
Change: division to multiplication
Flip: 9/5 to 5/9
Can you guys please help me
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Answer:
9 < [tex]\sqrt{82\\}[/tex] < 10
Step-by-step explanation:
The sqrt of 82 is rounded to 9.1. The two integers above and below it are 9 and 10.
I hope this helps!
whats the percent increase from 45 to 56
Answers
Answer:
24.44%
Step-by-step explanation:
1) Find the difference between 45 and 56 as a number.
2) Divide the result from Step 1 by the starting number 45.
3) Multiply the result from Step 2 by 100 to get it in terms of percent.
The three steps above can be made into a formula. Thus, to find the percent change from 45 to 56, we use this formula:
((Y-X)/X)*100 = Percent Change
X is the starting number 45, and Y is the ending number 56 that it changed to. When we enter these numbers into the formula, we get:
((56-45)/45)*100 = 24.44%
Thus, the answer to the question "What is the Percent Change from 45 to 56?" is:
The sum of the numbers X, Y, and Z is 40. The ratio of X to Y is 1:2 and the ratio of Y to X is 2:5. What is the value of Y?
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Step-by-step explanation:
Since X : Y = 1 : 2, X = 0.5Y.
Since Y : Z = 2 : 5, Z = 2.5Y.
We have X + Y + Z = 4Y = 40. Hence Y = 10.
[tex]y=10[/tex]
Ratio:A ratio in mathematics shows how many times one number is contained in another. For instance, if a dish of the fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio of 4:3). The ratio of oranges to the overall amount of fruit is 8:14, and the ratio of lemons to oranges is 6:8 (or 3:4) (or 4:7).A ratio can have any number of quantities, such as counts of people or things or measurements of length, weight, time, etc. Both numbers must be positive in most situations.Solution -
Given -
[tex]x+y+z=40\\x:y=1:2\\y:x=2:5[/tex]
To find - [tex]y[/tex]
Since,
[tex]x:y=1:2,x=0.5y\\y:x=2:5,z=2.5y\\x+y+z=4y+40\\y=10[/tex]
Therefore, [tex]y=10[/tex].
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hello!! how do you find y intercept
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Answer:
you find the point where the line intersects
two angles from a linear pair. the measure of one angle is 2/3
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Answer:
First angle = 117 degrees.
Second angle = 63 degrees.
Step-by-step explanation:
will give brainliest if it is the correct answer and explained and a lot of points
Answers
Answer:
18
Step-by-step explanation:
Area = base x height
So you would start by multiplying you 2 side lengths given:
Area = 2 sqrt 3 x sqrt 27
2 sqrt 3 x sqrt 27 = 18
Once multiplied, you will get you area. Which is 18 units squared.
Jeff and kevin went to the fair with $20 each. They paid $6 for two rides, $2 for cotton candy and bought two drinks at $3 each. How many money do they have left over?
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Answer:
Jeff and Kevin have $20 left
Step-by-step explanation:
do (20+20)-(6+6)-2-(3+3)=20
One fifth of a number is equal to triple that number less 28.
Let the unknown number be x. Write this word problem as an equation using the variable x.
Answers
Answer:
x=10
Step-by-step explanation:
x=(3x-28)5
-14x=-140
x=10
what are some fun games to play on your computer
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I NEED HELP PLSSSSSSSSS……………
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Answer:
4n+2 (B)
Step-by-step explanation:
Answer:
the answer is b
Step-by-step explanation:
because the value of terms are going up by 4 every time, so if you subtract 4 you get 2 and the position would be 0 making 2 the y-intercept and then slope is= rise/run and the equation is rising 4 units for every 1 unit moved, so the slope is 4/1 or 4. plug all of that into the equation and you get 4n + 2
Which figure has a line of symmetry and rotational symmetry
Answers
Answer:
a i believe
:D glad to help you!!!
Answer:
A
Step-by-step explanation:
Two vertical angles have measures of (4x + 8) and (7x -22). What is the measure of the two angles?
Answers
Answer:
48
Step-by-step explanation:
Vertical angles are congruent
7x - 22 = 4x + 8 {Add 22 to both sides}
7x = 4x + 8 + 22
7x = 4x + 30 { subtract 4x from both sides}
7x - 4x = 30
3x = 30
x = 30/3
x = 10
4x + 8 = 4*10 + 8
= 40 + 8
= 48
7x - 22 = 7*10 - 22
= 70 - 22
= 48