Step-by-step explanation:
Subtract 2z2z from both sides of the equation.
x−2y+z=1x-2y+z=1
y=5−2zy=5-2z
x+y+3z=8x+y+3z=8
Replace all occurrences of yy with 5−2z5-2z in each equation.
x−2(5−2z)+z=1x-2(5-2z)+z=1
y=5−2zy=5-2z
x+5−2z+3z=8x+5-2z+3z=8
Simplify each equation.
x−10+5z=1x-10+5z=1
y=5−2zy=5-2z
x+5+z=8x+5+z=8
Move all terms not containing xx to the right side of the equation.
x=11−5zx=11-5z
y=5−2zy=5-2z
x+5+z=8x+5+z=8
Replace all occurrences of xx in x+5+z=8x+5+z=8 with 11−5z11-5z.
x=11−5zx=11-5z
y=5−2zy=5-2z
(11−5z)+5+z=8(11-5z)+5+z=8
Simplify (11−5z)+5+z(11-5z)+5+z.
x=11−5zx=11-5z
y=5−2zy=5-2z
−4z+16
Answer: (-9, 1, 4)
Step-by-step explanation:
its right on acellus
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Answer: b
Step-by-step explanation:
B
Answer:
The American Revolutionary War (1775–1783), also known as the American War of ... Britain remained under siege in Gibraltar but scored a major victory over the French navy. ... in America, and the colonial legislatures argued that they had exclusive right .... Howe then seized control of New York City on September 15
Step-by-step explanation:
Square A has an area of 18a2 + 862 – 24ab.
Square B has an area of (3a – 2b)2
Determine which square has a greater area? Explain your answer.
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-6x-2y=42
x-y=-15
Multiply x-y=-15 by 6 ( eliminate the x first)
6(x-y)=6(-15)
(6)(x)=6x
(6)(-y)=-6y
6(-15)=-90
-6x-2y=42
6x-6y=-90
eliminate x the systems of equations by subtracting
-6x+6x-2y+-6y=42-90
-2y-6y=42-90
-8y=-48
divide both sides by -8 to get y by itself
-8y/-8=-48/8
y=6
Find x by substitution method
use y=6 into one of the system of equations
x-y=-15
x-6=-15
move -6 to the other side
sign changes from -6 to +6
x-6+6=-15+6
x=-15+6
x=-9
answer:
(-9,6)
Write a story to represent the division problem 15÷ 1/9
Answer:
Katherine is a nurse and has 15 feet of bandages. One of her patients was injured and needed 1/9 of the bandages she had. How many feet of bandages did she use on her patient?
Step-by-step explanation:
In 2000, the circulation of a local newspaper was 3,250. In 2001, its circulation was 3,640. In 2002, the circulation was 4,100.
A-Find the percent of increase in the newspaper’s circulation from 2000 to 2001 and from 2001 to 2002.
B-Which period had a higher percent of increase, 2000 to 2001, or 2001 to 2002?
Answer:
Percent increase from 2000 to 2001 is 12% and from 2001 to 2002 is 12.6%. Thus period of 2001 to 2002 has higher increase percentage.
Solution:
Given that,
Total circulation of local newspaper in 2000 = 3250
Total circulation of local newspaper in 2001 = 3640
Total circulation of local newspaper in 2002 = 4100
Finding percent of increase in the newspaper’s circulation from 2000 to 2001:
Finding percent of increase in the newspaper’s circulation from 2001 to 2002:
As we can see 12% < 12.6%
So period of 2001 to 2002 has higher increase
Help what’s the perimeter?
Answer:
2.8
Step-by-step explanation:
From the similarity ratio we can calculate the missing side length for the smaller rectangle
and when we add all side lengths the answer is 2.8
Using each picture or description of a triangle, write and solve an equation.
Answer:
Step-by-step explanation:
All angles in a triangle add up to 180º, so we can make this equation.
7x-2+5x-10+4x=180
Combine like terms
16x-12=180
Add 12
16x=168
Divide
x=16.5
The price of a pair of sunglasses was reduced from $55 to $33. By what percentage was the price of the sunglasses reduced?
What would (2,2) be as a Equation??
Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL.
The centroid for △JKL is at point M. What is JM rounded to the nearest tenth?
prolly D
..............................
The distance between the point JM will be 4.81 units.
What is the centroid of the triangle?In science and math, the centroid of a planar figure or firm figure, also known as the point of intersection or center of the figure, is the mean absolute position of all of the other points on the subject's surface.
The centroid of the triangle is given as,
(x, y) = [(x₁ + x₂ + x₃) / 3, (y₁ + y₂ + y₃) / 3]
Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL. Then the centroid for △JKL is at point M is given as,
(x, y) = [(7 + 1 + 5) / 3, (8 + 2 + 2) / 3]
(x, y) = (13/3, 12/3)
(x, y) = (13/3, 4)
Then the distance between the point JM is calculated as,
D² = (13/3 - 7)² + (4 - 8)²
D² = 7.1111 + 16
D² = 23.11
D = √23.11
D = 4.81 units
The distance between the point JM will be 4.81 units.
More about the centroid of the triangle link is given below.
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#15, what is this answer ?
Answer:
43.39
Step-by-step explanation:
It's easy division/
Plsss help meeee I need the answer!!
Answer:
A. p=3-2h
h=9-p
Step-by-step explanation:
Justin buys 3 less than twice as many hot dogs
For any rectangle ABCD, determine whether each statement is always, sometimes, or never true. ∠a≅∠b
Answer:
always
Step-by-step explanation:
no matter what the angles of a rectangle will be 90 degrees so the answer is always
Answer:
Step-by-step explanation:
Consecutive angles are equal only when dealing with a square or a rectangle. All other 4 sided figures do not have this property.
So the answer is sometimes.
anyone please help!!!
Answer:
11
Step-by-step explanation:
Answer:22(a)
Step-by-step explanation:22 is a factor of 66
A corner of a rectangle is cut, creating a trapezoid.
What is the value of x?
A. 105°
B. 115
C. 125°
D. 135°
Answer:
the last option of 135°.
Step-by-step explanation:
The total degree of the rectangle is 360°. But it was sliced, so with the remaining measurements, subtract each of them from 360°.
90°+90°+45°+x°=360°
225°+x°=360° add all of the values on the left side, then subtract 225 on both sides to solve for the value of x°.
x°=135°
Use intercepts to graph the linear equation 5x + 3y = 30.
Answer x=6 and y=10
Explanation:
Replace each variable in turn with 0 and solve
5x+3y=30 Put zero in place of x and solve for y
5(0)+3y=30
[tex]\frac{3y}{3} =\frac{30}{3}[/tex]
y=10 The y- intercept is 10
5x+3y=30 Put zero in place of y and solve for x
5x+3(0)=30
[tex]\frac{5x}{5} =\frac{30}{5}[/tex]
x=6 The x-intercept is 6
can anyone help me ?
Answer: m∠T = 48°
ΔMAT has MA = MT
=> ΔMAT is a isosceles triangle at M
=> ∠A = ∠T = (180° - ∠M)/2
=> x + 20 = (180 - 3x)/2
⇔ 2x + 40 = 180 - 3x
⇔ 5x = 140
⇔ x = 140/5
⇔ x = 28
=> ∠A = ∠T = 28 + 20 = 48°
Step-by-step explanation:
where my latinas at tho :)
Answer:
lol
Step-by-step explanation:
I'm freaking Latino
What is the answer of 11
Answer:
2
Step-by-step explanation:
(1/2)(6x-2) - 3(x-1)
take the (1/2) and distribute it to the 6x and the 2
(3x-1) - 3(x-1)
next, distribute the 3 to the x and the 1
(3x-1) - (3x-3)
then you simplify
3x-3x cancels
-1 - -3 is the same as -1 +3
so you get 2
please help!!
What is the experimental probability of drawing a red marble, given the following results?
blue: 8
green: 5
red: 7
a. 7/13
b. 13/20
c. 7/20
d. 7/8
Answer:C
Step-by-step explanation: You want to add up all the marbles, and then take the red marbles and divide by all the marbles 7/20
Simplify 3 raised to the power of 4 multiplied by 3
243
3 to the power of 4 is 81 times 3 is 243
Answer:
3^5
Step-by-step explanation:
3^4*3
Multiplying exponents
2.1 3^4 multiplied by 3^1 = 3^(4 + 1) = 3^5
Hope this helps!
Brain-List?
Which calculation will give the best estimate of the result of 23 x 4.8?
0 20 0.5
0 30 x 0.5
O 20 x 5
O 30 x 5
Answer:
20x5
Step-by-step explanation:
1) what is one half of 30?
2) what is two thirds of 15 miles?
Answer:
15 and 10 miles
Step-by-step explanation:
one half of 30 = 15
two thirds of 15 miles =10 miles
A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure? 12° 45° 72° 90°
Answer:
12 degrees is the correct answer.
Step-by-step explanation:
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identify the slope and write the equation of the line .
Answer:
y=-2x+5; slope is -2
Step-by-step explanation:
slope is rise/run. we can see it rises 2 and goes left one which would give us rise/run=2/-1=-2. that is our slope.
using y=mx+b to write the equation, m is slope and b is the y-int.. we can see that the y-int. is (0,5). we can plug 5 into b.
plugging b and m in we can get the equation: y=-2x+5
Which is the simplified form of 6w+2/3+3w
Ray earns $15 an hour for up to 40 hours a week. If he works more than 40 hours a week, he is paid time and a half. That means Ray is paid 150% of his hourly wage for every hour he works over 40 hours.
How much additional money does Ray earn for every hour he works over 40 hours?
Last week, Ray worked 46 hours. He incorrectly calculated he earned $45 of additional pay. What was Ray’s error when he miscalculated his overtime pay? Explain your answer.
How much was Ray’s paycheck for working 46 hours? Show your work.
Would Ray make more money working 40 hours a week for two weeks or working 32 hours one week and 46 hours the next? Justify your solution.
For every hour he works over 40 hours, he is paid an additional $7.50.
Ray’s error when he miscalculated his overtime pay is +$45.
How to calculate the error?Suppose the actual value and the estimated values after the measurement are obtained. Then we have:
Error = Actual value - Estimated value
His normal pay is $15/h
150%/100 = 1.5
Multiply his normal pay by the rate in decimal form;
$15 X 1.5 = $22.5
His OT pay is $22.5/h.
Additional money = (OT pay) - (Normal pay)
= $22.5 - $15
= $7.5
Or $7.5 = $7.50
Thus, For every hour he works over 40 hours, he is paid an additional $7.50.
Ray actual pay for the week was $100 then from the question he incorrectly calculated it as {$100 + $45} = $145 which is $45 above his actual pay.
Error = measured value - actual value.
Error = $145 -$100 =$45.
Since the value $145 is greater than his actual pay $100, we have to include a positive sign to the error $45.
Therefore, Error = +$45.
Learn more about this concept here;
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HELP ILL MARK BRAINLIEST
Answer:
5.3f
Step-by-step explanation:
***If you found this answer please press the heart button and mark me brainliest, thanks!***
Write a linear expression in simplest form to represent the perimeter of the triangle.
Answer:
x +5
Step-by-step explanation:
5x-2+3x+4+2x+9
5x-2x=3x
3x-3x=x
-2+2=0
0+4=4
4-9 =5
solve for all the values of the interior angles
Answer:
x = 6
Step-by-step explanation:
measure of angle E: 5(6) + 8 = 38
measure of angle D: 6(6) + 8 = 44
measure of angle C: 180 - 82 = 98
check answers by adding all 3 angle measures to make sure they equal 180 degrees