2. Solve the system by substitution. (1 point)
2x – y + z = -4
z = 5
-2x + 3y - 2 = -10
O(-8,7,5)
O(-8. -7,5)
O(8, -7,5)
O(-8, -7,-5)
Answers
Answer:
Answer for this one is second one (-8,-7,5)
Step-by-step explanation:
Hope it will help you :)
Related Questions
The total cost, y, for Leah and x friends to go to an amusement park can be modeled by a linear function. The amusement park charges an entrance fee of $45.25 per person and a parking fee of $10 per car. Leah's car has seating for a maximum of 6 people.
What is the domain of the function for this situation?
Answers
45x6=270.270 is the total for the friends.However instead you have to do 45x7=315.Because its Leahs friends and LEAH.So now the car.315+10=325.So your answer is 325
HELP HELP HELP
A house painting company charges $350 plus $15 per hour. Another company charges $275 plus $20 per hour. Write an equation that represents when both companies will cost the same amount. How long will the job be when both companies charge the same amount? How much will they charge?
Question 1: Write an equation.
Question 2: How long will the job be when both companies will cost the same amount?
Question 3: How much will they charge?
Answers
Answer:
BelowI hope it helps ♥Step-by-step explanation:
1. Equation representing when both companies will cost the same amount :
[tex]350 + 15x = 275 + 20x[/tex]
2. Let x equal the number of hours a job takes , then the first house painting company will charge 350+15x , the second house painting will charge 275 +20x. If the two companies charge the same amount , we will have;
[tex]350 +15x = 275+20x\\\\350 - 275 = 20x - 15x\\\\75 = 5x\\\\\frac{75}{5} = \frac{5x}{5} \\\\15 = x\\\\x = 15\:hours[/tex]
3. For a job that takes 15 hours , the first company will cost ;
[tex]350 + 15(15) = 575[/tex]
For a job that takes 15 hours , the second company will cost ;
[tex]275+20x\\\\275+20(15)\\\\275 +300\\\\=575[/tex]
PLEASE HELP ME WITH THIS PROBLEM!!!!!!!!!!
The following figures are not drawn to scale but AB and CD are straight lines. Find x.
Answers
Answer: x = 30
Step-by-step explanation:
Since AB and CD are straight lines, vertical angles formed by them are congruent. Angle DOB is equal to angle AOC which is equal to 2x. Since you know that a straight angle is equal to 180 degrees, you can say :
2x + 90 + x = 180
3x + 90 = 180
3x = 90
x=30
Hope this helped :)
Kelly purchased 6 equally-priced CDs for a total of $75.30 what is the cost per CD?
Answers
Answer:
$12.55 per CD
Step-by-step explanation:
If each CD is of equal price, you must then divide the price by the number of CD's. (75.30/6=12.55)
Answer:
$75.30/6 = $12.55 per CD
Step-by-step explanation:
Since the CDs are equally-priced, my thought is that you would divided the quantity that you purchased by your total to get your answer. So, your total, $75.30 divided by, the amount of CDs purchased, 6. This would lead you to the answer $12.55, which is the cost of each CD. To check your answer you would multiply $12.55 by 6 to get $75.30.
Hope this helped! :D
421 × 18 ≈ ____ × ____ = ____
Answers
Answer:
Step-by-step explanation:
3473 8209ewu8wpwads =a d=waduwa sd a-= dwausS-d wa-sd was-d-aaa-d w=a dwa98-dhs;odwa s7dwa=w=da=da-dad-a w8ahspd-wasd wa-d 8-wasdwaf 0rgk9r8f
Answer:
18 x 421 = 7578
Step-by-step explanation:
421 x 18 = 7578
Solve for b: 3ab = -7
Answers
Since we are solving for b, you need to get it by itself. So you would divide both sides by 3a. That would leave b= -7/3a.
Hope this helps!!
If 247 players separated into 13 equal teams, how many players will be on each team?
Answers
Find the value of |-9 + 1| - 4(4).
-36
-6
-8
16
I will make you brainlliest and give you some points.
Answers
|-9 + 1| - 4(4)
|-9 + 1| = |-8| = 8
4(4) = 4x4 = 16
Now you have 8-16 = -8
The answer is -8
what is the y-intercept
Answers
Answer: D. (0, 1)
Step-by-step explanation: y - intercept is when x = 0. Anything to the power of 0 is 1. So, it would be D. (0, 1)
in this picture lines AB and CD are parallel. Find the measures of the following angles. Explain your reasoning.
Answers
Answer/Step-by-step explanation:
1. <ABC and <BCD are alternate interior angles. Alternate interior angles are equal, therefore, since m<ABC = 38°, then m<BCD = 38°
2. m<ECF = m<BCD (corresponding angles)
m<ECF = 38° (substitution)
3. m<DCF + m<ECF = 180° (linear pair)
m<DCF + 38° = 180° (substitution)
m<DCF = 180° - 38° (Subtraction property of equality)
m<DCF = 142°
The measure of the following angles are as follows;
∠BCD = 38°
∠ECF = 38°
∠DCF = 142°
Angles form when a transversal cut parallel linesWhen a transversal line cut across parallel lines, the angles form include corresponding angles, alternate angles etc.
Therefore,
∠BCD = 38 degrees(alternate angles)
∠ECF = 38 degrees(corresponding angles)
∠DCF = 180 - 38 = 142 degrees(angles on a straight line)
learn more on angles here: https://brainly.com/question/18346402
#SPJ2
which expression can be used to solve 3/5 divided by 7/10?
Answers
Answer:
C
Step-by-step explanation:
Keep Change Flip
Keep the first; change divided by multiply; then flip the last
Question 9
An isosceles triangle and a square are shown below. If the perimeter of the triangle is 27 more than the
perimeter of the square, find the value of x.
Answers
Answer:
x = 9
Step-by-step explanation:
equation:
3x + 3x + x = x + x + x + x + 27
simplify:
7x = 4x + 27
3x = 27
x = 9
Factor each of the following polynomials completely
1. 4x + 8
2.9x² - 25
3.x² + 4x + 4
Answers
Answer:
ok:
Step-by-step explanation:
1. 4(x+2)
2. (3x + 5)(3x - 5)
3. [tex](x+2)^2[/tex]
Answer:
1. 4(x+2)
2. (3x+5)(3x-5)
3. (x+2)(x+2)
Step-by-step explanation:
9
2 points
Item 9 is unpinned. Click to pin.
Fill in the blanks by creating the line perpendicular to
y
=
1
3
x
−
3
y=
3
1
x−3 that goes through (-1, -4) in slope intercept form.
FOR YOUR ANSWER, ONLY TYPE NUMBERS.
y =
Question Blank
x -
Question Blank
Answers
Answer: uhh
Step-by-step explanation:
I really don’t know how to do it.
Which don’t lie??????????!!!!!
Answers
Answer:
I think its -12. If you apply y2-y1/ x2-x1 to the equation.
Answer:
i belive that it might be c
Step-by-step explanation:
which is -12
If Syn spends 15 minutes running, he burns 200 calories. How long will it take Syn to burn 150 calories?
Answers
Answer:
11 minutes and 15 seconds (11.25 minutes/ 11 and 1/4)
Step-by-step explanation:
create the corresponding ratio by dividing 200 by 15, 200 calories per 15 minutes. Which equates to 40 calories every three minutes which means 40/3 or 13 1/3 calories every minute. You can verify this by multiplying 15 and 40/3 to get 200 again.
The last step is to divide the calories burned by the corresponding ratio (40/3)
150/(40/3) = 11.25
and .25 or 1/4 of 60 seconds(in a minute) is 15 since 60/4 = 15.
This type of triangle always has two congruent legs and two congruent
base angles. *
Answers
Answer:
Isosceles is correct........
Answer:
isosceles triangle
Step-by-step explanation:
Please help and thank you for helping me out
Answers
Step-by-step explanation:
1. d=30
2. b=8
3. n=-7
5. v=17
6.x=-13
7. b=48
When rounded to the hundreds place, which of the numbers below round to 456,700?
A) 456,605
B) 456,739
C) 456,798
D) 456,698
E) 45,673
Answers
Answer:
If you can only pick one option I'd choose D.)
Step-by-step explanation:
Option D is only two numbers away from 456,700
The second closest number would be option B.)
Answer:
[tex]D) . \: 456,698 = 456,700 \: to \: the \: hundreds \: place.[/tex]
Help!!
Find the difference between and 8/15 and-2/3. Show all calculations in your final answer.
Answers
Answer:
-2/15
Step-by-step explanation:
8/15-2/3
8/15-10/15
-2/15
Common Denominator
Which explains how you round 212.809 to the nearest hundredth?
Answers
Answer:
212.81
Step-by-step explanation:
The Hundredth is the Underlined number:
212.8 0 9. 0 is in the Hundreths place so round either up or down. In this case we round up sence 9 is bigger then 5. So you would have a new number of 212.81. Hope This Helps! Rate Brainiest!
-Aslina
I need help solving these problems.
Answers
How do I plot the coordinates (2,-4)
Answers
Answer:
the first number is the x axis and the second is the y axis so first find the x axis and plot the first number on there then do the same to the y.
Step-by-step explanation:
Whats is the answer of 1x3x4x6+1
Answers
Answer:
73
Step-by-step explanation:
Answer:73
Step-by-step explanation:
ill mark brainllest if right
Answers
Answer:
The most sense-making answer according to my calculation is B
Step-by-step explanation:
Pls consider marking my answer as Brainliest! It would mean a lot!
4. Determine the value of x.
Answers
Answer:
x=16
Step-by-step explanation:
(16*3)-2
48-2
46
134+46=180
what is x and y equal to if x divided by y = 6
Answers
Answer:
x=12 a and y=2
Step-by-step explanation:
Think about the expression (x-8)(x+4)
Answers
Answer:
x*x +4*x-8*x -8*4
x^2+4x-8x-32
x^2-4x-32
what is
5y+3=4y+8=146
Answers
Answer: y=15
Step-by-step explanation:
Solution for (5y+3)+(4y+8)=146 equation:
Simplifying
(5y + 3) + (4y + 8) = 146
Reorder the terms:
(3 + 5y) + (4y + 8) = 146
Remove parenthesis around (3 + 5y)
3 + 5y + (4y + 8) = 146
Reorder the terms:
3 + 5y + (8 + 4y) = 146
Remove parenthesis around (8 + 4y)
3 + 5y + 8 + 4y = 146
Reorder the terms:
3 + 8 + 5y + 4y = 146
Combine like terms: 3 + 8 = 11
11 + 5y + 4y = 146
Combine like terms: 5y + 4y = 9y
11 + 9y = 146
Solving
11 + 9y = 146
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-11' to each side of the equation.
11 + -11 + 9y = 146 + -11
Combine like terms: 11 + -11 = 0
0 + 9y = 146 + -11
9y = 146 + -11
Combine like terms: 146 + -11 = 135
9y = 135
Divide each side by '9'.
y = 15
What’s the answer pls answer fast
Answers
181-28= 153
So 181 would be your answer.