Answers
Answer:
Step-by-step explanation:
Question 1
System of equations is,
y = -6x -------(1)
y = -4x - 2 ---------(2)
Substitute the value of y from equation (1) to equation (2)
-6x = -4x - 2
-6x + 4x = -2
-2x = -2
x = 1
From equation (1)
y = -6(1)
y = -6
Question (2)
System of equations is,
-y = x --------(1)
3x + 5y = 20 ---------(2)
Substitute the value of x from equation (1) to equation (2)
3(-y) + 5y = 20
-3y + 5y = 20
2y = 20
y = 10
From equation (1)
-y = x
x = -10
Question (3)
System of the equations is,
y = -2x - 7 --------(1)
9x - 10y = 12 ----------(2)
Substitute the value of y from equation (1) to equation (2)
9x - 10(-2x - 7) = 12
9x + 20x + 70 = 12
29x = 12 - 70
29x = -58
x = -2
From equation (1)
y = -2(-2) - 7
y = 4 - 7
y = -3
Related Questions
How do you find the mean, median, and mode of a set of numbers?
Answers
Median = Middle Number, if theres even amount, subtract between two middle numbers
Mode = Number most frequent, if no number repeats, theres no mode
Answer:
Mean is add all the numbers then divide by the amount of numbers
Median is order the set of numbers, the median is the middle number
Mode is the most moon number
Also there is Range which is the difference between the highest number and the lowest number
Hope this helps:)
Step-by-step explanation:
What is the slope of (-4,3) and (-3,1)
Answers
same thing just in a dec and frac
more free brain pointssssss if u can answer the question 3+90000000
Answers
Answer:
253892639292639264638 yw
Abu solved 231 multiplication problems. Later, he also solved 131 divison problems. How many more mutiplication problems than divison problems did Abu solve?
Answers
Anyone know what the answer is? I'd appreciate it if someone could help because im stuck
Answers
Answer:
100
Step-by-step explanation:
Isosceles triangle have 2 equal angles. Therefore the second angle in the triangle will also be 25.
Since the sum of angles in a triangle is 180.
180-(25x2) will give you the last angle in one of the triangles.
The other angle is identical so the angle at the top of the other triangle will also be 130.
The sum of angles in a circle is 360.
Therefore, angle x = 360-(130x2)
X= 100
You are purchasing paint and paintbrushes
for an art project. Tubes of paint cost $6 each
and paintbrushes cost $8 each. You plan
on spending $60 and purchasing a total of
9 items. Which linear system best represents
the situation?
Answers
Answer:
(d) x + y = 9
6x + 8y = 60
Step-by-step explanation:
NEED HELP LOTS OF POINTS!!! Diego had $21.32 and gave $9.50 to Elena. How much did he have left?
Answers
Answer:
11.18
Step by Step Explanation:
Subtract 9.5 from 21.23
Write an equation for (-1,-2),(-3,-4)
Answers
Answer:
y=x+1
Step-by-step explanation:
First find the slope by subtracting the y values from both points and dividing it by the subtraction of the x values from both points:
-4--2/ -3--1= -2/-2= 1
so the slope is 1
Now find the y-intercept by plugging in the x and y from one of the points into the equation y=x+b
-3=-4+b
1=b
now plug the slope and y intercept in:
y=x+1
hope this helps :D
pls answer asap
its due tomorrow
Answers
Answer:
[tex]\frac{19}{14} x+\frac{97}{56}[/tex]
whoever answers right gets brainliest
Answers
Answer:
37
Step-by-step explanation:
Split the arrow into a rectangle and triangle. The area of the rectangle is 7x4=28. The area of the triangle is 6*3/2=9. 28+9=37
can someone help me with this please?
Answers
Answer:
y=70°
z= 60°
w= 70°
Step-by-step explanation:
Since the two triangles are similar, we know that all of the corresponding angles must be the same. On the triangle on the left, we can see that the angle formed between sides AB and AC is 60°. This means that the same angle is formed at Z, which is in the same location on the triangle to the right. From there, we can find the missing angle, W, from the difference of 180°.
180°-50°-60°=70°.
The same way we found Z, we can also find Y, since it has to be the same as W.
|16|-|-5| what is the answer
Answers
Answer:
11
Step-by-step explanation:
the little bars mean absolute value and the absolute value of -5 is 5
16-5=11
Solve 45x - 56 > 9x + 25 where x is a real number
Answers
Answer:
x = >9/7
Step-by-step explanation:
PLZ HELP LIKE NOWWWW
Answers
What is help needed on?
Help meeeeeeeeeeeeee plzzzzzzzzzz
Answers
Answer:
Step-by-step explanation:
school is to much sometime's :c
Which ordered pair is a solution to the following inequality? Select all that apply. y > 7x −3
A. (2, 12)
B. (-3, -15)
C. (0, -3)
D. (1, 5)
Answers
a 2 12
la respuesta
a (2 212
fellow brainly users, please don't keep scrolling past this question. i desperately need help. help a sister out. ur reward will be glorious. please, please brainly wan kenobi.. u are my only hope
Answers
Answer:
i think it is 5x or x units
Not sure what kind of reward is glorious, but your answer is
Option 3
If I am wrong, let me know and I will redo the math
HELP PLEASE ON THIS PROBLEM! LOT OF POINTS!!!!
Select all the proportional relationships.
Multiple select question.
A)
(Picture Below)
B) A train is traveling at a constant speed of 60 miles per hour. The number of hours the train has been traveling is t. The number of miles the train has traveled is d.
C)
The relationship is represented by this table:
(Picture Below)
D) y=3x , where x and y are both positive numbers.
E) y=1x
Answers
Answer:
A, C, D, and E
Step-by-step explanation:
They all have a constant rate.
plz help I need answers as fast as possible
Answers
Answer:
Step-by-step explanation:
a). Set of vowels in English alphabets:
{a, e, i, o, u}
b). S = {x: x is a positive odd number less than 10}
S = {1, 3, 5, 7, 9}
c). T = {letters in the word "WOOD"}
T = {W, O, O, D}
Aniyah scored 95% on her math test. If she answered 19 questions correctly, how many total questions were on the test?
Answers
Answer:
20
Step-by-step explanation:
19/0.95=20
Can someone plzzz help me
Answers
Shelly is using a vase shaped like a triangular prism to display a dozen roses. The volume
of the vase is 154 cubic inches with dimensions shown.
h
7 in.
4 in.
What is the height, h, of the vase?
Answers
Answer:
11 inchesStep-by-step explanation:
Assume the base is right triangle.
The volume:
V = bh = 1/2abhSubstitute values and solve for h:
154 = 1/2(7)(4)h154 = 14hh = 154/14h = 11 inchesMatthew is training to participate in a half marathon. Each week, Matthew increases the number of miles he runs in the previous week by the same percent. The table below shows the number of miles he runs in weeks 1 and 2.
Week Number of Miles Run
1 12.5
2 15.5Complete the sentence. Do not round your answer.
Matthew runs
miles in week 3.
Answers
Answer:
Step-by-step explanation:
3/12.5 = x/15.5 so x is 3.72
Then 3.72 + 15.5 = 19.22
Answer:
answering so they can get brainliest ^^
Step-by-step explanation:
Help please please please
Answers
Answer:
surface are of cylinder= 2 pi r²+2pi r h
s.a= 2 pi r (r+h)
s.a=2×3.14×5(5+30)
s.a= 1099 in²
Solve this system of linear equations. Separate the x- and y- values with a comma.
17x = 43 - 15y
8x = -68 + 15y
Answers
Answer:
(-1,4)
Step-by-step explanation:
Using elimination, add the two equations to get rid of the y variable.
17x = 43 - 15y
+8x = -68 + 15y
=25x = -25
x = -1
Now plug in -1 for x in any of the equations.
17(-1) = 43 - 15y
-17 = 43 - 15y
-60 = -15y
y = 4
Estimate a 15 tip on a dinner bill of 71.68, By first rounding the bill amount to the nearest ten dollars
Answers
Answer:
round the bill up. 15% of that is 10.80
Step-by-step explanation:
What is 3052.08 rounded to the nerarest whole number
Answers
Hi there!
What we have to do...
Round terms:
to have no decimal points means whole number.
3052.08=3052
Nearest whole number: 3052
(- 4, 2) (3, - 5) (7, - 9) (8, - 10) What is the domain of the set of ordered pairs above?
Answers
Answer: 3 [tex]\leq[/tex] x [tex]\leq[/tex] 8
3 is the smallest x value, and 8 is the largest.
What’s the approximate value?
Answers
Answer:
D-24.2
Step-by-step explanation:
I'm not sure though
What is the slope (1,3) and (5,4)
Answers
Answer:
1/4
Step-by-step explanation:
y2-y1
--------
x2-x1
(x , y)
(1 , 3)
(5 , 4)
4-3=1
--------
5-1=4