solve the system by substitution y=x-8 y=2x-14
Answer:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(6,-2)
Equation Form:
x=6,y=-2
Step-by-step explanation:
The value of x is 6 and y is -2.
What is Substitution Method?The algebraic approach to solving simultaneous linear equations is known as substitution method. The value of one variable from one equation is substituted in the second equation in this procedure, as the name implies.
When a variable (or set of letters) in an algebraic statement is substituted, its numerical value is used instead.
Given:
y=x-8..................(1)
y=2x-14.................(2)
Substitute the value of y from equation (1) to equation (2), we get
x-8 = 2x- 14
2x - x = -8 + 14
x = 6
and, y= x-8
y= 6-8
y= -2.
Hence, the value of x is 6 and y is -2.
Learn more about Substitution Method here:
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The volume of a cube 512 cubic inches. What is the length of the cube?
Answer:
I believe it is 8in
Step-by-step explanation:
someone correct me if I'm wrong
what percent of a is b
Answer:
I didn't receive enough information about this, but I hope this helps?
Step-by-step explanation:
A 50%?
B 50%?
This problem needs more information. :3
Which of the following is NOT a solution to the system of inequalities?
1. (0, 4)
2. (1, 2)
3. (2, 1)
4. (1, 5)
Answer:
3. (2, 1)
Step-by-step explanation:
The solutions are the points located inside the shaded region. The only point not located in that region is the point (2, 1). Therefore, (2, 1) is not a solution to the system of inequalities.
A ladder rests 22 feet up the side of a building. If the base of the ladder is 20 feet away from the building, how tall is the ladder to the nearest hundredth?
Answer:
Length of ladder =L =15
Distance from wall = D =9
Height on wall = H =??
Pythagoras equation L*L = D*D + H*H
15×15= (9×9) + H×H
225-81 = 144 =HxH
H= 12 feet.
I am right or wrong
please check
What is the absolute value of -9?
Answer:
9
Step-by-step explanation:
Absolute value means the distance from 0 on a number line, and -9 is 9 spots away from 0
Answer:
9
Step-by-step explanation:
Absolute value just means the positive value of the number
Tell which number is greater.
1/3, 30%
Answer:
They are equal.
Step-by-step explanation:
In my opinion 1/3 is grater because three 1/3's makes a whole. 30% three times is only 90% of the whole.
====MATH QUESTION====Extra points
Which of the following represents a non-linear equation?
A. y = 3x + 3
B. y = -3x
C. y = 1/3x + 3
D. y = 3/x
TIMED PLEASE HELP!!!!
Answer:
D
Step-by-step explanation:
You burn 5 calories each minute you bike. What integer represents the change in your calories
after you bike for 30 minutes?Immersive Reader
Answer:
150
Step-by-step explanation:
I will give brainliest to who answers this. Please answer quick
Answer:
Im pretty sure it would just be g= -p+15
Step-by-step explanation:
I really hope this helps, if not I am so sorry
Answer:
G= 1/6p -15
Step-by-step explanation:
Let's solve for g.
p=6g+90
Step 1: Flip the equation.
6g+90=p
Step 2: Add -90 to both sides.
6g+90+−90=p+−90
6g=p-90
Step 3: Divide both sides by 6.
6g/6 = p−90/6g
=1/6p−15
Can someone explain how to work this out please ?
Answer:
x=4
Step-by-step explanation:
f(x) = (x-2)^5 +3
Let f(x) = 35
35 = (x-2)^5 +3
Subtract 3 from each side
35-3 = (x-2)^5 +3-3
32 = (x-2)^5
Take the fifth root of each side
32 ^ (1/5) = (x-2)^5^ 1/5
2 = x-2
Add 2 to each side
2 +2 = x-2+2
4 =x
please help . me . i will even help . you mark you brainliest
A = Not sure
B= 12.0
Hope I helped
I’ve tried and none my answers match the choices
Answer:-13/3
Step-by-step explanation:
Find the lcm of 5m^7+ 35m^6+50m^5 And -20m^5-80m^4+100^3
Answer:
LCM of both polynomials=[tex]\mathbf{5m^3}[/tex]
Step-by-step explanation:
Least Common Multiple
We are given the polynomials
[tex]5m^7+ 35m^6+50m^5[/tex]
[tex]-20m^5-80m^4+100m^3[/tex]
Find the common factors of each polynomial, first the coefficients:
5 = 5
35 = 5*7
50 = 5*5*2
The common factor with the least exponent; 5
Now for the variables:
[tex]m^7, m^6, m^5[/tex]
The common factor with the least exponent; m^5
LCM of [tex]5m^7+ 35m^6+50m^5: 5m^5[/tex]
Similarly:
20 = 2*2*5
80=2*2*2*2*5
100 = 2*2*5*5
Common factor of the coefficients: 2*2*5=20
Common factor of variables: [tex]m^3[/tex]
LCM of [tex]-20m^5-80m^4+100m^3 = 20m^3[/tex]
LCM of both polynomials=[tex]\mathbf{5m^3}[/tex]
a porcupine has a mass of 27 kg. A.
cat has a mass of 6,300 g. Which
animal has the greater mass?
Answer:
porcupine
Step-by-step explanation:
6300g = 6.3 kg
Step-by-step explanation:
the porcupine has more mass
9. The hypotenuse of a 45°-45°-90° triangle is 5 sqrt 6. Find the length of one leg of the right triangle.
Answer:
5 ✓ 3
Step-by-step explanation:
using Pythagoras Theory
(5 ✓ 6 )2 =, 2 x square side
square leg length= 150/ 2=, 75
length =5 ✓ 3
A: x/8=3/4
B: 2/5=x/40
Answer:
A.)x=6
B.)x=16
did u mean to solve it or do something else if this is not the way u mean i can do another way if u like
Please help im stuck
Help pleaseeeeeeeeee
Answer:
The value for X is 25
Step-by-step explanation:
I hope this helps you out!
You roll a dice twice.
Find the probability of getting 3 in first throw and 5 in second throw.
Answer:
1/6
Step-by-step explanation:
there are 6 faces on a dice so there's a 1 in 6 chance that you would roll a 3 on your second go there is still only a 1 out of 6 chance of getting a 5 because there is still 6 numbers you could roll on.
hope this helped
1. what is the equation of the line that passes through the points (0,7) and (3,19)
a) y=3x+2
b) y=4x+7
c) y= -4+7
2. a line has a gradient of -4/5 and passes through the point (30,24). find the equation of the line.
Answer:
the answer for first question is b
Need help plz!!!!!!!!!
Answer:
x = 35
Step-by-step explanation:
[tex]40 + 2x + 2x = 180[/tex]
Subtract 40 on both sides.
[tex]2x + 2x = 140[/tex]
[tex]4x = 140[/tex]
Divide with 4 on both sides.
[tex]x = 35[/tex]
Will mark brainliest
Solve each system by elimination. Show work for answer
4x+9y=5
-4x +7y=11
Answer:
adding both equations
4x+9y=5
-4x+7y=11
+ + =+
________
0 +16y=16
y=1
putting the value of y in first eqn
4x+9×1=5
4x=5-9
4x=-4
x=-1
so the x is -1 and y is 1
By what percent did
the Howard family's
water bill decrease from
June to July? June $110.00, July $50.00
Temperature freezes at 0°C. Which of the following temperatures is below freezing?
16-2k=14. what is the value of k
Answer:
k = 1
Step-by-step explanation:
16 - 2k = 14
- 16 - 16
-2k = -2
-2 -2
k = 1
The sketch shows two parallel lines cut by a transversal. Which pair of angles are alternate interior angles?
A) Angle 1 and angle 4
B) Angle 5 and angle 4
C) Angle 6 and angle 4
D) Angle 8 and angle 4
Answer:
b.angle 5 and angle 4
Step-by-step explanation:
b.angle 5 and angle 4
Answer:
Step-by-step explanation:
Help me help me help me help me help me help me help me
Answer:
C. and A.
Step-by-step explanation:
1/6 is a positive number so that is automatically greater than -0.33 and 0.3 is It's like, the bigger the number next to the negative sign, the MORE NEGATIVE it is, making it SMALLER.
Reward for answering question correctly:
So am I gonna get brainliest?
Hi it's Mia! '^' Give the other person brainliest, They worked hard to get the answer you needed! Have a wonderful day! :)
wich multiple of 7 is greater than 45 and less than 50
Answer:
49
Step-by-step explanation:
7*7=49