Answer:
[tex]-2(3x - 4) = -16[/tex] and [tex]20- 15x = 6 - 2(4x + 7)[/tex]
Step-by-step explanation:
Given
[tex]-2(3x - 4) = -16[/tex]
[tex]\frac{1}{2}(10x + 2) = 6[/tex]
[tex]20- 15x = 6 - 2(4x + 7)[/tex]
[tex]\frac{1}{3}(9x - 12) + 6=-10[/tex]
Required
Equations with [tex]x = 4[/tex] as a solution
[tex]-2(3x - 4) = -16[/tex]
Divide both sides by -2
[tex]3x - 4 = 8[/tex]
Add 4 to both sides
[tex]3x - 4 +4= 8+4[/tex]
[tex]3x =12[/tex]
Divide both sides by 3
[tex]x = 4[/tex]
[tex]\frac{1}{2}(10x + 2) = 6[/tex]
Multiply both sides by 2
[tex]10x + 2 = 12[/tex]
Subtract 2 from both sides
[tex]10x + 2 -2= 12-2[/tex]
[tex]10x = 10[/tex]
Divide both sides by 1
[tex]x = 1[/tex]
[tex]20- 15x = 6 - 2(4x + 7)[/tex]
Open bracket
[tex]20 - 15x = 6 - 8x - 14[/tex]
Collect like terms
[tex]8x - 15x = 6 - 14 - 20[/tex]
[tex]-7x = -28[/tex]
Divide both sides by -7
[tex]x = 4[/tex]
[tex]\frac{1}{3}(9x - 12) + 6=-10[/tex]
Subtract 6 from both sides
[tex]\frac{1}{3}(9x - 12) + 6-6=-10-6[/tex]
[tex]\frac{1}{3}(9x - 12) =-16[/tex]
Multiply both sides by 3
[tex]9x - 12 = -48[/tex]
Add 12 to both sides
[tex]9x - 12 +12= -48+12[/tex]
[tex]9x = -36[/tex]
Divide both sides by 4
[tex]x =-4[/tex]
[tex]-2(3x - 4) = -16[/tex] and [tex]20- 15x = 6 - 2(4x + 7)[/tex] have [tex]x = 4[/tex] has a solution
Answer: 1st and 3rd
Step-by-step explanation:
answer correctly for brainlesit pls asap rlly need help!
Answer:
C
Step-by-step explanation:
This is the only option where every x-value only goes to one y-value, which is what has to happen in order for it to be a function.
Which shapes make up this composite figure?
A cylinder and 2 half spheres.
a cylinder and a cone
a cylinder and two cones
a half sphere, a cylinder, and a cone
a sphere and a cylinder
Answer:
A cylinder and 2 half spheres
Step-by-step explanation:
Using my eyes, I see 1 cylinder and 2 half spheres at the ends of the cylinder.
The shapes that combined to form the comppsite figure are a Cylinder and two half Sphere.
Option A) A cylinder and 2 half spheres is the correct answer.
What is a cylinder and a hemisphere?A cylinder is simply a 3-dimensional shape having two parallel circular bases joined by a curved surface.
A hemisphere is gotten when a sphere is cut into two equal halves. It is half of a shere.
From the Image, one can see that a cylinder and two hemispheres combined to form the composite figure.
Hence, the shapes that combined to form the comppsite figure are a Cylinder and two half Sphere.
Option A) A cylinder and 2 half spheres is the correct answer.
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Directions: The triangles below are similar. Solve for X. Please show work
Answer:
x = 20
Step-by-step explanation:
Mathematically, when two triangles are similar, the ratio of their corresponding sides are equal
Thus, we have it that;
x/35 = 24/42
x = (35 * 24)/42
x = 20
I need help asap
Jane had $5.00, then spent $3.00. After one week she had earned 12 more dollars, but spent half of the total money she has. How much money does she have left?
also Can someone also please teach me how to make music using this website;
https://musiclab.chromeexperiments.com/Shared-Piano/#J_lgLdlzn
Answer:
$7.00
Step-by-step explanation:
5-3=2
2+12=14
14/2=7
Jane has 7 dollars left.
Find the volume of this square
based pyramid.
5ft
6 fi
Answer:
60ft
Step-by-step explanation:
I am here to help the people. You will never hear from me again, but know this, I will always be there to help strangers on the internet. Have a blessed life, you got this.
X = 60ft
Last week at a gym, 120 people participated in a biking class. The number of people who ran on a treadmill
was 150% of the number of people who participated in a biking class. How many people ran
a treadmill at
the gym last week?
people ran on a treadmill at the gym last week.
Show work ~ Aniya v
Answer:
180
Step-by-step explanation:
This basically means that one and a half of the amount of people that took a biking class ran on the treadmill.
There are two ways to solve
1. [tex]\frac{150*120}{100}[/tex]
2. [tex]120+\frac{120\\}{2}[/tex]
To do the first one:
1. Multiply the values in the numerator
18000/100
2. Divide
180
To do the second one:
1. Divide the fraction
120 + 60
2. Add
180
Choose the expression that represents a quadratic expression.
A.) 6x4 − 5x3 + 3x2 −7x − 8
B.) 5x3 + 3x2 −7x − 8
C.) 2x2 + 3x − 1
D.) 3x − 1
Answer:
C. 2x^2 + 3x - 1
is the answer
Help me please and if you do, I will add you and give you brainliest
Answer: B
Step-by-step explanation:
please help me out, thank you so much whoever does :)))
Answer:
6.5 cm is the answer
What an odd measurement
Answer:
6.5cm
Step-by-step explanation:
pythagoras theorem
h² = o² + a²
11.1² = o² + 9²
123.21 = o² + 81
123.21 - 81 = o²
42.21 = o²
o = 6.5cm
Which ordered pair describes a point that is located 4 units to the left of the origin and 2 units below the x-axis?
Answer:
(-4,2)
Step-by-step explanation:
The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The ordered pair that describes a point that is located 4 units to the left of the origin and 2 units below the x-axis is (-4, -2)
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
The point is located 4 units to the left of the origin and 2 units below the
x-axis.
4 units to the left of the origin.
This means,
x = -4
2 units below the x-axis.
This means,
y = -2
The coordinate in the form of ordered pair is (-4, -2).
Thus,
The ordered pair that describes a point that is located 4 units to the left of the origin and 2 units below the x-axis is (-4, -2)
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find the diameter of the graphed circle.
Solve the equation 2.2x=3
Answer : The answer is 15/11 but you can simply this fraction which makes it to a decimal which would be 1.36 ( 36 is repeating )
pls answerrrrrr<3333
Answer:
[tex](x+6)(x+10)[/tex]
Step-by-step explanation:
Break the expression into groups, [tex]=(x2+6x)+(10x+60)[/tex]
Factor out x from [tex]x2+6x: x(x+6)[/tex]
Factor out 10 from [tex]10x+60: 10(x+6)[/tex]
[tex]=x(x+6)+10(x+6)[/tex]
Zeke earned 23 extra credit points. Sofia earned e fewer extra credit points than Zeke. Write
an expression that shows how many extra credit points Sofia earned.
Answer:
s = 23 - e
Step-by-step explanation:
In this expression, s is equal to the amount of extra credit Sofia earns. She earns e less points than the 23 points Zeke earns.
So, s (Sofia's points) = 23 (Zeke's points) - e (the difference in points).
The expression is s = 23 - e.
Good luck ^^
Can anyone help me with 6? Please
Answer: (2)
Step-by-step explanation: y=18(0.75) 0.75 as a percent is 75%, kind of like what would happen in the graph with the mathematical term Pneumonoultramicroscopicsilicovolcanoconiosis.
Two six-sided number cubes are rolled at the same time. What is the probability that the result will have at least one two in it?
(A)7/36
(B)1/5
(C)11/36
(D)1/6
Answer:
1/6
Step-by-step explanation:
There are 12 numbers in total. There is a 2 on each cube so there are two possible chance. 2/12=1/6 2/2=1 and 12/2=6 therefore 2/12=1/6
The solution is, the probability that the result will have at least one two in it is, 1/6.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
given that,
Two six-sided number cubes are rolled at the same time.
so, we get,
There are 12 numbers in total.
There is a 2 on each cube so there are two possible chance.
2/12=1/6
2/2=1
and 12/2=6
now, we have,
therefore 2/12=1/6.
Hence, The solution is, the probability that the result will have at least one two in it is, 1/6.
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PLEASE HELP MEEEE
A woman is laying on the ground relaxing and looking up at a plane that is passing by. If the plane’s altitude is 30,000 feet and the woman’s eyes are located 13,800 feet away from a point on the ground directly beneath the plane, what is the angle of elevation for the woman’s line of sight to the plane?
Answer:
23,500
Step-by-step explanation:
Solve the equation for x:
2(x+3)−12=18
Answer: X=12
→Hope this helps!←
At which value in the domain does f(x) = 0?
Ty
10
8+
6
4
2
-1
3
-10
--3
.Find -23+57 and 57+-23
PLZ ANSWER WITH FULL EXPLANATION
Answer:-23+57=34 and 57 + -23 =34
|
Step-by-step explanation: −60−50−40−30−20−10 0 10 20 30 40 50 60 70 80
regardless of the way you put it the positive is bigger so that means the you subtract 57 - 23 each time .
Find NK..............
The required value of the NK in the given figure is NK = 12.
What is a chord?In geometry, a chord is a line segment that connects two points on the circumference of a circle. The two endpoints of the chord lie on the circle, and the chord divides the circle into two segments - the major segment and the minor segment.
Here,
From the figure,
Apply Pythagoras' theorem,
KL² = NL² + NK²
15² = 9² + NK²
NK = √144
NK = 12
Thus, the required value of the NK in the given figure is NK = 12.
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What is the M? Will mark brainlist if correct
Which are equal matrices
Answer:
B
Step-by-step explanation:
B= 3 Ccnssssfbhmhmfffffffffffffffffffffffffffffffffffffffff
Classify the following polynomial by the degree and number of terms.
2x3+3x2-5x+20 I will give brainliest for correct answer
Answer:
Number of terms classification: Occasionally a quadrinomial.
Degree classification: 3rd degree
Step-by-step explanation:
There are four terms hence the name, quadrinomial.
The highest exponent is 3, so it is to the third degree
PLEASE HELP ASAPPPP!!!!!!!!
Answer:
slope: 1.25
Part B: The order in which the points are given does not change the value of the slope
Step-by-step explanation:
Part A. Given two points we can find slope using the slope formula
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Given the points ( -6, 1/2) and ( -4,3 )
We plug in the y values and x values (starting with the last point give )
[tex]m=\frac{3-.5}{-4-(-6)} \\3-\frac{1}{2} =2.5\\-4-(-6)=2\\\frac{2.5}{2} =1.25\\[/tex]
so we can conclude that the slope of a line that passes through the points ( -6, 1/2) and ( -4,3 ) is 1.25
Part B. The order in which the points are given does not change the value of the slope
Observe -
* flip the order in which the points are given *
given (-4,3) and (-6,1/2)
we use the same formula
*plug in the y and x values starting with the last point*
[tex]m=\frac{.5-3}{-6-(-4)} \\.5 - 3=-2.5\\-6-(-4)=-2\\\frac{-2.5}{-2} =1.25[/tex]
The slope still equals 1.25 meaning that the order in which the points are given does not matter.
Happy Paws charges $20.00 plus $3.50 per hour to keep a dog during the day. Woof Watchers charges $10.00 plus $4.75 per hour. Complete the equation and solve it to find for how many hours the total cost of the services is equal. Use the variable h to represent the number of hours.
Answer:
8 hours
Step-by-step explanation:
Create an equation that sets the costs equal to each other, where h is the number of hours
3.5h + 20 = 4.75h + 10
Solve for h
3.5h + 20 = 4.75h + 10
20 = 1.25h + 10
10 = 1.25h
8 = h
So, it will take 8 hours for the costs to be equal
Solve 3/8 + n = 7/8 n = ?
Answer:
n = 4/8 or 1/2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
Move all terms not containing n
to the right side of the equation.
Exact Form:
n=12
Decimal Form:
n=0.5
Three fourths divided by nine
Answer:
0.1
Step-by-step explanation:
Divide 3/4 by 9 which will leave you with 0.083 repeated but if you estimate to the closest decimal that will bring you to 0.1 as your final answer.
Nic sells advertising packages for a radio station. The company pays him $150 per week and they also pay him $75 for every package he sells. His friend Asia works for the same radio station but she receives a salary only, which is $1,275 per week. How many packages does Nic need to sell in a week to earn as much as Asia?
Answers are:
A) 14
B) 15
C)16
D)20
which table shows the relationship y=k/x where k is a real number
Answer:
the answer is 1/5 because y/x gives you k
Step-by-step explanation: