Answer:
Solving Simple Equations
When solving a simple equation, think of the equation as a balance, with the equals sign (=) being the fulcrum or center. Thus, if you do something to one side of the equation, you must do the same thing to the other side. Doing the same thing to both sides of the equation (say, adding 3 to each side) keeps the equation balanced.
Solving an equation is the process of getting what you're looking for, or solving for, on one side of the equals sign and everything else on the other side. You're really sorting information. If you're solving for x, you must getx on one side by itself.
Step-by-step explanation:
Addition and subtraction equations
Some equations involve only addition and/or subtraction.
Example 1
Solve for x.
x + 8 = 12
To solve the equation x + 8 = 12, you must get x by itself on one side. Therefore, subtract 8 from both sides equation
X+8=12
- 8 - 8
_____ _____
X = 4
To check your answer, simply plug your answer into the equation:
X+8=12
(4)+8=12
12=12
Find the x-coordinate of the vertex, y-coordinate of the vertex, and the x-intercepts.
! pls help, I’ll mark as brainliest !
Answer:
X=-1
Y=-9
Step-by-step explanation:
x^2+2x-8
x^2+2x +1 =8+1
(x+1)-9
x coordinate of vertex x=-1, y coordinate of vertex y=-9 and x=2 and x=-4 are the x intercepts.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
The given equation is y=x²+2x-8
then the x-coordinate of the vertex can be found using
x=-b/2a
x=-2/2=-1
x=-1 is the x coordinate of vertex.
substitute this value into f(x) for y coordinate
y=(-1)²+2(-1)-8
y=1-2-8=-9
y coordinate of vertex y=-9.
y intercept is -8.
To find the x intercepts x²+2x-8=0
x²+4x-2x-8=0
x(x+4)-2(x+4)=0
(x-2)(x+4)=0
x=2 and x=-4 are the x intercepts.
Hence, x coordinate of vertex x=-1, y coordinate of vertex y=-9 and x=2 and x=-4 are the x intercepts.
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Answer this for 15 points and Brainliest
Answer:
y=3x+18
Step-by-step explanation:
Since slope-intercept form is y=mx+b, we first need to find the slope.
m=y2-y1/x2-x1
m=0-(-9)/-6-(-9)
m=9/3=3
Next we need to find b, or the y-intercept
to do that we plug in numbers to what we already have.
y=3x+b
0=-18+b
b=18
Now we put it all together.
y=3x+18Help me plz
A recipe for turkey meatballs calls for 1 1/4 lbs how many times can you make the recipe with him or ground turkey you have
Answer:
Is this cooking because if it is why would we need to answer that just ask another adult because this app is for home work or school work not for cooking
A regular pentagon and rectangle have the same perimeter. The length of the rectangle and the side of the pentagon are equal. The width is 10 more than the length. Write an equation that describes the scenario. pentagon's perimeter: rectangle's perimeter: scenario's equation:
Answer:
Pentagon perimeter 5l
Rectangle perimeter 2l +2(l + 10
Scenario’s equation 5l=2l +2(l + 10)
Step-by-step explanation:trust me
The equation that describes the pentagon perimeter is 5l
Where l is the sides of the pentagon.
The equation that describes the rectangular perimeter is 4l + 20
Where l is the length of the rectangle
What is a rectangle?A rectangle is a two-dimensional shape where the length and width are different.
The area of a rectangle is given as:
Area = Length x width
We have,
Regular pentagon:
A regular pentagon has 5 sides.
Side = l
Rectangle:
Length = l
Width = 10 + l
Now,
The perimeter of a pentagon = 5 side
The perimeter of a rectangle = 2 (l + w)
The perimeter of the pentagon.
= l + l + l + l + l
= 5l
The perimeter of the rectangle.
= 2 (l + w)
= 2 (l + 10 + l)
= 2 (2l + 10)
= 4l + 20
Thus,
The equation that describes the pentagon perimeter is 5l
Where l is the sides of the pentagon.
The equation that describes the rectangular perimeter is 4l + 20
Where l is the length of the rectangle
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Which number sentence is true?
A.
B.
C.
D.
Answer:
C
Step-by-step explanation:
i took that same test/quiz thing
The true relation is √58>6.85. Then option B is correct.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
Check all the expressions to find the true relation.
A. √96 > 10
√96 = 9.79 Not true
B. √58 > 6.85
√58= 7.61 True
C. |-4| > √25
√25 = 5 Not true
D. 8.45 x 10² > 845
Not true because 845 = 845.
Hence, option B is correct.
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Carol makes $30 on Friday at work. Her paycheck is $75.
What percent of her check comes from Friday?
1. Which situation does NOT represent a functional relationship?
[A] Dave is a construction supervisor for several job sites. When Dave secures a contract for an additional job, he must hire 5 new construction workers to cover that Jobsite. The number of construction workers Dave oversees is related to the number of job sites under Dave's supervision.
[B] Betsy opened an account with $2,500 she had saved from a summer job. During the school year, she withdrew $200 each month from the account. The amount of money in Betsy's account is related to the number of months since Betsy opened the account.
[C] As a zoo veterinarian, Wanda is in charge of ordering vitamins for the spider monkeys. To be healthy, each monkey receives 3 vitamins. The number of vitamins that Wanda must order to have healthy spider monkeys is related to how many sider monkeys are kept at the zoo.
[D] Once a week, Rockwell participates in a soccer exercise. Based on Rockwell's performance, the soccer coach assigns two scores to Rockwell's evaluation form. How well Rockwell did on his performance as indicated by his scores is related to the number of weeks since Rockwell started practicing.
__________________________________________________________________
2. Determine A ÷ B, where A = 62x – 100 and B = 2x – 3.
[A] [tex]\frac{1}{31}[/tex]
[B] 60x - 97
[C] 31 - [tex]\frac{7}{2x - 3}[/tex]
[D] [tex]\frac{7}{2x - 3}[/tex]
Answer:
1. D2. CStep-by-step explanation:
1. .....................................................................................................
A. This is a functional relationship as the number of workers depend on the number of job sites.
y = 5xB. This is a functional relationship as the amount of money is dependent on the number of withdrawals
y = 2500 - 200xC. This is a functional relationship as the number of vitamins depend on the number of monkeys
y = 3xD. This is NOT a functional relationship as the output is a fixed value. The performance and scoring may repeat.
2. .....................................................................................................
GivenA = 62x -100B = 2x - 3To find A/BSolutionA/B =(62x - 100)/(2x - 3) =(31*2x - 31*3 - 7)/(2x - 3) =(31(2x - 3) -7)/(2x - 3) =31 - 7/(2x - 3)Correct option is C.
can someone please do these questions for me
How do you solve this problem?
Answer:
x=-7,y=-2
Step-by-step explanation:
2y=-32-4x
y=-16-2x
7x+(-16-2x)=-51
5x-16=-51
5x=-35
x=-7
<3
Red
Which of the following could be the number shown on the number line?
Answer:
A would be the answer. Let me know if I am wrong.
Step-by-step explanation:
Answer:
i think it is C
brainllest appreciated
Macy eats 33 animal crackers as a snack every day after school. How many animal crackers does she eat
during a 5 day school week?
PLEASE ANSWER THIS ASAP !!!!
Answer:
11
Step-by-step explanation:
sub 7 in for t which gives you 2(7) - 3
14-3 = 11
HELP! will mark branniest answer if right!
Answer:
64 i think
Simple explanation:
find the missing angle of the triangle with two given angles:
add 36 and 84 to get 120
subtract 120 from 180 and you will get 60
subtract 60 from 90 to find one of the angles in the other triangle
so now you have that the other triangle has an angle of 86 and another angle of 30
add 86 and 30 to get 116
subtract 116 from 180 to get the "? angle"
you should get 64
Another possible explanation:
extend the line that contains the degrees 36 and 84
this will make a third, smaller triangle
this triangle has two measure that are easy to find and that is 96 and 54
when you add those together, you get 150
subtract 150 from 180 to get 30
30 degrees is the measure of the smaller angle at the 90 degrees symbol
now add 30 and 86 together to get 116
subtract that from 180 to get 64
What is the slope of the line represented by the equation f(t)=2t−6? The slope is 2 and the y-intercept is −6. The slope is −6 and the y-intercept is 2. The slope is 2 and the y-intercept is 6. The slope is 6 and the y-intercept is 2.
Answer:
A.The slope is 2 and the y-intercept is −6.
Step-by-step explanation:
got it right on the quiz. :)
(hop this helps)
The slope of the line represented by the above equation is:
".2 and the y-intercept is −6." (Option A)
The slope of any line, ray, or line segment in analytic geometry is the ratio of the perpendicular to horizontal distance between any two points on it.
Hence it is correct to state that the slope of the line represented by the above equation [f(t)=2t−6] is: ".2 and the y-intercept is −6."
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—бу – 3 = 3 – бу
No solution
All real numbers
I need the answer quickly!!
Answer:
no solutions
Step-by-step explanation:
-6y-3=3-6y
1. add 6y to both sides:
-6y-3 +6y=3-6y +6y
-3=3
since -3 doesn't equal 3, there are no solutions.
Complete the table and determine whether the data is proportional and explain why
I need help
Answer:
in distance it goes 3,6,9,12,15
Step-by-step explanation:
thats all i know i hope my answer anwsers nyour questionand have a great time and get a lot of A+ ✍✍
Put the following numbers in order from least to greatest. Separate the numbers in your answer with comma's without spaces. 3,-1,1.75,-2,-2.5,2.25,0
(79x - 51y) - (58x + 31y)
Answer:
21x-82y
Step-by-step explanation:
Brian spent a total of $149.97 on three video games. If each game cost the same
amount, write an expression to find how much he spent per game.
. Six less than a number divided by 2 equals 8
Answer:
it would be 22
Step-by-step explanation:
Help me I don’t understand
Answer:
$7.63
Step-by-step explanation:
Katie’s planted tree in her front yard that was 38 inches tall. She measured the height 8 months later and the tree was 74 inches tall.What was the average rate of change for the trees height?
Answer:
5.75 per month
Step-by-step explanation:
Who better I vote Trippie
Answer:
TRIPPIE REDD definitely
Step-by-step explanation:
Answer:
trippie redd dawg
Step-by-step explanation:
can anyone explain this?
Answer:
71v + 72
Step-by-step explanation:
9v-8(10v-9) distribute 8 × 10v, 8×9
9v - 80v+72
71v + 72
iris has 120 songs on her playlist. Each week, she downloads 4 new songs.
write an expression to show the total number of songs on iris's playlist after w weeks.
Answer:
4w+120.
Step-by-step explanation:
She downloads 4 songs for every week which is represented as 4w, and she started with 120 songs which is represented as +120.
Answer:
120 + 4w
Step-by-step explanation:
weeks = w
120 songs plus 4 in w weeks
120 + 4w
Find the measure of the exterior angle.
Answer:
1) 128°
2) 126°
3) 108°
Question one:The square in the corner means 90°. If you add the interior angles of any triangle together, you get 180. in this case, x is in exterior angle, so you subtract it from 180 to get the interior angle.
38 + 90 + (180-x) = 180
38 + 90 + 180 - x = 180
38 + 90 + 180 - 180 - x = 0
38 + 90 + 180 - 180 = x
128 = x
Question two:
again, adding all the interior angles makes 180°. use this to make the equation.
3x + (5x-6) + 90 = 180
3x + 5x - 6 = 90
8x = 96
x = 12.
x isn't the answer the question wants, however. if you look at the drawing, the angle that's supplementary to 5x-6 is the exterior angle. so,
180 - (5x-6) = the answer
180 - 5x + 6 = the answer
substitute x for 12
180 - 60 + 6 = the answer
126 = x
Question three
again, adding all the interior angles together makes 180°.
(a + 10) + 44 + (180-2a) = 180
a + 10 + 44 + 180 - 2a = 180
-a + 234 = 180
234 - 180 = a
54 = a
however, the question is looking for the exterior angle, not a. in this case, the exterior angle is 2a, so just multiply 54 by 2.
x = 108
The temperature was 20 F. It dropped so that the temperature was 0F. ___F represents the change in temperature.
Answer:
-20
Step-by-step explanation:
Can someone pls answer these questions for me I’m stuck
Answer:
a) The triangles are similar, and the ratio of the similar sides are both equal to 1:3. b) the scale factor from triangle abc to def is 3 because if you divide the longer corresponding side length from triangle def by the side of triangle abc, you will get 3. c) x is equal to 7.5 cm. Using the scale factor, you can just multiply 3 by 2.5.
Step-by-step explanation:
a) If you look at the two triangles, you can see that they look similar. Side AB looks similar to side DE, and the side lengths are 1 and 3. Therefore, the scale will be 1:3. b) If you divide the longer corresponding side length from triangle def by the side of triangle abc, you will get 3. c) x is equal to 7.5 cm because the scale factor is 3, which means you have to multiply the smaller side by 3.
Hope you understand!
what is the mood move frozen
If you answer this, i might give you 3 extra points (:
Answer: each necklace will have 4 jade beads and 5 teak beads
Step-by-step explanation: