If the sum of 5 and x is 20, then the value of x will be 15.
It is given that the sum of 5 and x is 20.
Mathematically, it can be written as:
5 + x = 20
We have to find the value of x.
In order to find the value of x we need to separate the variable and constant.
For this, subtract 5 from both the sides:
5+x-5 = 20-5
5-5 +x = 20-5
Then, solve the operation of subtraction on both the sides of above equation.
0+x = 15 -------(A)
Since, when we add 0 to any quantity, the result will be this quantity itself.
So, 0+x = x -------(B)
From (A) and (B), Sine the left sides of equation (A) and (B) are equal, then the right sides will also be equal.
Equation right sides of (A) and (B). We have:
x = 15
Hence, the value of x is 15.
Learn more about sum of variable and constants here:
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Answer: THE LENGTH OF AB IS 13CM
Step-by-step explanation:
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reply with anything :D
Answer:
anything :D
Step-by-step explanation:
Volunteers at Sams school use some of the student councils savings for a special project.They buy 4 backpacks for $9 each and fill each backpack with paper and pens that cost $5.By how much did the student councils savings change because of this project?
Answer: The student councils savings change by $41.
Step-by-step explanation:
Number of backpacks = 4
Cost of each backpack = $9
Paper and pen costs = $5
Total spending = (Number of backpacks ) x (Cost of each backpack ) + (Cost of paper and pen)
= $ (4 x 9 +5)
= $ 41
Hence, the student councils savings change by $41.
Need help asap
x=4 and y= -9
2xy+15x
Answer:
12
Step-by-step explanation:
2xy+15x
Let x=4 and y= -9
2(-4)(-9) + 15(-4)
Multiply
72 -60
Subtract
12
Answer:
-12
Step-by-step explanation:
2(4)(-9)+15(4) is what it should look like.
Jenny needs to trim some ribbon off of her ballet shoe She has 0.8 foot of ribbon on the shoe and needs to trim 0.2 of the amount how much ribbon should Jenny trim?
0.016 foot
0.16 foot
1.6 feet
16 feet
Answer:
0.16
Hope this Helps!
Answer:
0.16 is your answer hope this helps
Step-by-step explanation:
8(94) = 8(____) + 8(4)
Answer:
90
Step-by-step explanation:
8(94)
= 8(90 + 4) Use distributive property
= 8(90) + 8(4)
Hope this helps!
Answer:
90
Explanation:
8(90) + 8(4) = 8(94) just add the numbers in the parentheses
In expanded form
8(90) = 720 8(4) = 32
720 + 32 = 752 to check
752 ÷ 8 = 94
please HELPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
y=1/2x-1 1/2 = Proper fraction
y=1/2x-3/2= improper fraction
y=x-2 = integer
Step-by-step explanation:
Which box plot has the most variability A,B,C,D
En la última cena de los campamentos los monitores piensan servir dos perritos calientes para cada uno de los 35 niños las salchichas se venden en paquetes de 5 y los panecillos en paquetes de 6 ¿cuantos paquetes de salchichas y de panecillos tiene que comprar?
Answer:
is this question in Spanish
Please Help Me!!!! ;)
Answer:
Value of x: 110
Step-by-step explanation:
5+5=10
120-10=110
Convert the following repeating decimal to a fraction in simplest form.
.78
Answer:
78/100
Step-by-step explanation:
Since .78 is in the hundredths place just move the decimal two places to the right then put it over 100. But idk if you mistyped this because .78 is not a repeating decimal
Answer:
6/9
Step-by-step explanation:
Change 0.7878 to a fraction.
Let n = 0.7878... Multiply both sides by 100 (by 100 when there are two repeating decimal digits)
100n = 78.7878... Subtract n from 100n.
99n = 78 Divide both sides by 99
n = 78/99 but n is 0.7878..., so
0.7878... = 78/99
Similarly with 0.66...
Let n = 0.66... Multiply both sides by 10 (by 10 when there is only one repeating digit)
10n = 6.66... Subtract n from 10n.
9n = 6 Divide both sides by 9.
n = 6/9 but n is 0.66..., so
0.66... = 6/9
Debbie Redden has a 25%-off coupon and is purchasing a
2.5 gallon can of primer sealer paint that has a regular price
of $39.99.
a. What is the markdown?
b. What is the sale price?
c. What is the sale price using the percent paid method?
A line goes through the point (6,-2) and has a slope of
-3
What is the value of a if the point (a, 7) lies on the line?
a
Dome
Answer:
Step-by-step explanation:
eq. of line is y-(-2)=-3(x-6)
y+2=-3x+18
y=-3x+18-2
y=-3x+16
∵(a,7) lies on it.
7=-a+16
a=16-7=9
a=9
find the inverse of f(x)=x^3-8
Answer:
Step-by-step explanation:
Horizontal and parallel lines e and f are cut by transversals c and d. All angles are described clockwise, from uppercase left. The intersection of lines d and c form angles: 1, 2, 4, 3. The intersection of lines f and c form angles 5, 6, 8, 7. The intersection of lines e and d form angles 9, 10, 12, 11. The intersection of lines f and d form angles 13, 14, 16, 15.
In the diagram, m∠3 = 120° and m∠12 = 80°. Which angle measures are correct? Check all that apply.
m∠1 = 60°
m∠13 = 80°
m∠6 = 80°
m∠5 = 60°
m∠10 = 120°
m∠ 14 = 100°
Answer:
The correct answers are A, B, D, and F
Step-by-step explanation:
I just took the test ( i hope this helps!!! )
Answer:
a, b, d, f
Step-by-step explanation:
CORRECT ANSWER WILL GET BRAINLIEST!!!!
Answer:B
Step-by-step explanation: Divide 88 to 11 And You Got Your Answer.
Answer: The correct answer is B. 11x = 88, Divide both sides by 11. Bianca had $8
Step-by-step explanation:
Someone help me please ill mark brainliest
Answer:
B?
Step-by-step explanation:
A B and C are the same
Identify the parent function.
y
LO
-5
5
-5
I need help pleaseeeeee
Answer:
c
Step-by-step explanation: because if you go up 5 then move 4 left you will get to the number coresponding it c
answer THE ANSWER IS C, 0 TO 1750
Step-by-step explanation:
Which expression is equivalent to (3x2-6) – (5x2 - 7x+5)-(9x + 3)?
Answer:
It equals -2
Step-by-step explanation:
HELP!
A stack of lumber is 6 feet wide, 4 feet high, and 2 feet long.
What is the volume of the stack?
I need help pls!!! Eeeeeek
Answer:
first
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
If f(x) = x2 – 3, find f (5)
Answer:
5*2 - 3
10-3
7
Step-by-step explanation:
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Given the perimeter of a rectangle and either the length or width, find the unknown measurement using the appropriate formula.
The perimeter is 70ft . and the width is 16ft .
Answer:
Step-by-step explanation:
Givens
P = 2*L + 2*W
P = 70
w = 16
Solution
70 = 2L + 2*16
70 = 2L + 32
70-32 = 2L
38 = 2L
38/2 = 2L/2
L = 19
PLEASE HELP IM CHECKING MY ANSWERSSS!!!
Can somebody plz help?
Answer: 40/20
Step-by-step explanation: 8/10 x 5/2 = 40/20 or you can say 2, you got to flip the equation
If
[tex] \cos(330) = \frac{ \sqrt{3} }{2} [/tex]
Prove that:
[tex] \tan(165) = \sqrt{3} - 2[/tex]
Please solve this question.
Answer: see attachment
Step-by-step explanation:
Given: cos 330 = √3/2
Prove that tan (165) = √3 - 2
Step-by-step explanation:
cos330° = cos(360° - 30°) = cos(2π - 30°)
Using, cos(2π - x) = cosx, x < 90°
=> cos(2π - 30°)
=> cos(30°)
=> √3/2 , proved
(ii): tan(165°) = tan(180° - 15°) = tan(π - 15°)
Using, tan(π - x) = - tanx
=> tan(π - 15°)
=> - tan15°
=> - (-√3 + 2)
=> √3 - 2 proved
For tan15° :
Using, tan2x = 2tanx/(1 - tan²x)
tan30° = 2tan15°/(1 - tan²15°)
1/√3 = 2tan15° / (1 - tan²15°)
1 - a² = 2√3 a {a = tan15°}
Solving this we get, a = -√3±2
As a = tan15°, it can't be -ve, thus
a = tan15° = -√3 + 2
Help me please !!!!!!!!!!!!!!
Answer:
-8
Step-by-step explanation:
All the other numbers like z=-3 and w=4 is all to trick you they aren't used. They put them there because it makes it harder to focus on one number and it throws you off. It's just doing the math by replacing the "x" with -1 and boom you have your answer!
Hope This Helps!!! Have a great day!!!
<3<3
Hello I need help for this math homework please
Answer:
1. first option
2. second option
3. second option
Step-by-step explanation:
i dunno i did the math and used a calculator. im pretty confident with my answers so hopefully theyre right
Ari exercises 1 5/8 hours per day. If he exercises five days a week, how many total hours does he exercise in a week?
HELPP\ PLEASE / QUICKLY !!!!!!!\
Answer:
8.125
Step-by-step explanation:
Just do 1 and 5/8 times 5
Answer:
8 1/8 hours a week
Step-by-step explanation:
I 5/8 times 5 gives me the product of 8.125. After converting that to a mixed number, you get 8 1/8.
You're welcome.
