In algebra - what can the letter "d" represent? For example, what does "d" stand for in this expression "2d + 3"? *
Answer:
A constant you need to find when given what the equation is equal to.
Answer:
Here, 'd' is the variable of 2.
2. Write an algebraic expression that models the cost of a telephone call is 35 cents plus 65 cents times the number of minutes. (use m for number of minutes)
Answer:
35 + 65 × m[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
A ant has six legs how many legs do eight ants have
Answer:
48
Step-by-step explanation:
In this problem, you need to find out how many total legs 8 ants would have together. Each ant has 6 legs; this means that to solve you must add 6 together 8 times. However, there is an easier way to do this. You can also multiply 6 by 8 to get the same answer. The answer is 48.
7 squared plus 10 times 5 plus 10
Answer:
109
7²=49 (7×7=49)
10×5=50
Therefore,
49+50+10= 109
Please help!
Thank you!!!
[tex] \frac{1}{6} = 0.166...[/tex]
[tex] \frac{2}{6} = 0.33...[/tex]
[tex] \frac{3}{6} = 0.5[/tex]
[tex] \frac{4}{6} = 0.66...[/tex]
[tex] \frac{5}{6} = 0.66...[/tex]
[tex] \frac{6}{6} = 1[/tex]
What is the sum of 15 and the square root of 144?
Answer:
27 pls mark me branilest
Answer:
27
Step-by-step explanation:
Hi there!
[tex]15+\sqrt{144}[/tex]
The square root of 144 is 12:
[tex]= 15+12[/tex]
[tex]= 27[/tex]
I hope this helps!
Someone help please
geometry help
1)what is the measure of the segment AB
2)what is the measure of segment CD
how so?
Answer:
AB = 18, CD = 16
Step-by-step explanation:
The 3 segments make the whole line , that is
AB + BC + CD = AD , substitute values
AB + 20 + (BD - BC) = 54
AB + 20 + (36 - 20) = 54
AB + 20 + 16 = 54
AB + 36 = 54 ( subtract 36 from both sides )
AB = 18
-----------------------------------------------------
BC + CD = BD , substitute values
20 + CD = 36 ( subtract 20 from both sides )
CD = 16
Answer:
Step-by-step explanation:
The system
2.+ 3y = 8
4x - y = 2
is solved algebraically. Which of the following can be used to correctly solve this system by using the elimination method? Selec
А
-2(2x + 3y = 8)
-4. -6y = -16
B
2(2x + 3y = 8)
-43 - 6y = 8
4r
-40 - by = -16
43 - y = 2
by : 8
2
4.2
- 4x + 4.r - by - y = -16 + 2
44-6y y = 8 + 2
C
34 - y = 2)
12-3y = 6
D
22. + 3y = 8)
13 6y = 16
2x + 3y = 8
12 - 3y = 6
4a +6y16
2
2x + 12x + 3y - 3y = 8 + 6
431-6yy = 16 + 2x
please helpppppppppp!!
Answer:
[tex](w ^{2})^{5} = {w}^{10} [/tex]
I hope I helped you^_^
Answer:
w raised to the power of 10
Step-by-step explanation:
When you have a power raised to a power, you multiply the exponents.
You can check by using a real number for the variable
(2²) raised to the power of 5
4 raised to the power of 5 = 4 x 4 x 4 x 4 x 4 = 1024
5x2 = 10
2 raised to the power of 10 = 1024
Which fractions are equal to 0.68?
Answer:
I think something like 17/25 because that is 68 percent
Answer:
68/100, 34/50, 17/25 are fractions equal to 0.68
a Find the Q2 and Q; of the following data. 5500, 6800, 4200, 3900, 7800, 6150, 4400, 7500 5 and 12 + 1 are in
Step-by-step explanation:
Quartile Formula:
Formula for Lower quartile (Q1) = N + 1 multiplied by (1) divided by (4)
Formula for Middle quartile (Q2) = N + 1 multiplied by (2) divided by (4)
Formula for Upper quartile (Q3) = N + 1 multiplied by (3) divided by (4)
Formula for Interquartile range = Q3 (upper quartile) – Q1 (lower quartile)
i don't know how to work it out but i gave you some information.
which diagram correctly
shows the relationship
betweer sets of numbers?
Answer:
D
Step-by-step explanation:
under real numbers we have natural numbers, whole numbers, integers rational numbers and irrational numbers
square root of the quantity x minus 2 end quantity plus 8 equals x
solve for x
Answer:
x = 11.
Step-by-step explanation:
√(x - 2) + 8 = x
√(x - 2) = x - 8
Square both sides:
x - 2 = (x - 8)^2
x - 2 = x^2 - 16x + 64
x^2 - 17x + 66 = 0
(x - 6)(x - 11) = 0
x = 6, 11.
With this type of question we could have extraneous roots so:
Check these 2 roots:
x = 6:
√(2 - 6) + 8 = √(-4)+8 <----- has no real value so this is not a root,
x = 11:
√(11-2) + 8 = 11 < ----Checks out.
Answer:
x = {6, 11}Step-by-step explanation:
[tex]\sqrt{x-2} + 8=x[/tex][tex]\sqrt{x-2} = x - 8[/tex]x - 2 = (x - 8)²x² - 16x + 64 = x - 2x² - 17x + 66 = 0x = (17 ± [tex]\sqrt{17^2- 4*66}[/tex]) / 2x = (17 ± 5)/2x = 11x = 6Find the are of the shaded region
Whats the answer and the steps
2(3x-4)
Answer:
-24
Step-by-step explanation:
2(3x-4)
6x-8
(4-xy)(5x-3y)-(x+y)(x-3y)
Answer:
20x-12y-5x²y+3xy²-x²+2xy+3y²
Step-by-step explanation:
(4-xy)(5x-3y)-(x+y)(x-3y)
20x-12y-5x²y+3xy²-(x+y)(x-3y)
20x-12y-5x²y+3xy²-x²+2xy+3y²
3(y - 5) + 2 = 5
answer choices:
a. 4
b. 7
c. -4
d. 6
Answer:
answer by your own
Step-by-step explanation:lol
Answer:
D.
Step-by-step explanation:
The first step is to subtract 2 on both sides, so
3(y - 5) + 2 - 2 = 5 - 2
3(y - 5) = 3
Next, multiply by or distribute the 3 on the left side.
3y - 15 = 3
Then, add 15 on both sides.
3y - 15 + 15 = 3 + 15
3y = 18
Finally, divide by 3 on both sides.
3y/3 = 18/3
y = 6
PLEASE HELP!!! I really need help with this.
Answer:
M. 2.5n - (-8.2) = 26. 7
to find n transpose
2.5n + 8.2 = 26. 7
2.5n = 26. 7 - 8.2
2.5n = 18.5
n = 18.5 ÷ 2.5
n = 7.4
L. [tex]\frac{7a + 1}{2}[/tex] = 18
7a + 1 = 18 ×2
7a + 1 = 36
7a = 36 - 1
7a = 35
a = 35 ÷ 7
a = 5
N. [tex]\frac{2}{5}[/tex] b + 1 = -11
[tex]\frac{2}{5}[/tex] b = -11 -1
[tex]\frac{2}{5}[/tex] b = -12
b = -12 - [tex]\frac{5}{2}[/tex]
b = 20
H. 5 - [tex]\frac{9}{2}[/tex] d = 32
- [tex]\frac{9}{2}[/tex] d = 32 - 5
- [tex]\frac{9}{2}[/tex] d = 27
d = 27 + [tex]\frac{2}{9}[/tex]
d = 6
4. HM SENSE-MAKING
A local gym membership costs $20 per month plus additional activity charges. If x is the number of exercise classes taken above the planned amoun and y is the number of massages taken above the planned amount, interpret each expression.
a. 15%
b. 55y
c. 15x + 55y + 20
Answer:
15x+55y+20
Step-by-step explanation:
mark me brainlest
The expression of the total cost of the gym will be 15x + 55y + 20. Then the correct option is C.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Local gym membership costs $20 per month plus additional activity charges. If x is the number of exercise classes taken above the planned amount of $15 and y is the number of massages taken above the planned amount of $55. Then the expression of the total cost of the gym will be
⇒ 15x + 55y + 20
The expression of the total cost of the gym will be 15x + 55y + 20. Then the correct option is C.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
what is 40% of 4x-10?
Point C is located between points B and D. Also BC = 5x + 7, CD = 3y + 4, BD = 38, and BD = 2x + 8y. Find the values of x and y
Using location of points and a system of equations, it is found that:
The value of x is 3.The value of y is 4.----------------------------------
Point C is located between points B and D means that:
[tex]BD = BC + CD[/tex]
----------------------------------
We are given that:
[tex]BC = 5x + 7[/tex][tex]CD = 3y + 4[/tex][tex]BD = 38[/tex][tex]BD = 2x + 8y[/tex]From this, two equations can be built.
[tex]2x + 8y = 38[/tex]
Dividing both sides by 2:
[tex]x + 4y = 19[/tex]
[tex]x = 19 - 4y[/tex]
----------------------------------
Finding y:
[tex]BC + CD = BD[/tex]
[tex]5x + 7 + 3y + 4 = 38[/tex]
[tex]5x + 3y + 11 = 38[/tex]
[tex]5x + 3y = 27[/tex]
Since [tex]x = 19 - 4y[/tex]
[tex]5(19 - 4y) + 3y = 27[/tex]
[tex]95 - 20y + 3y = 27[/tex]
[tex]17y = 68[/tex]
[tex]y = \frac{68}{17}[/tex]
[tex]y = 4[/tex]
----------------------------------
Finding x:
[tex]x = 19 - 4y = 19 - 4(4) = 19 - 16 = 3[/tex]
The value of x is 3.
The value of y is 4.
A similar problem is given at https://brainly.com/question/10956693
Plz answer this is important
Answer:
6
Step-by-step explanation:
It's just an educated guess but going from point A to point B there's six parts that the graph is separated by. (the lines.)
Find MN
Segment addition postulate
Answer:
MN= 6Step-by-step explanation:
Let MP= 32 and NP = 2632 - 26 = 6[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
Please help me I will give brainliest!
60,20,,30 is the answer
What's the area of a room that 18ft by 10ft
Answer:
180 square feet
Step-by-step explanation:
Square footage is calculated by multiplying width by length. So if a room is 18 foot wide by 10 foot long, 18 x 10 = 180 square feet.
6139m=_____km. answer pls i beg
Answer:
6.139km
Step-by-step explanation:
1000m = 1km
6139m = 6139/1000km = 6.139km
Answer:
6.139 km
Step-by-step explanation:
1 m = (1/1000) m
So, 6139 m
= (6139/1000) km
= 6.139 km
Peyton needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 4 hours and charged her $77 for parts. The total was $497. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.
Answer:
Step-by-step explanation:
the equatoin is 4x+77=497
and x is the hours spent
so solving it you subtract 77 from 497 which is 420 and 420/4 is equal to 105
Which of the following is the equation of the line that has x-intercept -2 and y-intercept -6?
А. y=-3x - 6
B. y=-2x - 6
C. y=-6x-2
D. y = 3x - 2
Answer:
a
Step-by-step explanation:
y=mx+c, where c is the y-intercept. hence,
y=mx-6
at the x-intercept, y=0 and x = -2
0 = m(-2)-6
2m = -6
m = -3
y = -3x-6
Answer:
a
Step-by-step explanation:
0 = m(-2)-6
M = -3
Y = -3x-6
Pls answer, you can get 100 points for answering, I'd give more but i can't.
Step-by-step explanation:
All steps are in picture.
If you have any question about it you can ask.
Thanks
#a
a(1)=1a(n)=3a(n-1)[tex]\\ \sf\longmapsto a(2)=3a(1)=3(1)=3[/tex]
[tex]\\ \sf\longmapsto a(3)=3a(2)=3(3)=9[/tex]
[tex]\\ \sf\longmapsto a(4)=3a(3)=3(9)=27[/tex]
[tex]\\ \sf\longmapsto a(5)=3a(4)=3(27)=81[/tex]
#b
b(1)=1b(n)=-2+b(n-1)[tex]\\ \sf\longmapsto b(2)=-2+b(1)=-2+1=-1[/tex]
[tex]\\ \sf\longmapsto b(3)=-2+b(2)=-2-1=-3[/tex]
[tex]\\ \sf\longmapsto b(4)=-2+b(3)=-2-3=-5[/tex]
[tex]\\ \sf\longmapsto b(5)=-2-5=-7[/tex]