Answers
Answer:
3) 6
4) 8
Step-by-step explanation:
3)
20x=120
20x/20=120/20
x=6
4)
10x+5=85
10x+5-5=85-5
10x=80
10x/10=80/10
x=8
Related Questions
What is the slope of the line that contains these points?
x 8 11 14 17
y 36 12 -12 -36
slope:
Answers
Answer:
-8
Step-by-step explanation:
Apply slope/gradient formula: (12 - 36)/(11 - 8) = -24/3 = -8
This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), I have already posted the slope formula which you may want to save it for future reference and I'll also post some of my own notes on certain topics and also some tips that may be useful to you :)
IS 2/7
an irrational number?
yes
no
Answers
Answer:
no, it is rational
Step-by-step explanation:
a rational number is one that can be expressed as division of an integer by a nonzero integer. So it is rational, not irrational.
An irrational number is a number that cannot be expressed as a fraction
So no
ULICU
Find k.
k
45°
7-12 m
45°
O 7
O 72
O 7V2
2
O 14
Answers
Answer:
O7v2 hope that helps ya! Mark as brainlest
If the cost of a notebook is 2x-3 and the cost of a pen is x-4, what is the cost of 3 notebooks and 5 pens?
Answers
Answer:
notebook=3 pen =1
Step-by-step explanation:
plug in the numbers in the equation. 2(3)-3 2*3=6 6-3=3
(5)-4=1
Help asap cuz idk what’s going on
Answers
Answer:
The answer is the first one or 9.5
Step-by-step explanation:
This is because you need to use a^2+b^2=c^2
Plug in 9 and 3
To get 81+9
To get 90
Now find the square root of 90
It is around 9.48
Which is closest to 9.5
18. Question Category: Writing Linear Functions and Equations
Select the correct answer.
What is the equation for a line that passes through the points (5,-3) and (-10,15)?
6
y =
52 – 3
y =
6
2 + 3
5
6
--
Oy= -
- 3
Oy=-=+3
Answers
Answer:
15-(-3)/(-10)-5
12/-15
3/5
y = 3/5x + b
15 = 3/5(-10) + b
15 = -6 + b
15 + 6 = b
b = 19
y = 3/5x + 19
Three more than the product of a number and 2 equals 7.
for the unknown number
Answers
Hope this helps and have a nice day/night!!!
Answer: the unknown number is 2.
Step-by-step explanation: 2x+3=7
2x=7-3
2x=4
X=2
The entrance to a museum in Paris is shaped like a square pyramid the base of the pyramid has a side length of 35 meter and the height of the pyramid is 22 meters which measurement is closest to the volume of the pyramid in cubic meter
Answers
Answer:
Step-by-step explanation:
8,983
Answer:
just to comfirm the answer it is 8,983 m, I got it right on my test
Step-by-step explanation:
Prasitha has two buildings A and B. A is 10 feet shorter than the twice the height of B. The distance between the buildings is 120 feet and the height of B is 60 feet. Find the distance between their tops.
Answers
Answer:
The distance between their tops is 130 feet
Step-by-step explanation:
The given parameters are;
The height of A, [tex]h_A[/tex] = 2 × The height of B - 10
The distance between the two buildings, d = 120 feet
The height of B, [tex]h_B[/tex] = 60 feet
Therefore, we have;
The height of A, [tex]h_A[/tex] = 2 × The height of B - 10 = 2 × 60 - 10 = 110 feet
The height of A, [tex]h_A[/tex] = 110 feet
By Pythagoras theorem, the distance between their tops = √(([tex]h_A[/tex] - [tex]h_B[/tex])² + d²)
Substituting the values gives;
The distance between their tops = √((110 - 60)² + 120²) = 130
The distance between their tops = 130 feet.
Solve the following system of equations using the elimination method.
8x + 2y = 30. AND
7x + 2y = 24
A
(6,–9)
B)
(3,–12)
C)
(–6,–5)
D)
(–5,8)
Answers
Answer:
A ( 6 . -9 ) it's so easy . . .. ..
Choose the equation that shows a step in the
process of completing the square on the given
quadratic.
y=x2 + 8x - 3
O y=x2 + 8x + 8 - 3-8
Oy=x2 + 8x + 8-3 +8
O y = x2 + 8x + 16 - 3 - 16
O y = x2 + 8x +16 - 3+16
Answers
Answer: y = x2 + 8x + 16 – 3 – 16
Step-by-step explanation:
Daren draws a scale model of the Statue of Liberty that is 15 inches tall. If the Statue of Liberty is 305 feet tall, what is the scale of the model?
Answers
Answer:
The scale of the model is 1 : 244.
Step-by-step explanation:
15 inches = 1.25 feet. (1 inch = 0.0833333 feet)
Hence, the scale is 1.25 : 305 = 1 : 244. (1.25 / 1.25 : 305 / 1.25)
Hope this helped!
A formal proof uses all of the following components except what?
A.) theorems
B.) a set of examples
C.) geometry rules
D.) algebra rules
Answers
Answer:
D.) algebra rules
Step-by-step explanation:
Had it on the quiz
Select all ratios equivalent to 1:8.
Answers
Answer: 2:16 - 3:24 - 4:32 - 5:40 - 6:48 - 7:56 - 8:64 // just keep adding each side to its own side
Step-by-step explanation:
Well I don't know the answer choices so
pLease help and thanks
Answers
Answer:
a
Step-by-step explanation:
Every x or domain is unique and doesn't repeat. Therefor, it will pass the vertical line test. You can not have a repeating x.
Given that
4x : 3= 11 : 5 Calculate the value of x
.
Answers
Step-by-step explanation:
[tex]1 \frac{13}{20} [/tex]
[tex]4x \3 = 11 \5 \\ \\ 20x = 33 \\ x = 33 \div 20 \\ = 1 \frac{13}{20} [/tex]
(52 divided by 4) + 5 exponent 3
Answers
the answer is 138, because you divide first then add and then multiply.
Answer:
138 (if the exponent 3 in strictly on the 5)
5832 (if the exponent 3 in on the whole problem)
Step-by-step explanation:
4.5(8 - x) + 36 = 102 - 2.5(3x + 24)
Answers
Answer:
x = -10
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
4.5(8 - x) + 36 = 102 - 2.5(3x + 24)
Step 2: Solve for x
Distribute: 36 - 4.5x + 36 = 102 - 7.5x - 60Combine like terms: -4.5x + 72 = -7.5x + 42Add 7.5x on both sides: 3x + 72 = 42Subtract 72 on both sides: 3x = -30Divide 3 on both sides: x = -10Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 4.5(8 - -10) + 36 = 102 - 2.5(3(-10) + 24)Simplify: 4.5(8 + 10) + 36 = 102 - 2.5(3(-10) + 24)Multiply: 4.5(8 + 10) + 36 = 102 - 2.5(-30 + 24)Add: 4.5(18) + 36 = 102 - 2.5(-6)Multiply: 81 + 36 = 102 + 15Add: 117 = 117Here we see that 117 does indeed equal to 117.
∴ x = -10 is a solution of the equation.
⚠️WILL GIVE BRAINLIEST⚠️
Answers
Answer:
It's letter C (x = -2) (y = 1)
Step-by-step explanation:
please please help me!!
Answers
Answer:
Domain (4, 18, 45, 58)
Range (-6, 5, 10)
Step-by-step explanation:
Can someone show me an orthographic drawing that can make different isometric diagrams?
Answers
Answer:
Step-by-step explanation:
Put these numbers in ascending order 1,3-3,-5,-7
Answers
Answer:
-7 , -5 , - 3 , 1 ,3
Step-by-step explanation:
ascending order is arranging from the lowest number to highest number.
Answer:
-7 ,-5 , -3 , 1 , 3
Step-by-step explanation:
negative value smaller positive value.thus, negative come first before positive value.ascending order is from smaller to greater.
almost due. would appreciate help please :)!!
Answers
a new candle is 8 inches tall and burns at a rate of 2 inches per hour. a. Write an equation that models the height h after t hours. b. Sketch the graph of the equation.
Answers
Find the surface area of the prism
Answers
=========================================================
Explanation:
The front triangular face is a triangle with base 8 and height 6. Its area is
A = 0.5*base*height
A = 0.5*8*6
A = 24 square feet
The back triangular face is also 24 square feet since these are the base faces of the prism. The base faces are always congruent. It might help to imagine this figure is turned on its side.
The slanted lateral face is a rectangle of length 10 ft and width 5 ft, so its area is L*W = 10*5 = 50 square feet
The rectangular face on the left is 6 ft by 5 ft giving an area of 6*5 = 30 square feet.
Lastly, the bottom rectangular face is 8 ft by 5 ft giving an area 8*5 = 40 square feet
Overall, the total surface area is: 24+24+50+30+40 = 168 square feet
We just add up all the individual areas of each face to get the total surface area.
Kathy's father thinks she spends too much time on the phone. He wants to see how much time she spent talking last month, but he does does not have the phone bill; he's has only his checkbook, which tells that her bill last month was $110. The phone company charges a monthly base fee of $50,plus ten cents per minute.how many minutes did Kathy spend on the phone last month?
Answers
Answer:
minute 600
Step-by-step explanation:
$1 = 100 pennies
60 = x pennies
x =6000/10
x = 600 minutes
What are the greatest common factor of 9a^b and 30ab^3?
Answers
Answer: 3ab IF a^b does NOT mean a to the power of b!
I believe you mean 9a²b and 30ab³
If you really mean 9aᵇ and 30ab³, then the GCF is 3a.
Step-by-step explanation:
the factors of 9 are 3*3 The factors of 30 are 2*3*5.
The only common factor of 9 and 30 is 3
a is a common factor of a and a²
b is a common factor of b and b³
Plz help I don’t know the answer very important question
Answers
Answer
D.26
Step-by-step explanation:
I need help!! PLEASE I DONT WANNA FAIL THIS SEMESTER
Answers
Answer:
I AM GUESSING ITS GONNA BE 39.6
Step-by-step explanation:because 40% of 99 is 39.6
Identify the coefficients in the following expression.
3x – 5y – z + 13
A. 3, -5, -1
B. 3, -5
C. 3, 5, 13
D. 3, 5, 1, 14
Show your work
Answers
Answer:
I think it is C I do not know