Answer:
[tex]63a - 42b \\ \\ = 21(3a - 2b)[/tex]
# be care#
name each indicated part of the algebraic expression 4x + y/3 - 2.3
4:
-2.2:
1/3:
y/3:
Answer:
» 4 → Coefficient of x [slope of a line]
» x → Term of 4
» ⅓ → Coefficient of y
» y → term of ⅓
-2.3 → Constant [y-intercept]
Step-by-step explanation:
Consider equation below:
[tex]{ \bf{ax + by + c}}[/tex]
• a is a coefficient of x-term
• b is a coefficient of y-term
• c is a constant
The indicated part of the algebraic expression 4x + y/3 - 2.3 are
4: Coefficient of x [slope of a line] x: Term of 4 ⅓: Coefficient of yy: term of ⅓-2.3: Constant [y-intercept]What is an algebraic expression?An algebraic expression in mathematics is an expression created using variables, constant algebraic numbers, and algebraic operations.
Given an algebraic expression 4x + y/3 - 2.3
The algebraic equation usually consists of a variable, coefficients, and constants.
the parts of the expression that are connected with addition and subtraction. These parts are called terms. A coefficient is a number that is multiplied by a variable in a mathematical expression. In a mathematical expression, factors are parts of the expression that are connected by multiplicationLearn more about algebraic expression here:
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help help help!! pleaseee
Answer:
b
Step-by-step explanation:
i dont know how to explain it lol but its b
with the options Givin I found the anserw was B
What percent of 600 is 334?
Enter your percent as a fraction in simplest form by filling in the boxes.
Answer:
55 2/3%
Step-by-step explanation:
Setup an equation and solve.
p x 600 = 334
p x 600/600 = 334/600
p = 55 2/3%
Hi There Answer 55 2/3%
Step-by-step explanation:
A sequence of steps for solving the equation 3(x - 2) = 4 is shown. Match a property to each blank box to show the reason for each step.
Step-by-step explanation:
1. 3(x-2)=4
2. 3x-6=4
3x=10
4.x=10/3
Answer soon!!!! (60 points)
Answer:
the second one, $63, i think
Step-by-step explanation:
solve each system of equations by showing the process of substitution.
a) y=-1/4 x and x+2y=4
b) y=-x-2 and 3x+3y=6
c) -8x+2y=4 and y=4x+2
pLS help
Answer:
A. {x,y}={-2,-3}
// Solve equation [2] for the variable x
[2] x = 2y + 4
// Plug this in for variable x in equation [1]
[1] (2y+4) - y = 1
[1] y = -3
// Solve equation [1] for the variable y
[1] y = - 3
// By now we know this much :
x = 2y+4
y = -3
// Use the y value to solve for x
x = 2(-3)+4 = -2
B. [1] 3x=3y-6
[2] y=x+2
Equations Simplified or Rearranged :
[1] 3x - 3y = -6
[2] -x + y = 2
Solve by Substitution :
// Solve equation [2] for the variable y
[2] y = x + 2
// Plug this in for variable y in equation [1]
[1] 3x - 3•(x +2) = -6
[1] 0 = 0 => Infinitely many solutions
C.Step by Step Solution
More Icon
System of Linear Equations entered :
[1] 4x - y = 2
[2] 8x - 2y = 4
Solve by Substitution :
// Solve equation [1] for the variable y
[1] y = 4x - 2
// Plug this in for variable y in equation [2]
[2] 8x - 2•(4x-2) = 4
[2] 0 = 0 => Infinitely many solutions
Answer:
Step-by-step explanation:
a) y = -1/4x --------------(I)
x + 2y = 4 -----------------(II)
Substitute y = (-1/4)x in equation (I)
[tex]x + 2*\dfrac{-1}{4}x=4\\\\\\x -\dfrac{1}{2}x=4\\\\Multiply \ the \ entire \ equation \ by \ 2 \\\\2x -x = 8\\\\x=8[/tex]
[tex]Substitute \ x = 8 \ in \ equation \ (I)\\\\y=\dfrac{-1}{4}*8\\\\\\y = -2[/tex]
Answer: x = 8 ; y = -2
b) y = -x - 2 --------------(i)
3x + 3y = 6 -----------(ii)
Divide equation (ii) by m
x + y = 2
y = -x + 2 ----(iii)
From (i) and (iii), it shows that these lines have same slope. So, they are parallel lines
Answer: No solution
3) -8x + 2y =4
2y = 8x + 4
Divide the entire equation by 2
y = 4x + 2 -------------(i)
y = 4x + 2 ----------------(ii)
From (i) and (ii), we come to know that these lines coincide.So, they have infinite solutions.
The sum of two numbers is 35. One number is 7 less than the other. Find the numbers.
Answer:
14+21
Step-by-step explanation:
because, 14+21 =35
21 is 7 more bigger than 14
help lol i need it rn
Answer: the top right
Step-by-step explanation:
An image of a rectangular prism is shown below: A right rectangular prism is shown. Part A: A cross section of the prism is cut with a plane parallel to the base. What is the name of the shape created by the cross section? Explain your answer. (5 points) Part B: If a cross section of the prism is cut diagonal to the base, what would be the shape of the resulting cross section? Explain your answer. (5 points)
Answer:
See belowStep-by-step explanation:
Part AThe base is a rectangle hence the parallel cut produces the same shape.Part BThe cut diagonal to base will produce rectangle as the cross section still contains two pairs of parallel linesI need help...............
Answer:
2 (a) d=3
(b) e= 21
(c) f= 4
3.(A) 3cm
This is your answer
Write a simplified expression for the perimeter of the triangle.
Answer:
15m+13
Step-by-step explanation:
The perimeter of a triangle is the sum of all sides.
[tex]=(7m+4)+(8m-3)+(12)\\\\=7m+4+8m-3+12\\\\=15m+13[/tex]
A mathematics test has 15 items. In how many ways can a student answer the exam with 9 correct answers and 6 wrong answers?
a. 15
b. 30
c. 90
d. 5,005
Answer:
Surprisingly the answer is 5,005.
Basically this is asking "in how many ways can you choose 9 things from a set of 15 things".
You will need to use the formula found at the top of this page:
https://www.1728.org/combinat.htm
Filling in the formula in which 'r' = 9 and n = '15'
combinations = n! / (r! * (n-r))!
combinations = 15*14*13*12*11*10 * 9! / (9! * 6!)
combinations = 15*14*13*12*11*10 / 6*5*4*3*2*1
combinations = 14 * 13 * 11 * 10 / 4
= 14 * 13 * 11 * 2.5
= 5,005
answer is "d"
Step-by-step explanation:
Really Easy Points!!!
-
Define potential
Potential is what an individual is capable of doing or becoming
Answer:
Having or showing the capacity to develop into something in the future is called potential
What is the distance between (0, 0) and (-7, -3)? Round your answer to the nearest tenth.
Answer:
Distance = -7.6
Step-by-step explanation:
Using Distance Formula, √((x2-x1)^2 + (y2-y1)^2)
√((-7 - 0))^2 + (-3 - 0)^2) = 7.6
an employee earns $31.20 after four hours and $54.60 after seven hours. What is the employees hourly rate of pay?
Answer:
$7.80 an hour
Step-by-step explanation:
$31.20/4 = 7.8
$54.60/7 = 7.8
Answer:
$7.80 per hour
Step-by-step explanation:
I know this equation might seem a bit complicated, but it's actually really simple. Just divide.
$31.20/4 = $7.80
Now we just have to make sure the second one matches.
$54.60/7 = $7.80
Since they both match, the hourly rate of pay is $7.80.
In each of the following, solve for X.
Answer:
Solving for X: x = 8
Step-by-step explanation:
Set up as proportion and cross multiply to solve:
12/15 = x/10
x = 8
y = x + 10
y = 8 + 10
y = 18
Seventy percent of what number is 35?
Seventy percent of fifty (50) is 35
What is the percentage?The percent or percentage of a number is the division of the number with 100.
From the given information, we are being told that 70% of a number is 35.
Let's assume that the unknown number is: (x)It means that:
70% of x = 35
[tex]\mathbf{(\dfrac{70}{100})x = 35}[/tex]
0.7x = 35
Divide both sides by 0.7
x = 35/0.7
x = 50
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Elena writes the equation 6x+2y=12. Write a new equation that has:
no solutions in common with Elena's equation
PLEASE HELP ME FAST!!
What is the domain of the function y = StartRoot x 6 EndRoot minus 7?.
A function is a mapping from domain to range. The domain of the function [tex]y = \sqrt{x+6} - 7[/tex] is given as: [tex]x \geq -6[/tex] or [tex]x \in [-6, \infty)[/tex] (both are same)
What is domain and range of a function?Domain is the set of values for which the given function is defined.Range is the set of all values which the given function can output.One method of finding the domain of a function is to start by finding the values for which it isn't defined.
Assuming that the function [tex]y = \sqrt{x+6} - 7[/tex] is defined for only real numbers, then, as we know that:
[tex]\sqrt{x}[/tex] exists only if x is non-negative, which means for [tex]\sqrt{x+6}[/tex] to be defined, we need
[tex]x + 6 \geq 0\\x \geq -6[/tex]
No other way is there for the function to be non-existing.
Thus, the values on which the function is defined is all real numbers bigger or equal to -6. This is the domain of the given function.
Thus, the domain of the function [tex]y = \sqrt{x+6} - 7[/tex] is given as: [tex]x \geq -6[/tex] or [tex]x \in [-6, \infty)[/tex] (both are same)
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Answer:
Its B
Step-by-step explanation:
Brenda is given a budget of $1100 to remodel her bedroom. It will cost her $12 for each can of paint she buys. If she wants to have $850 leftover to buy new furniture, how many cans of paint can she buy?
Answer:
20
Step-by-step explanation:
please rate 5 stars and thank it and make brainliest
hope this helps have a good day
The perimeter of square is 240.What is the length
ring-ring. *pick up phone* Hello, Einstein? I be needing some help.
Thank you.
Answer:
The one that you pick is correct
Please help this is due today
Answer:
The answer is 345
Step-by-step explanation:
The lateral surface area of a cylinder can be defined as the surface area of all of the sides of the cylinder excluding its base and top is calculated using lateral_surface_area = 2* pi * Radius * Height. To calculate Lateral Surface Area of a Cylinder, you need Radius (r) & Height (h).
but instead, will be using 3.14
2*3.14*4.9*11.2
6.28*54.88 = 344.6464
344.6464 rounded to the nearest whole number is:
345
can someone please help me with the 3 problems?
Answer:
1. s-110=-124
+110
s=-14
2. 4 gallons
3. 96 oz
Hope This Helps!!!
Two trains, Train A and Train B, weigh a total of 473 tons. Train A is heavier than Train B. The difference of their weights is 397 tons. What is the weight of each train?
Answer:
You say
473- 397
=76
So maybe train A is 76 tons while train B is 397
Hope answer helps
Patricia went to lunch with friends. She ordered soup and a salad for $11.75. The tax was 5.8%. What was the total amount Patricia paid for her lunch? Enter your answer in the box.
Answer:
12.43
Step-by-step explanation:
Hi There Answer 12.43
Step-by-step explanation:
(Unitary Method)
12 workers can do a piece of work in 20 days. How many workers should be added to complete the work in 16 days?
(Give answer in process by process)
(Answer is 3 workers)
Given :-
12 workers can do a piece of work in 20 days .To Find :-
How many workers should be added to complete the work in 16 days ?Solution :-
According to the question ,
→ In 20days 12 workers can do a piece of work.
→ In 1day 12*20 workers can do that work
( Less days , more workers )
→ In 16 days 12*20/16 = 15 workers can do the work.
So 15 -12 = 3 workers should be added to complete the work.
Hence the required answer is 3 .
I hope this helps.
[tex]x+2y\leq 10,x+y\leq 3[/tex]
Is (4,2) a solution to this system of equations?
y = -x + 6
y = 2x - 4
Answer:
No
Step-by-step explanation:
substitute the x- coordinate of the point into both equations and if the value obtained is equal to the y- coordinate then the point is a solution.
y = - 4 + 6 = 2 ← true
y = 2(4) - 4 = 8 - 4 = 4 ≠ 2 ← false
Thus the point is not a solution to the system
A toy shop has stuffed Ana I’m als originally priced at $25 each. There is now a 20% discount on the stuffed animals. What is the sale price of each stuffed animal?
Answer:
$20 for each stuffed animal
Step-by-step explanation:
[] The original price is $25, but it is 20% off.
100% - 20% = 80%
[] Now we can find 80% of $25.
-> First, 80% divided by 100 becomes 0.8, a decimal we can work with
25 * 0.8 = 20
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather