How many solutions are there to
the following system of
equations?
2y = 6 - x
x + 2y = 6
A = none
B= 1
C = infinitely many
D = 2
Answers
Answer:
C
Step-by-step explanation:
there are infinitely many solutions since different values of x and y will work for this simultaneous equation
Related Questions
Work out 3% of 860kg
need this asap!!!
Answers
Answer:
3% of (860 kilograms) =
25.8 kilograms
Answer:
Step-by-step explanation:
3 * 860/100
= 2580/100
= 25.8.
How much time has passed from the first clock to the second clock?
The time passed is less than 12 hours. 4:20 and 8:55
Answers
Select all the fractions that have the same decimal value
Answers
Answer:
1 and 1/3 as well.
Step-by-step explanation:
Convert 1 and 1/3 to a fraction by multiplying the whole number by the denominator and adding it to the numerator.
1 x 3 + 1 = 4
= 4/3
simplify 6a+4b+8+3b-4a+9
Answers
Answer:
2a+7b+17
Step-by-step explanation:
MATH
hey please help i’ll give brain
Answers
Answer:
The missing numbers are 5, then 35, then 49.
Step-by-step explanation:
I promise it's right :)
Hi ;-)
[tex]7\times7=(\boxed5\times7)+(2\times7)\\\\=\boxed{35}+14\\\\=\boxed{49}[/tex]
please help me for my homework
Answers
Answer:
49/100
Step-by-step explanation:
Answer:
Decimal Fraction Percentage
0.49 49/100 49%
In the figure below, line / line m. If the measure of Z1 =125° and the measure of <=50', then what is the measure of
25 ?
5
34
m
05
O 75
O 55
O 105
Answers
Start by solving for angle 2 by using the linear pair rule: all linear angles sum to 180
125 + angle 2 = 180
angle 2 = 55
Now, we know that line l and line m are parallel. If we look at these two lines plus the left side of the triangle, we can see it forms a z shape. This means angle 2 and angle 5 are alternate exterior angles. This means they are congruent.
Room A is cleaned every 9 days. Room B is cleaned every 6 days. What is the fewest number of days that will pass before both rooms are cleaned again on the same day?
Answers
Answer:
on the 18th day
Step-by-step explanation:
LCM for 6 and 9 is 18 :)
can anyone solve this please it's an urgent
Answers
Answer:
missing element is 6
Step-by-step explanation:
Given
f(x) = x³ - 2 ( substitute x = 2 )
f(2) = 2³ - 2 = 8 - 2 = 6 ← missing element
ordered pair is (2, 6 )
Answer:
[tex]f(x) = {x}^{3} - 2 \\ f(2) = {2}^{3} - 2 \\ = 8 - 2 = 6 \\ (2 \: \: 6) \\ thank \: you[/tex]
You offered a SALARY job of $47,603, and you are expected to work 44 hours a week
What would your hourly rate be?
Answers
Answer:
$20.81
Step-by-step explanation:
There are 52 weeks in a year.
Let's say you get paid x dollars per hour. Every week, you get paid x dollars for each hour you work. If you work 44 hours, you get paid x * 44 dollars a week. We get paid x * 44 dollars each week for a year, for 52 weeks. We can represent this as (x*44) * 52 = x * 2288. This is the amount you get paid each year. Setting that to your yearly salary of $47,603, we have
$47603 = x * 2288
divide both sides by 2288 to isolate x
x ≈ $20.81
this is distance & midpoint formulas I don’t know how to solve this can anyone help?
Answers
Answer:
midpoint formula: (x₁ + x₂)/2, (y₁ + y₂)/2
distance: √[(x₂ - x₁)² + (y₂ - y₁)²]
Step-by-step explanation:
What points are you trying to calculate the distance and the midpoint for?
30 Oreo cookies for $2.99
Unit rate
Answers
Answer:
$0.10 per oreo
Step-by-step explanation:
To find the unti rate, all we need to do is divide.
2.99 / 30 ≈ 0.10
Best of Luck!
10) Joe's farm has 2 pumpkin fields with a total area of 5 3/4 , acres. The big field
yields 2 1/3 Tons of pumpkins and the small field yields 1 2/5 Tons of pumpkins
a) what is the total yield of both fields?
b) what is the total yield per acre for both fields combined?
Answers
You want to frame a picture that is 5in by 7in with a 2.5 inch-wide frame.
a. What is the perimeter of the pictures? What is the perimeter of the outside edge of the frame?
b. What is the area of the picture? What is the area of the frame?
Answers
d. 3h =
h = 3.66 hours
2. Jane can run 2 miles per hour around the Belmont Track. He
needs to run a total of 10 miles and has already done 3
miles. Which equation and answer shows the number of
hours (h) it will take for him to run the rest of the miles?
e. 2h + 3 = 10; h = 3.5 hours
f. 3h + 2 = 10; h = 2.66 hours
g. 2h = 10 ; h = 5 hours
h. 3h = 10 ; h = 3.33 hours
(hp
Answers
Explanation:
Jane can run 2 miles per hour. (2h)
He need to run 10 miles in total and has done 3 so far. (+ 3 = 10)
The equation can be written:
2h + 3 = 10
2h = 7
h = 7/2 = 3.5
A toy manufacturer produces a set of blocks, with edge b, that can be used by children to build play structures. The production team is analyzing the amount of paint they need for a block
Answers
The expression for the total number of blocks is b³
This question seems to be incomplete. Here is the complete question :
A toy manufacturer produces a set of blocks that can be used by children to build play structures. The product packaging team is analyzing different arrangements for packaging their blocks. One idea they have is to arrange the blocks in the shape of a cube, with b blocks along one edge.
Write an expression representing the total number of blocks packaged in a cube measuring b blocks on one edge.
A cube is a 3-dimensional object that has six faces.
Characteristics of a cube
It has six faces It has twelve edges It has eight vertices Intersecting edges are perpendicularVolume of a cube = a³
Where a = length of a side
The expression that would be given is the volume of a cube. Since the length of the edge is b, the expression would be b³
To learn more about cubes, please check : https://brainly.com/question/11168779?referrer=searchResults
Given f(x)=9x^2 find f(-3)
Answers
Answer: f(-3) = 81
Step-by-step explanation:
f(-3) = 9(-3^2)
f(-3) = 9(9)
f(-3) = 81
Answer:
f(- 3) = 81
Step-by-step explanation:
Substitute x = - 3 into f(x) , that is
f(- 3) = 9(- 3)² = 9(9) = 81
There is a plant whose growth can be represented by a linear function. At 1 week it is
2 inches tall and at 2 weeks it is 4 inches tall. Write a linear equation to represent the
growth of the plant.
O y = 2x + 2
O y = 2x
O y = 4x + 2
Answers
Answer:
y=2x
Step-by-step explanation:
we can set x=number of week, and y=inches
as you can see, 1 week-> x=1 :y=2(1) = 2 inches
2 week-> x=2 :y=2(2)=4 inches
**if we substitute x to y = 2x + 2 and y = 4x + 2, it will not works.
please help it is midpoint
Answers
[tex]\\ \rm\hookrightarrow (x,y)=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
[tex]\\ \rm\hookrightarrow (x,y)=\left(\dfrac{15+1}{2},\dfrac{9-9}{2}\right)[/tex]
[tex]\\ \rm\hookrightarrow (x,y)=\left(\dfrac{16}{2},\dfrac{0}{2}\right)[/tex]
[tex]\\ \rm\hookrightarrow (x,y)=(8,0)[/tex]
Answer:
[tex]mid \: point \: for \: x = \frac{x1 + x2}{2} \\ = \frac{15 + 1}{2} = \frac{16}{2} = 8 \\ mid \: point \: for \: y = \frac{y1 + y2}{2} \\ = \frac{ - 9 + 9}{2} \\ = \frac{0}{2} \\ = 0then \: (x \: y) = (8 \: 0) \\ thank \: you[/tex]
Solve for x. Show all your work to receive full credit.
Answers
Answer:
x=6
Step-by-step explanation:
23x-5 + 5x+17 = 180
28x+12=180
28x=180-12
28x = 168
x=168/28
x= 6
Question : -6+(-6)+(-6)
Answers
-6-6-6
-6-6-6 (add values, keep the negative sign)
Formula: 1/2 b*h b= 4; h=6
Answers
Answer:
12
Step-by-step explanation:
1/2•4•6 = (4•6)/2 = 24/2 = 12
4 meters 85 millimeters to milimeters.
Answers
Answer:
4085
Step-by-step explanation:
4 meters = 4000 millimeters + 85
= 4085
Answer:
By changing 4 meters 85 millimetres to milimetres we get 4085 milimetres
Step-by-step explanation:
In the first step change 4m to mm
We know that 1m = 1000mm
So, 4m = 4000mm
Now add 4000mm to 85mm
= 4000mm+85mm
= 4085mm
If x=1/8 what is the value of y when 2/x = y/4
Answers
Answer:
y = 64
Step-by-step explanation:
x = 1/8
Substituting x in the equation,
=> 2/(1/8) = y/4
=> 2 x 8 = y/4
=> 16 = y/4
=> y/4 = 16
=> y = 16 x 4
=> y = 64
The value of y will be;
⇒ y = 64
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ 2/x = y/4
Now,
Since, The expression is,
⇒ 2/x = y/4
Substitute x = 1/8, we get;
⇒ 2/(1/8) = y /4
⇒ 2 × 8 = y / 4
⇒ 16 × 4 = y
⇒ y = 64
Thus, The value of y = 64
Learn more about the mathematical expression visit:
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Evaluate
(9n +8m)
—————
2j
when n = 4, m = -2 and j = 5
2j
Answers
Answer:
2Step-by-step explanation:
Let n= 4, m= -2 and j= 5(9n + 8m)/2j= 9(4) + 8(-2)/2(5)= 36 + (-16)/10= 20/10= 2[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
A strawberry cake recipe need w eggs for every 200g of flour. How many eggs are needed for 1000g of flour
Answers
Answer:
5w eggs
Step-by-step explanation:
200 * 5 = 1000
so if w eggs are needed for 200 g of flour
then 5 * w eggs are needed for 200 * 5 = 1000 g of flour
Answer:
5w eggs
Step-by-step explanation:
if two rectangles have the same perimeter, do they have to be congruent??
Answers
Answer:
No they do not have to be congruent.
Two rectangles with the same perimeter but may not be congruent, because the length and width dimensions of each may be different.
Could someone please walk me through how to solve this?
Answers
[tex] \sqrt{ {(x2 - x1)}^{2} + {(y2 - y1)}^{2} }[/tex]
Consider the graphs of f (x) = l x l + 1 and g (x) = 1/x^3. The composite functions f(g(x)) and g(f(x)) are not commutative, based on which observation?
Answers
Answer:
C on edge
Step-by-step explanation:
The domains of f(x) and g(x) are different. (answer)
The domains of graph f(x) and g(x) are different.
What is commutative function?A mathematical operation is commutative if the numbers used can be changed without changing the outcome. As illustrated here, addition and multiplication are two examples of commutative operations. 2+3 = 5
3+2 = 5
2*3 Equals 6
3*2 Equals 6.
To learn more about commutative functions refer to:
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A car initially traveling at 20 kilometers per hour takes 10 seconds to speed up to 70 km/hour. At what rate is it changing speed?
Answers
Convert speeds to m/s
[tex]\\ \rm\longmapsto u=20\times\dfrac{5}{18}=5.05m/s[/tex]
[tex]\\ \rm\longmapsto v=70\times \dfrac{5}{18}=19.4m/s[/tex]
[tex]\boxed{\sf Acceleration=\dfrac{v-u}{t}}[/tex]
[tex]\\ \rm\longmapsto Acceleration=\dfrac{19.4-5.05}{10}[/tex]
[tex]\\ \rm\longmapsto Acceleration=\dfrac{14.3}{10}[/tex]
[tex]\\ \rm\longmapsto Acceleration=143m/s^2[/tex]