Can someone tell me how to solve -3x-4y=-2 and y=2x-5 in elimination form!!!!!
Question 5
Write the equivalent expression by combining like terms.
-5x + 2y + 3x
plssss rn 45 POINTS
Answer:
D
Step-by-step explanation:
We are combining like terms So,
Step 1
-5x + 2y + 3x
Step 2
-5x + 2y + 3x combine like terms
(-5x+3x)+(2y) Then you simplify
-2x+2y
So therefore, your answer is D
Car Survey In a survey of 2,000 people who owned a certain type of car, 1,400 said they would
buy that type of car again. What percent of the people surveyed were satisfied with the car?
Answer:
70%
Step-by-step explanation:
1. 1400÷2000 = 0.07
2. move the decimal over 2 spaces for a percentage 0.07 --> 70.0
3. 70.0 = 70%
Number of basketball players that have signed up for a new league. What is a possible scenario that would be modeled by this equation? Consider how many teams in the league and the number of players on each team this equation could describe
Complete question :
consider the equation x/5-2=11. if x represents the number of basketball players that have signed up for a new league, what is a possible scenario that would be modeled by this equation?
Answer:
Kindly check explanation
Step-by-step explanation:
The Number of players that signed up for a new league can be modeled using the following information :
The number of players per team
The number of teams in the league
For the equation given :
x/5 - 2=11
x could represent the total number of players, with the number of teams in the league being 5 ;
if 2 players were to leave any of the teams ; we have 11 players in that team.
Answer:
The equation could model a scenario determining the number of players on each team in a league of five teams, if 2 players have to be taken out of the possible players to be referees and to keep score. There will be 11 players on each team.
Step-by-step explanation:
Given f(x) = x + 1 and g(x) = 3x – 5,
what are
the restrictions on the domain when f(x)/g(x)
Answer:
There will be an asymptote at [tex]x=\frac{5}{3}[/tex], meaning the domain is restricted from (-∞, [tex]\frac{5}{3}[/tex])U([tex]\frac{5}{3}[/tex], ∞).
Step-by-step explanation:
When finding domain restrictions for an equation that has a fraction, take the denominator and set it equal to 0. Then, solve for x:
[tex]3x-5=0[/tex]
[tex]3x=5[/tex]
[tex]x=\frac{5}{3}[/tex]
Then we can determine that there's an asymptote at [tex]x=\frac{5}{3}[/tex] but that is the only restriction.
Use substitution to solve the system.
-5x + 3y = 14 y = 2x + 5
Answer:
=75y16 I think this is it
The radius of a circle is 5 units what's the diameter of a circle?
Answer:
10
Step-by-step explanation:
The radius is half of the diameter, so 5 * 2 = 10
Answer:
diameter=2×radius=2×5=10units
PLEASE HEEEELPPPP ASAP
Answer:
y = √(3² + 3²)
9 = √(5² + x²)
Step-by-step explanation:
Diagram 1:
Hypotenuse = y
Opposite = 3
Adjacent = 3
y² = 3² + 3²
y = √(3² + 3²)
y = √(9 + 9)
y = √18
Diagram 2:
Hypotenuse ² = known leg² + unknown leg²
Hypotenuse = 9
Known leg = 5
Unknown leg = x
9² = 5² + x²
9 = √(5² + x²)
9² = 5² + x²
9² - 5² = x²
x² = 81 - 25
x = √ 56
n is an even number. the smallest even number succeeding is
options:
n+2
n+3
n+4
n+1
Answer:
n+2 ...................... As addition of two even number make even and addition of one even and one odd makes odd so we can add 3 and 1 as it will result in odd .
if you solve x-7=9 what is the value of x
Answer:
16
Step-by-step explanation:
9+7=16
6(x+8.5)=123
(equation)
Answer:
12
Step-by-step explanation:
6(x+8.5)=123
=> 6x + 51 = 123
=> 6x = 123 - 51
=> 6x = 72
[tex] = > x = \frac{72}{6} [/tex]
=> x = 12 (Ans)
sandy found seashells and 119 starfish on the beach she gave 225 of the seashells to fred how many seashells does sandy niw have
Answer:
114?? Ummm I confused that's it......
After giving 225 of the seashells to Fred, then Sandy has -106 seashells now, which is determined by subtraction.
To calculate this, we subtract the number of seashells given to Fred from the initial number of seashells.
Seashells Sandy has now can be calculated as follows:
Seashells Sandy has now = Initial number of seashells - Seashells given to Fred
Therefore, we have:
= 119 - 225
Apply the subtraction operation to get
= -106
This negative sign indicates that there are not enough seashells
Therefore, after giving 225 of the seashells to Fred, then Sandy has -106 seashells now.
Learn more about subtraction here:
https://brainly.com/question/1927340
#SPJ4
A line crosses through the point (3,10) and another point can be found on the line by going right 2 and down 7. find slope and y intercept
Answer:
y = [tex]\frac{-7x}{2}+\frac{41}{2}[/tex]
Step-by-step explanation:
We are given the point (3, 10).
The second point is 2 on the x-axis and -7 on the y-axis. So our second point is: (3 + 2, 10 - 7) which is (5, 3).
Our formula for slope is m = [tex]\frac{rise}{run}[/tex] = [tex]\frac{y2-y1}{x2-x1}[/tex]
So, our equation would be [tex]\frac{3-10}{5-3}[/tex] = [tex]\frac{-7}{2}[/tex]
Using the standard formula of a line, y = mx + b, we can substitute for the slope, m.
y = [tex]\frac{-7x}{2}[/tex] + b
Now, we can substitute a point on the line to determine the y-intercept:
Using the point (3, 10),
10 = [tex]\frac{-7(3)}{2}[/tex] + b
b = 10 + [tex]\frac{21}{2}[/tex]
b = [tex]\frac{41}{2}[/tex]
So our full equation is: y = [tex]\frac{-7x}{2}+\frac{41}{2}[/tex]
Explain how to write an equivalent expression using the
distributive property.
2(11 + y)
K
Answer: 22 + 2y
Step-by-step explanation:
2 x 11 = 22
2 x y = 2
2(11+y) = 22+2y
Answer:
22+2y
Step-by-step explanation:
2*11 + 2* y
22 + 2y
HTH
what is V(0)=80(0.4)t
Which of the following represents The linear equation 3x+y=2 in slope-intercept form
Select one:
A. y−2=−3x
B. y=−13x−2
C. y=−3x+2
D. y=3x+2
I need answers I’ll cash app 10 dollars
1. 0 > 3x - 3 - 6
0 > 3x -9
9 > 3x
3 > x
It would be a closed circle starting from 3 going to the right.
2. 4x + 1 - 1 >/ -8
4x >/ -8
x >/ -2
It would be an open circle starting from -2 going to the right.
3. -1 </ 2n + 4 - 5
-1 </ 2n -1
0 </ 2n
Undefined.
4. -6 > 5n + 5 + 4
-6 > 5n + 9
-15 > 5n
-3 > n
It would be a closed circle going to the right
Complete the table using the equation y = 6x +3.
Select the correct answer.
Which expression is equivalent to x + y+ x + y +30+5)?
A. 2x + 5y+ 5
B. 2x + y + 30
C. 2x + 5y + 15
D.2x + 3y + 10
Answer:
Step-by-step explanation:
Like terms have same variable with same exponent. Combine the like terms.
x + x = 2x {Just add the coefficient}
x + y + x +y + 30 + 5 = x +x + y + y + 30 + 5
= 2x + 2y + 35
Find the perimeter of the
similar figure.
48cm
60cm
Perimeter = 120cm Perimeter = [?]cm
Answer:
[tex] \huge \boxed{ \boxed{ \sf parimeter = 150cm}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:similarityPEMDASequationtips and formulas:when two shapes are similar the rotio of two sides or area or parimeter is equallet's solve:[tex] step - 1 : define[/tex]
let the parimeter of second shape be x
[tex] \sf \frac{48}{60} = \frac{120}{x} [/tex]
[tex]step - 2 : solve[/tex]
[tex] \sf cross \: multiplication : \\ \sf 48x =72 00[/tex][tex] \sf divide \: both \: sides \: by \: 48 : \\ \sf \frac{48x}{48} = \frac{7200}{48} \\ \therefore x = 150[/tex]a taxi service charges $2.40 for the first mile of a ride and $1.40 for every additional mile. linda planned to give a $2 tip for the taxi driver. how many miles can she ride for $10?
Answer:
5 miles
Step-by-step explanation:
2 as a baseline then add 2.40 for first mile which then comes up to 4.40. 4.40 plus 1.40 = 5.80 plus 1.40 = 7.20 plus 1.40 = 8.60 plus 1.40 = 10. then we count the amount of 1.40's we added which was 4. and then we account for the first mile so there we have 5 miles
Answer:
5 miles
Step-by-step explanation:
Alice drew a rectangle with a perimeter of 30 cm and an area of 56 cm2. Which dimensions match Alice's rectangle?
Answer:
The dimensions that match Alice's rectangle are 7 cm and 8 cm.
Step-by-step explanation:
The perimeter of the rectangle is given by:
[tex] P = 2(a + b) = 30 cm [/tex] (1)
Where a and b are the sides of the rectangle
Also, the area of the rectangle is:
[tex] A = a\times b = 56 cm^{2} [/tex] (2)
By solving equation (1) for a, we have:
[tex] a = 15 cm - b [/tex] (3)
Now, by entering equation (3) into (2) we can find one side of the rectangle:
[tex] 56 cm^{2} = (15 cm - b)\times b [/tex]
[tex] b^{2} - 15b + 56 = 0 [/tex]
Solving the above quadratic equation we have:
b₁ = 7 cm and b₂ = 8 cm
Now, the other side of the rectangle can be calculated with equation (3):
[tex] a = 15 cm - b_{1} = 15 - 7 cm = 8 cm [/tex]
or
[tex] a = 15 cm - b_{2} = 15 - 8 cm = 7 cm [/tex]
Taking the first solution (b₁) or the second (b₂), we find that the dimensions that match Alice's rectangle are 7 cm and 8 cm.
Therefore, the dimensions that match Alice's rectangle are 7 cm and 8 cm.
I hope it helps you!
What is the value of x in the diagram?
(x + 45)
(x + 105)
if the addition if (X+45)° and (X+105)° equal 180°
due to they are a co- interior angles.
then X+45+X+105 = 180°
2X+150 = 180°
2X = 30
X = 15°
Any help will be appreciated. I’ve tried 3x and all answers I come up with it says wrong
Answer: C = 12.56
Step-by-step explanation:
Since radius is 2, the diameter is double the radius which would be 4. C= 3.14 x 4. C = 12.56
7-3y=34
What's y??
Plzzz help due today!!
Answer:
y = -9 (negative 9)
Step-by-step explanation:
7 - 3(-9) =
7 - (-27) =
34
Hope this helped and pls mark brainliest!
Answer:
y = -9Explanation:
7 - 3y = 34
Simplify both sides of the equation
7 − 3y = 34
7 + −3y = 34
−3y + 7 = 34
Subtract 7 from both sides
−3y + 7 − 7 = 34 − 7
−3y = 27
Divide both sides by -3
−3y / -3 = 27 / -3
Simplify
y = -9
SOMEONE PLEASEEEEEEEE!!!!!!11
Robert's new hybrid car has a gas tank that holds 12 gallons of gas. When the tank is full, they can drive 420 miles. Assume that their car uses gas at a steady rate.
a. What is the unit rate:
b. Write the equation:
c. Use your equation to find out how many gallons of gas Robert will need to drive 287 miles. 287miles =
gallons of gas
Answer:
sorry i only know the answer of c
it's 8.2 gallons
Step-by-step explanation:
12 gallons = 420 miles
12 gallons = 420 miles? gallons =287 miles
420 miles ÷ 12 gallons = 35miles/gallon
420 miles ÷ 12 gallons = 35miles/gallon287 miles ÷ 35 miles/gallon = 8.2 gallons
Answer:
Step-by-step explanation:
Unit rate = (420 miles)/(12 gallons) = (420/12 miles)/gallon = (35 miles)/gallon
:::::
Fuel consumption = (number of miles) × (1 gallon)/(35 miles)
:::::
287 miles × (1 gallon)/(35 miles) = 8.2 gallons
Our principal has to travel from one city to the next city at an average speed of 50km/hr. Compute for the distance between 2 cities
Answer:
The answer is false or "impossible"
Step-by-step explanation:
Heres why I say this:
If the “average speed” in one hour make the car travel 50km, it means the speed could not be constant. So, it could be 90km/h during the first 30 minutes and 10km/h during the second 30 minutes. If this is the case, for example, in the next 12 minutes after the first hour, the car could be traveled 18km at 90km/h, completing 50 + 18 = 68km. The tricky word “average” makes it impossible to answer. Good try, but no cigar.
0. The temperature drops 2 degrees per hour for 3 hours. Which of the
following expressions does NOT describe this change in temperature?
a. -2 + (-2) + (-2)
b. 2(3)
d. -2 - (2) - (2)
c. -2(3)
Answer:
B. 2(3)
Step-by-step explanation:
The other 3 all shows decreasing of 2 three times. 2(3) would be increasing.
I have a curved surface.
I have no flat surfaces
Answer:
A spehere
Step-by-step explanation:
A sphere only made up of a curved surface
on the other hand, a cone, cylinder, etc, have a flat surface. for a cone it's the floor. for a cylinder it's the ceiling and the floor of the object
Katy inherited a savings account that was started by her grandfather 20 years ago. His investment can be modeled by the function
A(t) = 10,000(1.012)^t+ 20, where A(t) represents the value of the account, in dollars, t years after the inheritance. Which function is
equivalent to A(t)?
A)
A(t) = 10,000(1.012)^20
B)
A(t) = 10,000[(1.012)^t]^20
C)
A(t) = 10,000(1.012)^t (1.012)^20
D)
A(t) = 10,000[(1.012)^t + (1.012)^20]