Answer:
Student should show that the solution to the system of equations 7x - y = 4 and 2x - 3y = 1 is the same as the solution to the given system of equations.
Step-by-step explanation:
Given System of equations is 5x + 2y = 3 (equation 1) and 2x - 3y = 1 (equation 2)
Second System of equations is 2x - 3y = 1 and 7x - y = 4
How we got 7x - y = 4
Step 1: Multiply 2x - 3y = 1 by 1, we get the same 2x - 3y = 1
Step 2: Add 5x + 2y = 3 with 2x - 3y = 1
5x + 2x + 2y - 3y = 1
7x - 3y = 1
We have got second equation 7x - 3y = 1
Thus, Student should show that the solution to the system of equations 7x - y = 4 and 2x - 3y = 1 is the same as the solution to the given system of equations.
help asap
Determine the value of x.
Question 6 options:
1)
40°
2)
140°
3)
280°
4)
70°
Answer:
i think 1 but I am not sure
Step-by-step explanation:
643846584508456+8926458964=?
643,855,510,967,420 is your answer
Answer:
go.ogle went st.up.id tryna figure that out
Step-by-step explanation:
Use the distributive property to write an equivalent expression
10(6r + 7)
Answer:
60r+70
Step-by-step explanation:
10(6r+7)
(6r*10)+(7*10)
60r+70
R is equivalent to 1.1666...
Answer:
60r+70
Step-by-step explanation:
From the equation y−3=−2(x+1), identify the slope and a point on the line.
Answer:
slope = - 2, point on line = (- 1, 3 )
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
y - 3 = - 2(x + 1) ← is in point- slope form
with slope m = - 2 and (a, b ) = (- 1, 3 )
The slope of equation y−3=−2(x+1) is -2.
What is Slope?A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,
m = Δy/Δx where, m is the slope
Given:
y−3=−2(x+1)
Using Slope- Intercept form
y= mx + b
So, the slope for the equation is -2.
Hence, the slope is -2.
Learn more about slope here:
https://brainly.com/question/3605446
#SPJ2
WILL MARK YOU BRAINLIEST HURRY PLZ
Answer:
16 sides and 157.5°
Step-by-step explanation:
Becky, Ray, and Celeste split a $12.84 pizza bill evenly. Which expression represents
how much each person paid in dollars?
O 12.84 - 2
O 12.84 -3
O 12.84 +2
O 12.84 +3
Solve for x; -6 = –6(3x —8)
Answer:
x = 3
Step-by-step explanation:
PLEAASE HALLP EXPLAIN!! NEED HEEELP 14 POINTS
Angle A and angle B are supplementary and vertical angles. What is m B?
Answer:
it’s 90 because there equal add both up to 180
Answer:
I think its 90 but don't trust me im literally failing all my classes
Shawn bought $45.00 worth of pencils from Office Max. If the sales tax is 4%, what was the amount of tax she had to pay?
Answer:
$46.8
Step-by-step explanation:
45x.04=1.8
45+1.8= 46.8
Work out the volume of this sphere.
Give your answer to 1 decimal place.
Spheres
Vol = ar
19 cm
Answer:
The volume is;
3951.8 cm^3
Step-by-step explanation:
As we can see, the sphere diameter is 19 cm
Radius is half of this which is 19/2 = 9.5 cm
Putting this in the area , we have
4/3 * 3.142 * 9.5^3 = 3951.8
cm^3
Helpppppp
Show workings
Answer:
C
Step-by-step explanation:
So this one is pretty much like the last one
the distance on the x values is 6 and the distance on the y values is 4
1/6 of 6 is 1 and 1/6 of 4 is .66
We subtract the coordinates from R
4-1 is 3
2 -.66 =1.33
The 1/6 point is at (-3,1.33)
I need this a.s.a.p please
Answer:
You would multiply 38.3 time .40 which is the 40%
this would give us
=15.32
If the corresponding side lengths of two triangles are _____________________ then the triangles are similar
If the corresponding side lengths of the two triangles are equal then the triangles are similar
Which is the best first step for the "Remove then Replace" strategy for solving 0.03 x 0.65
A. 3 x 65 =
B. 30 x 65
C. 3 x 6.5 D. 0.03 x 65
D. 0.03 x 65
Answer:
A
Step-by-step explanation:
!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:A
Step-by-step explanation:
Cindy has $75. She goes to the store and buys a set of markers for $6, a box of pencils for $12, and 4 notebooks. The notebooks all cost the same. Cindy has $39 left when she leaves the store.
Part A. Write an equation to determine the price of one notebook. Let n represent the cost of the notebook.
Part B. What is the price of each notebook?
NEED HELP ASAP EXTRA POINTS FOR MATH MATICIANS
2. Solve the problem and pick the correct number.
9 pencils cost 2.43. what is the unit rate for one pencil
Answer:
2.43/9
Step-by-step explanation:
2.43/9 i leave u to calculate
Hello if you can please help me with this i will make you brainlliest.?
Write the answer in simplest form.
1 5/6×2 3/8=
Answer:
209/48 or mixed number 4 [tex]\frac{17} \frac{48}[/tex]
Step-by-step explanation:
If the surface area of a sphere is 144pi square centimeters, what is the length of the radius of the sphere, in centimeters
Answer:
6cm
Step-by-step explanation:
The formula for the surface area of a sphere = 4πr²
From the Question, we are given:
The surface area of a sphere = 144pi square centimeters = 144π cm²
The length of the radius of the sphere, in centimeters is calculated by:
4πr² = 144π
Divide both sides by 4π
4πr²/4π = 144π/4π
r² = 36
Square root both sides
√r² = √36
r = 6cm
Therefore, the length of the radius of the sphere, in centimeters is 6 centimeters.
What is the difference x/x^2+3+2 - 1/(x+2)(x+1)
Answer:
#4, x-1/(x^2+3x+2)
Step-by-step explanation:
x/(x^2+3x+2) - 1/((x+2)(x+1))
Convert the 1/((x+2)(x+1)) to 1/(x^2+3x+2)
now you have a common denominator to subtract
x/(x^2+3x+2) - 1/(x^2+3x+2)
results x-1/(x^2+3x+2)
The expression 42 plus 57 shows how much money Nate spent at a store. Which expression also shows how much money Nate spent?
Select the correct answer.
Which expression is equivalent to the given expression?
help !!
Evaluate (2.4x10^4) (4.5x10^3)
Answer:
108000000x^2
Step-by-step explanation:
The given expression (2.4 × 10⁴) (4.5 × 10³) becomes 1.08 × 10⁸ after performing the operations.
To evaluate the expression (2.4 × 10⁴) (4.5 × 10³), we use the properties of exponents.
When multiplying numbers written in scientific notation, we multiply the coefficients and add the exponents.
(2.4 × 10⁴) (4.5 × 10³) = (2.4 × 4.5) × (10⁴ × 10³)
= 10.8 × 10⁷
Next, we simplify the result by adding the exponents since the base (10) is the same:
10.8 × 10⁷ = 1.08 × 10⁸
Therefore, the final result of the expression is 1.08 × 10⁸.
Learn more about the expression here :
brainly.com/question/21751419
#SPJ6
The complete question is as follows:
Evaluate (2.4 × 10⁴) (4.5 × 10³)
Find the y intercept
5x + 6y = 12
Answer:
2
Step-by-step explanation:
Which expression is equivalent to 12x – 20 – 5(x – 3)
HELP
The angle measurements in a triangle are 38°, x, 29°, what is the value of the angle x?
a) 53°
b) 1130
c) 1030
d) 67°
Answer:
B: 113
Step-by-step explanation:
I think you ment 113. a triangle has 180 degrees, the 2 angles add up to 67, subtracted from 180 = 113
Is this right or no caused I just wanna make sure
===================================================
Work Shown:
2x+3y = 18
3y = 18-2x ..... subtract 2x from both sides
3y = -2x+18
y = (-2x+18)/3 .... divide both sides by 3
y = (-2x)/3 + 18/3
y = (-2/3)x + 6
-----------
As a quick shortcut, anything in the form Ax+By = C will convert to y = (-A/B)x+(C/B) when you solve for y.
The slope is -A/B and the y intercept is C/B
Find the length of the missing side (nearest tenth).
31 yd
12 yd
Answer:
28.6
Step-by-step explanation:
12^2+x^2=31^2 solve for x to get 28.6(rounded)
