Answer:
Multiply the bottom equation by -3/2 then add the equations.
Multiply the top equation by-3. then add the equations
Step-by-step explanation:
Given the simultaneous equation
2x- 6y=6 ... 1
6x - 4y = 2 ... 2
To eliminate a variable, we have to make the coefficient of one of the variable to be the same.
Multiply equastion 1 by -3
-6x+18y= -18
6x - 4y = 2
Add the result:
-6x + 6x + 18y-4y = -18+2
18y-4y = -18+2
14y = -18
y = -9/7
Another way is to Multiply the bottom equation by -3/2 then add the equations.
Multiplying equation 2 by -3/2 will give;
6x(-3/2) - 4y(-3/2) = 2(-3/2)
-9x + 6y = -3
Add to equation 1;
2x- 6y=6
-9x + 2x + 0 = -3+6
-7x = 3
x = -3/7
Hence the correct two options are;
Multiply the bottom equation by -3/2 then add the equations.
Multiply the top equation by-3. then add the equations
PLEASE HELP!! WILL GIVE BRAINLEST ANSWERS
Answer:
4th one
Step-by-step explanation:
it is the 4th one
2 dot plots. The highlands have a mean rainfall of 15.27 millimeters, and the Lowlands have a mean rainfall of 12.05 millimeters.
Analyze the dot plots. What is the approximate difference between the means of the two data sets to the nearest whole number?
Answer:
it's 3mm
I hope this helped
Answer:
the answer is 3mm
Step-by-step explanation:
i did the answer and got it correct
Question 5
1 pts
5) If a person runs 1/3 mile in 1/9 of an hour, what is
the unit rate per hour?
A. 1/9 mi/hr
B. 1/3 mi/hr
C. 3 mi/hr
D. 9 mi/hr
write in slope intercept form an equation of the line
(1, 2); m = -2
The product of two positive consecutive integers is 12. Find the
integers. *
Answer:
3, 4
Step-by-step explanation:
The choices for the consecutive integers are: 6, 7, 4, 5 or 3, 4
Test the products of these integers.
6 x 7 = 42
4 x 5 = 20
3 x 4 = 12
The only pair of consecutive integers with 12 as their products is 3 and 4.
Solve for x.
3(x - 4) = 2x + 6
ΟΑ. Ο
B. 2
C. 3.6
D. 10
E. 18
Answer:
the answer is D. 10
Step-by-step explanation:
you get 3x -4 = 2x +6
you then subtract 2x from 3x and 2x
you get 1x - 4= 6
add 4 to both sides and you get
1x = 10 which is the same as x = 10
Answer:
x = 18
Step-by-step explanation:
3(x-4) = 2x+6
3x-12 = 2x +6
Add 12 to the -12 and the 6, giving you...
3x = 2x + 18
subtract 2 from the 3 and the 2, giving you...
1x = 18
divide the 1 and the 18 by 1, giving you...
x = 18
I hope this helps you out!
helpppppppppppppppppppppppppppp
Answer: i know p4 but what does the first q say?
Step-by-step explanation:
Answer:
2nd one
Step-by-step explanation:
help pls i have 3 tests to do and this is due today
Answer:
The sum of any triangle is 180 degrees.
Step-by-step explanation:
Answer:
a = 60
b = 60
c = 60
d = 42
e=35
f=35
g=55
h=45
i=45
j=15
k=15
l=75
m=120
n=21
o=69
p=21
q=55
r=55
s=42
t=42
u=69
Step-by-step explanation:
1. Write a system of equations to describe the situation. Then solve the system. Be sure to define your variables! Rizzo has $1.50 less in his piggy bank than his sister Shonda. If Shonda had $9 more, she would have three times as much money as Rizzo. How much money do each of the children have in their banks?
Answer:
The amount Rizzo has = x = $5.25
The amount Shonda has = y = $6.75
Step-by-step explanation:
Let us represent:
The amount Rizzo has = x
The amount Shonda has = y
Rizzo has $1.50 less in his piggy bank than his sister Shonda.
x = y - 1.50.......Equation 1
If Shonda had $9 more, she would have three times as much money as Rizzo.
y + 9 = 3(x)
y + 9 = 3x..... Equation 2
y = 3x - 9
We substitute 3x - 9 for y in Equation 1
x = y - 1.50.......Equation 1
x = 3x - 9 - 1.50
9 + 1.50 = 3x - x
10.50 = 2x
x = 10.50/2
x = $5.25
Solving for y
y = 3x - 9
y = 3(5.25) - 9
y = $6.75
Therefore:
The amount Rizzo has = x = $5.25
The amount Shonda has = y = $6.75
Solve For X
please help, thank you :}
Answer:
4
Step-by-step explanation:
Samantha says the fraction of the group of customers who ordered raspberry topping is 1/2. Explain why samantha is correct.
Answer and explanation:
Yes Samantha is correct. Samantha is correct because a fraction 1/2 of customers who ordered raspberry toppings refers to half of the total number of customers. A fraction 1/2 is 50 percent or 50/100 of the population of customers, therefore meaning that 50% or half of the total number of group of customers ordered raspberry toppings
Can someone help me please, ill give brainy
Answer:
x = -6
Step-by-step explanation:
The value of x never changes, no matter what the value of y is, so x = -6 describes every point on the line.
Alex paid $6 for renting a movie for 3 days. Which graph shows the relationship between the cost of renting the movie for different days
Answer:The graph will show that on 0 days it costs 0 dollars. On day 1,2, and 3 it will be $6
Step-by-step explanation:I hope this helps! Have a great day
A circle has an area of 1017.87602. What is the diameter? (round to the nearest whole number)
Answer:
The diameter is 36.
Step-by-step explanation:
Find the next two numbers in the number pattern.
6, 12, 9, 18, 15,
Answer:
30
Step-by-step explanation:
Starting number is 6, doubled, then returned to original number and added 3, then 6, then so on. Next set of numbers would be:
30, 24, 48, 38...
Three vertices of quadrilateral ABCD are A(-4,3), B(-1,5), and D(4,-1), as shown below.
In order for ABCD to be a parallelogram, what must be the coordinates of point C?
A. (-1, -7)
B. (1.5, 2)
C. (2, -4)
D. (7, 1)
Answer:
my answer is letter c thats may answer
Kane is training for a Marathon. He starts by eunning 2 miles during every yriang sessiom. Each week plans to increase the distance of his run 1/4 mile
Question:
Write and expression to show the distance Kane runs in a training session after w weeks
Answer:
[tex]d = 2 + \frac{1}{4}w[/tex]
Step-by-step explanation:
Given
[tex]Initial = 2\ miles[/tex]
[tex]Rate= \frac{1}{4}[/tex]
Required
Write an expression
Let the distance covered in w weeks be d.
The expression for d is derived by:
[tex]d = Initial + Rate * w[/tex]
Substitute values for Initial and Rate
[tex]d = 2 + \frac{1}{4}* w[/tex]
[tex]d = 2 + \frac{1}{4}w[/tex]
3 1
(3.0 x 10 ) (5.0 x 10 ) = ?
Answer:
1500
Step-by-step explanation:
Parenthesis first, 3x10 is 30 5x10 is 50, 50x30 is 1500
How do I solve this problem? Please show me!
9514 1404 393
Answer:
arc AB = 12.4 cm
Step-by-step explanation:
The length of arc AB is 1/4 of the circumference of the circle, so is ...
AB = (1/4)(2πr)
= (π/2)r = (3.14/2)(7.9 cm) = 12.403 cm
Rounded to the nearest tenth, arc AB = 12.4 cm.
Sarah bought a car for $3500 and later sold it for
a 30% profit. How much profit did Sarah make in
the car?
Answer: 10
Step-by-step explanation:
budda dawg
A physical therapy student is adding up the cost of books for the first three semesters of school. The first semester he spent $400, the second semester he spent $515, and the third semester he spent $620. What on average has he spent on books per year?
Answer:
Im not sure but i think 1535
Step-by-step explanation:
Explain please I’m stuck
FYI - the length of the mid-segment of a trapezoid is equal to half the sum of the lengths of its bases.
the equation:
18 + 6x - 12 = 2(2x + 10)
18 + 6x - 12 = 4x + 20
6 + 6x = 4x + 20
6x = 4x + 14
2x = 14
x = 7
PLEASE HELP DUE TMRW!!
Which number represents an integer?
A.1.2
B.-.4
C.-3.45
d.1/2
The formula for the perimeter (P) of a rectangle is
P= 21 + 2w, where / represents the length and w represents
the width. What is the perimeter ofa rectangle that has a length of 68 centimeters and a width of 19 centimeters?
Answer:
174
Step-by-step explanation:
L = 68
W=19
Use the formula given:
2 x 68 + 2 x 19 = 174
7x+12=x<6 solve to find x
PEDRO QUIERE SABER CUÁNTO PAPEL DE REGALO TENDRÍA QUE USAR PARA PODER FORRAR UNA CAJA CUADRADA DE 30 cm POR LADO.
Can someone please help me with this question?
Answer:
Pretty sure added to
Step-by-step explanation:
The reason why it is added to because the plus sign adds stuff and it doesn't subtract, multiply, or divide.
Hope this helped!! :)
Brainliest?!?!
PLEASE ANSWER I WILL GIVE YOU BRAINIEST IF CORRECT!!!!!!!
thanks!
Answer:
700 is your answer
Step-by-step explanation:
ok so 5x120=600 +100=700 so 700 is your answer
A map has the scale 2 inches equals 190 miles. The distance from Springfield to Glenview is 14 inches. How many actual miles separate Springfield from Glenview?
A.
140
B.
2,800
C.
1,330
D.
38
Answer:
It would be C because
Step-by-step explanation:
2= 190
So what i did was i divide 190 to 2 and i got 95
and to the 14 I multiply it o 95 and i got 1,330
How i got 1,330 is that i read the question and looked at the answers which is a bigger number. So i thought it ain't adding or subtracting. So i decided to do dividing 190/2= 95 then i multiplied 14 to 95
Ms Jackson want to rent an oversize truck for a week. It will cost a weekly fee plus $0.90 per mile driven. Let m= the number of miles Me Jackson drives during the week.
Answer:
Step-by-step explanation:
In order to calculate the total amount that Ms. Jackson will need to pay for renting we need to multiply the number of miles that she will drive by the price per mile driven. Once we have that product we can simply add the weekly fee (w) to it which will give us the total (T) amount that Ms. Jackson will have to pay for her trip. This can all be combined into the following formula.
T = w + 0.90m
