Answer:
(- 2, 3 )
Step-by-step explanation:
Given the 2 equations
4x + 3y = 1 → (1)
x - 3y = - 11 → (2)
Adding the 2 equations term by term will eliminate the y- term
5x + 0 = - 10
5x = - 10 ( divide both sides by 5 )
x = - 2
Substitute x = - 2 into either of the 2 equations and solve for y
Substituting into (1)
4(- 2) + 3y = 1
- 8 + 3y = 1 ( add 8 to both sides )
3y = 9 ( divide both sides by 3 )
y = 3
solution is (2, - 3 )
Answer:
x=-2, y=3
Step-by-step explanation:
4x + 3y = 1.......... Equ 1
x - 3y = -11...........Equ 2
5x=-10
x=-2
From equ 1
4x + 3y =1
4(-2)+3y=1
-8+3y=1
3y=1+8
3y=9
y=3
How do I do this? Cause I don’t know how. Also please show work. Don’t only say the answer. Whoever shows the work and answer gets a thanks and a brainliest.
What do you need to do to solve the problem?
3 = -x/5
O Multiply each side by 5
O Multiply each side by - 5
O Multiply each side by 1/5
O Multiply each side by -1/5
Answer:
multiply each side by -5
help!! :( what is the equation for this circle using the center and radius?
Answer:
Well Circumference = πr^2, but I don't know what you're asking for?
Write the equation of a parabola in factored form if the x-intercepts are (3,0) and (-5,0) with a maximum point at ( -1,8)
Answer:
y = - [tex]\frac{1}{2}[/tex] (x - 3)(x + 5)
Step-by-step explanation:
Given the x- intercepts are x = 3 and x = - 5 then the corresponding factors are
(x - 3) and (x + 5)
The equation is the the product of the factors, that is
y = a(x - 3)(x + 5) ← a is a multiplier
To find a substitute (- 1, 8) into the equation
8 = a(- 1 - 3)(- 1 + 5) = a(- 4)(4) = - 16a ( divide both sides by - 16 )
- [tex]\frac{1}{2}[/tex] = a
Then
y = - [tex]\frac{1}{2}[/tex] (x - 3)(x + 5) ← in factored form
Pleaseee helppp answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!
Answer:
XT and XW
Step-by-step explanation:
They are indicated congruent by the congruency marks on each.
Can someone help me, please I need help with this thing
Answer:
9
Step-by-step explanation:
if LA = AK then the triangle is isosceles
if the two triangles are similar then we can use this proportion to find LA:
8/12 = 6/LA
cross-multiply:
8·LA = 72
LA = 9
Hydrate sports drink calls for 7 scoops for every gallon of water. Sarah thinks the drink is too weak, and she wants to change it. Describe how she can change either the number of scoops or the amount of water to make the drink stronger.
Match the following expression 12(x-3)+18=4(3x-3) with the number of solutions below.
A.One solution?
B.No solution ?
Or
C.All solution?
Answer:
No Solution.
Step-by-step explanation:
12(x-3)+18=4(3x-3)
12x-36+18=12x-12
12x-12x-18=-12
-18=-12
no solution
Evaluate the following with each given number.
f(x)=7x−x2+2
Find the slope of the line containing the points (2,-4) and (5,3)
Answer:
m = [tex]\frac{7}{3}[/tex]
Step-by-step explanation:
Answer:
7/3
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(3-(-4))/(5-2)
m=(3+4)/3
m=7/3
Malala is following this recipe for bread rolls.
She uses 200 g of flour.
How much of each of the other ingredients does she use?
Recipe: Makes 15 bread rolls
500 g flour
10 g salt
8 g yeast
30 mL oil
350 mL water
Answer:
She will use:
4g salt
3.2g yeast
12 ml oil
140 ml water
Step-by-step explanation:
Since 200 is 40% of 500 we calculate 40% of all the other ingredients and you get your answer
Help me please I need to get a perfect score.
Answer: 5r-5s
Step-by-step explanation:
Hope this helps :)
Quadrilateral RUST has a vertex at R(3,5).
U
S
What are the coordinates of R'after a dilation by a scale factor of 3, centered
at the origin, followed by the translation (x, y) - (x, y + 3)?
Answer:B
Step-by-step explanation:AP3X
G
H
2.5(JK)
12
к
L
F
What is HL?
=================================================================
Work Shown:
The diagram shows that JK = 12 and GF = 2.5*(JK) = 2.5*12 = 30
The midsegment HL will be the average of the two lengths it is parallel to.
We'll add up the values and then cut the result in half
HL = (JK+GF)/2
HL = (12+30)/2
HL = 42/2
HL = 21
PLS HELP
How many solutions does this system of equations have?
y= -6x-7
y=-6x-7
Answer:
They can have infineyely many solutions :)
8th grade math, please help.
Answer:
∠x = 16°
Step-by-step explanation:
∠x = 180° - (180° - 16°) = 16°
Answer:
16° because alternative exterior angles are equal
What is the percent saved on a pair of sun glasses with a regular price of $15.95 which are on sale for $13.56?
Answer:
15%
Step-by-step explanation:
15% of 15.95 is 2.39, which if we subtract from 15.95 we get 13.56
Could I please have Brainliest? Hope this helps! :)
Answer:
100%->15.95
1%->0.1595
15.95-13.56= 2.39
2.39÷0.1595
≈ 14.98% (corrected to 2 decimal places)
At the football game, 3 hamburgers and 6 soft drinks cost $27, and 3 hamburgers and 3 soft drinks cost $18. Which two equations can be used to determine the price of a hamburger and the price of a soft drink?
Let x represent the cost of a hamburger and y represent the cost of a soft drink.
Answer:
Let be "x" the cost in dollars of a hamburger and "y" the cost in dollars of a soft drink.
The cost of 4 hamburguers can be represented with this expression:
4x4x
And the cost of 6 soft drinks can be represented with this expression:
6y6y
Since the total cost for 4 hamburgers and 6 soft drinks is $34, you can write the following equation:
4x+6y=344x+6y=34 [Equation 1]
The following expression represents the the cost of 3 soft drinks:
3y3y
According to the information given in the exercise, the total cost for 4 hamburgers and 3 soft drinks is $25. Then, the equation that represents this is:
4x+3y=254x+3y=25 [Equation 2]
Therefore, the Equation 1 and the Equation 2 can be used to determine the price of a hamburger and the price of a soft drink
Answer:
3x + 6y = 27
3x + 3y = 18
x = $3, y = $3
Step-by-step explanation:
I will solve by using the elimination method.
3x + 6y = 27
3x + 3y = 18
Subtract top equation by bottom.
3x + 6y = 27
- (3x + 3y = 18)
_____________
0 + 3y = 9
3y = 9
y = 3
Plug y in for three
3x + 6*3 = 27
3x + 18 = 27
3x = 9
x = 3
So, your solution is x = $3, y = $3
Here is a list or numbers. 6,7,2,4,6,6,9,5,3,3
Work out the medium
Work out the mean
Answer:
The medium - 6,6
The mean - 5.1 or 5
Step-by-step explanation:
The medium is the middle number(s)
The mean is when you average the numbers (adding them all up then dividing by how many numbers there are).
Answer: before u do all of this put the number in smallest to biggest the mean is u add all the number then when u get the answer u divide the number by how many numbers are there so 2 + 3+3+4+5+6+6+6+7+9= 51 now 15 divided by 10 =5.1 that is the mean
Now the medium is u put the number in smallest to biggest again 2334566679 now u have to find the numbers that are the same so u see how there is two 3's and three 6's in the numbers right so u have to look very carefully u could put 3 has the answer put that is not the answer because there is only two 3's and there is three 6's so which is bigger two 3's or three 6's three 6's is bigger so that is the answer.
Hoped it helped don't forget to drop a heart !!!
Step-by-step explanation:
What's the greatest ten you can multiply by 8 to get close to, but not go over 629
Answer:
i guss 8× 77 = 524 which is close to it
Answer: 8 x 70 = 560
Lets see if you practiced your division..5,316/3= .Use any place value strategy to divide
hamid has gain weight he now weighs 88kg
Answer: what’s the question?
Step-by-step explanation:
PLEASE SHOW WORK ILL GIVE BRAINLIEST
Answer:
[tex]\frac{9}{20}[/tex] [tex]miles^{2}[/tex]
Step-by-step explanation:
To find the area of a rectangle, use the formula A = l*w, where l is the length and w is the width.
A = [tex]\frac{9}{10}[/tex] x [tex]\frac{1}{2}[/tex] = [tex]\frac{9}{20}[/tex] [tex]miles^{2}[/tex]
A publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes. Each small box can hold 25 books and each large box can hold 50 books. There were 3 more large boxes sent than small boxes, which altogether can hold 450 books. Determine the number of small boxes sent and the number of large boxes sent.
There were ____ small boxes sent and ____ large boxes sent.
Answer:
there were 4 small boxes sent and 7 large boxes sent
Step-by-step explanation:
let s= number of small boxes
let y= number of small boxes
each small box can hold 25 books, so s small boxes can hold 25s books. Each large box can hold 50 books, so l large boxes can hold 50lbooks. Therefore, the total number of books 25s+50l equals 450.
Since there were 3 more large boxes sent than small boxes, if we add 3 to the number of small boxes, we will get the number of large boxes, meaning l equals s+3.
system of equations:
25s+50l=450
l=s+3
substitute values
Ben's Game World is having a sale on video games. The store is offering a sale pack of 4 video games for $43.80. What is the unit price of a video game in the sale pack?
Answer:
Answer:
a) 10.95
b) 76.65
Step-by-step explanation:
To find the unit price of Ben's video games, divide 43.80 by 4, which is equal to 10.95. So, the unit price is 10.95 at Ben's Game World.
Then, using the unit price we found earlier, multiply 10.95 by 7, which will gives us the cost of 7 games at Roberto's Electronics. You'll get 76.65. So, the cost of 7 games at Roberto's Electronics, using the same unit price at Ben's Game World, would be 76.65.
Hope this helps :)
Barnes and Noble pays a publisher $1.50 for a magazine. The magazine is marked-up 12%. Find the new SELLING PRICE of the magazine.
Answer: The selling price will be $1.68
Step-by-step explanation:
If the magazine is marked-up by 12% , then you will multiply 12% by the amount of money then add it to the same amount of money.
1.50 * 12% = 0.18
1.50 + 0.18 = 1.68
please help thank you
What is the slope of the line
HELP I NEED HELP ASAP
Answer:
I think its D
Step-by-step explanation:
You can rule out A and B because he would be able to throw it farther than 30 ft do that leaves C and D but davis Couldn't throw a 9.1 lb ball 30 ft so the answer is D
The line graph shows the amount of snowfall over a 6 hour period.
Between which hours did the least amount of snow fall?
Total Amount of Snow
1411
12
10
Amount of snow (in inches)
Hours
1
2
3
4
5
6
The least amount of snow fell between hours
and
Answer:
12 :)
Step-by-step explanation:
np
Answer:
12 :0
Step-by-step explanation:
