Using elimination (add or sub) find the solution to the following system of equations 5x+ 3y=9 2x -3y=5
Answers
2x-3y=5
5x+2x=9+5
7x=14
14/7x= 2
x=2
sub it in so you get y
5(2)+3y=9
10+3y=9 (-10 to get rid of it)
3y=-1
3y/-1= - 1/3
x= 2 y= - 1/3
Related Questions
4x - 6 = 30 can you solve it
Answers
Answer:
x = 9
Step-by-step explanation:
take -6 to the other side so you add it to 30 = 36
equation is now 4x = 36
divide 4/4 and 36/4
x = 9
the solution to the equation 4x - 6 = 30 is x = 9
To solve the equation 4x - 6 = 30 and find the value of x, we can follow these steps:
1. Begin by isolating the term with the variable on one side of the equation. In this case, we want to isolate the 4x term. Add 6 to both sides of the equation:
4x - 6 + 6 = 30 + 6
4x = 36
2. To solve for x, divide both sides of the equation by 4:
(4x) / 4 = 36 / 4
x = 9
Therefore, the solution to the equation 4x - 6 = 30 is x = 9. When we substitute x with 9 in the equation, we have 4(9) - 6, which indeed equals 30. Thus, x = 9 satisfies the equation, and it represents the value that makes the equation true.
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7. Solve x/2 +4=-2 *
12
0-12
-3
Answers
Answer:x=-12
Step-by-step explanation:
x/2+4=-2
Subtract 4 from each side
x/2=-6
Multiply each side by 2
x=-12
Answer:
X = -12
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
which triangle is congruent to the triangle with vertices (2,-2), (7,10) and (4,6) ?
Answers
Answer:
Ion know what you mean
Step-by-step explanation:
Recognize functions from graphs, yes or no
Answers
Answer:
If your asking whether the graph shown is a function or not the answer is yes it is a function.
Step-by-step explanation:
There is a test called the vertical line test that states if you can draw a vertical line anywhere on the graph and it only passes through one point then the graph represents a function.
If a hexagon represents 1 whole what does 1 triangle represent?
Answers
Answer:
If the hexagon represents 1 whole, then a triangle must represent , because 6 triangles make 1 hexagon. We can use the triangle to represent the in the problem. Twelve triangles make 2 hexagons, which means there are 12 groups of in 2.
Answer:If the hexagon represents 1 whole, then a triangle must represent , because 6 triangles make 1 hexagon. We can use the triangle to represent the in the problem. Twelve triangles make 2 hexagons, which means there are 12 groups of in 2.
Step-by-step explanation:
PLEASE HELP WILL GIVE BRAINLIEST
| -10 - (25) | Determine the value of the expression. My teacher said something about absolute value
Answers
Answer:
35
Step-by-step explanation:
|-10-(25)|=|-10-25|=|-35|=35
-10-25 would equal -35 but since you’re finding the absolute value it would change it to a positive 35:)
remember the absolute value is the distance of the number from zero on a number line, therefore it is always positive
Write an equation of the line with a slope of -3 and y-intercept of 0.
y=
Answers
Answer:
y=5$
Step-by-step explanation:
Yolanda found that her hair
grows .59 inches per month. It
started out at 7.5 inches long,
and she let it grow for 5 months.
Then, she cut 3.4 inches off. How
long is her hair now?
|86
Answers
Answer:
7.05 inches
Step-by-step explanation:
h=7.5+.59(5)-3.4
h=7.5+2.95-3.4
h=10.45-3.4
h=7.05
Of the girls on the Alden Middle School soccer team, % also play on a travel team. How many of the girls on the middle school team also play on a travel team?
Answers
Answer:
The question is incomplete, so I looked for similar ones and found:
Of the 25 girls on the Alden Middle School soccer team, 40% also play on a travel team. How many of the girls on the middle school team also play on a travel team?
we can solve this the following way:
25 girls on the soccer team x 40% that play on a travel team = 10 girls form the soccer team that play on a travel team
we can also multiply (25 girls x 40) / 100 = 10 girls
we can check our work by:
10 girls / 40% = 25 girls in total
Which of the following could be the equation for a parabola that opens down
with vertex (-11, -28)?
A. x=-5(y + 28)2 - 11
B. y= -5(x +11)2 - 28
C. X= 5(y +11)2 - 28
D. y = 5(x+28)2 - 11
Answers
Answer:
B.
Step-by-step explanation:
the negative 5 means that the parabola will open down. the positive 11 in the parentheses is graphed as a negative 11 and the negative 28 stays the same.
What is the slip of the line?
Answers
Answer:
slope m = 2
Step-by-step explanation:
to find the slope you have to pick two points in the line
(x1,y1) = (2,1)
(x2,y2) = (3,3)
And the equation for slope is
m = (y2-y1)/(x2-x1)
m = (3 - 1) / (3-2) = 2
Bobby Jean works for a sign making company. She earns $25 for each sign she designs that is chosen for distribution. Last week she designed 25 signs, but only 20 were chosen for distribution. How much money did she earn last week for her designs?
Answers
Answer:
500
Step-by-step explanation:
25*20= 500 because only 20 were chosen
Answer:
500$
Step-by-step explanation:
Each sign that is chosen is worth 25$
they chose 20 signs so
25$ x 20 = 500$
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
What does Z equal? Anyone know please help
Answers
Answer:
A z-score equal to 0 represents an element equal to the mean. ... A z-score equal to -1 represents an element that is 1 standard deviation less than the mean; a z-score equal to -2, 2 standard deviations less than the mean; etc.
Answer:
z=60 degrees
Step-by-step explanation:
Both triangles are similar which means their angles are the same but their sides/ legs aren't.
65+55=120
180-120=60
Length: 3
Width: 4+b
Answers
Answer:
18
Step-by-step explanation:
NEED HELP ASAP!!!!!!!!!!!!!!!!!!
Answers
Answer:
I dont. understannnnd
The two _______ compared in a ratio are called ______
Answers
A rope tied from a tent pole to a take in the ground forms 55 degrees angle with the ground. The pole is 3 feet from the stake, what is the length of the rope to the nearest tenth of a foot
Answers
Given:
A rope tied from a tent pole to a stake in the ground forms 55 degrees angle with the ground.
The pole is 3 feet from the stake.
To find:
The length of the rope to the nearest tenth of a foot.
Solution:
First draw a diagram according to the given information as shown below.
We know that, in a right angled triangle,
[tex]\cos \theta = \dfrac{Base}{Hypotenuse}[/tex]
In triangle ABC,
[tex]\cos 55^\circ=\dfrac{BC}{AC}[/tex]
[tex]0.573576=\dfrac{3}{AC}[/tex]
[tex]AC=\dfrac{3}{0.573576}[/tex]
[tex]AC=5.23034[/tex]
[tex]AC\approx 5.2[/tex]
Therefore, the length of the rope is 5.2 foot.
Smart Answers Please. Help is Required! Will give you 60 Points!
1. What is the y-intercept of the line of best fit?
2. What is the slope of the line of best fit for this scatter plot?
3. What is the equation of the line of best fit?
Answers
Answer:
1. 8
2. (5,8)
Step-by-step explanation:
Hope this helps
A penny is 5% of a dollar. true or false please help
Answers
Answer:
no its only 1%
Step-by-step explanation:
Answer:
false
Step-by-step explanation:
its 1% of a dollar since a dollar is worth 100 pennies
Which of these strategies would eliminate a variable in the system of equations?
23 - 5y = 13
- 3x + 2y = 13
Choose all answers that apply:
A. Subtract the bottom equation from the top equation.
B. Multiply the top equation by 3. multiply the bottom equation by 2. then add the equations.
C. Multiply the top equation by 2, multiply the bottom equation by 3, then add the equations
Answers
Answer: Multiply the top equation by , multiply 3 the bottom equation by 2, then add the equations.
Step-by-step explanation:
6x - 15y = 39
+ (- 6x + 4y) + (26)
- 11y = 65
A newly planted tree will be secured by wires, each attached to the ground 1.5 meters from the base of the tree. If each wire is 4 meters long, how high up the tree should each wire be attached, to the nearest tenth of a meter?
Answers
Answer:
3.7m
Step-by-step explanation:
The set up will form of right angled triangle with;
the length of the wires (the hypotenuse) = 4m
The base of the tree from the wire (adjacent) = 1.5m
The height of the tree(opposite ) = x
According to pythagoras theorem;
hyp² = opp²+adj²
4² = x²+1.5²
16 = x²+2.25
x² = 16 - 2.25
x² = 13.75
x = √13.75
x = 3.708
Hence the tree is 3.7m high (to the nearest tenth)
What is the value of x?
55
105
*
O A. 50°
O B. 55°
O C. 20°
O D. 160°
Answers
Answer:
A50
Step-by-step explanation:
all angles should add up to 180
Answer:
I'm pretty sure it's A.
what's 1.5 :- 56
[tex] \div 52[/tex]
Answers
Merry Christmas
Shannon's hair is 12 inches long and grows 0.25 inches per month. Write an equation that y is the length of her hair after x months. Interpret the slope.
Answers
Answer:
y= 12 + 0.25x
The slope would be 0.25 or 1/4 because the slope is ALWAYS the number that is next to X. I hope this helps!!!
PMO and LMN are vertical angles. The measure of PMO is (X + 7). The measure of LMN is 55
1. What is the value of x? kwrite a number only)
2. The measure of PMO IS (Write a number only.)
Answers
Answer:
x= 48 and PMO= 55
Step-by-step explanation:
PMO= LMO so 55= x+7
x+7=55
-7 -7
x=48
Pmo = x+7 so (48)+7 = 55
Ms. Ford is buying bundles of virgin hair from She’s Happy Hair that costs $75 per bundle, but $42.50 for shipping. If Ms. Ford spent $567.50 total, how many bundles of virgin hair did she buy?
Answers
Answer: 7 bundles.
Step-by-step explanation:
The cost per bundle is $75.
The cost for shipping is $42.50
She spent $567.50 in total.
The shipping is paid only one time, as all the bundles can be packaged togheter.
Then after paying the shipping, the left spent is:
$567.50 - $42.50 = $525
And each bundle costs $75, then the number of bundles that she bought will be equal to the number of times that we have $75 in $525. This is equal to the quotient between $525 and $75.
N = $525/$75 = 7
She bought 7 bundles
Find the perimeter of the trapezoid.
A)18 cm
B)28 cm
C)34 cm
D)36 cm
E)40 cm
Answers
Answer:
C) 34 cm
Step-by-step explanation:
To calculate the perimeter we add all side lengths.
please help me out...
Answers
Answer:
Comunitive
Step-by-step explanation:
Answer:
The answer is Distributive Property
Step by Step:
Your given equation is 7(w+6)+4
You are distributing 7 to w to get 7w, and 7 to 6, to get 42. The plus 4 stays the same because you don't have anything to distribute.
Addition, is obviously wrong, does 7 + 6 = 42? Multiplication is wrong. Sure you might be multiplying, but you are distributing to both numbers. And Commutative is DEFINITY wrong, because it has nothing to do with this situation
:D
What is the quotient when 22,464 is divided by 72?
Answers
Answer:
312
Step-by-step explanation:
I DONT KNOW WHAT TO DO I NEED HELP
Answers
Answer:
1) B
2)A
3)B
Step-by-step explanation: