Solve the system of equations. y=-3x+4 -4x+y=-10
Answer:
Step-by-step explanation:
In this particular case we have the following system of equations:
y
=
−
3
x
+
4
[
E
q
.
1
]
x
+
4
y
=
−
6
[
E
q
.
2
]
Substituting
[
E
q
.
1
]
in
[
E
q
.
2
]
:
x
+
4
(
−
3
x
+
4
)
=
−
6
Applying the distributive property on the left side:
x
−
12
x
+
16
=
−
6
Simplifying
:
−
11
x
=
−
22
Solving for
y
:
x
=
−
22
−
11
=
2
Substituting
x
=
2
in
[
E
q
.
1
]
:
y
=
−
3
(
2
)
+
4
=
−
2
Therefore
, the solutions are
x
=
2
and
y
=
−
2
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[tex]y = - 3x + 4[/tex]
Add sides 3x
[tex]y + 3x = 3x - 3x + 4[/tex]
[tex]3x + y = 4[/tex]
_________________________________
[tex]1) \: 3x + y = 4[/tex]
[tex]2) \: - 4x + y = - 10[/tex]
Multiply sides of the (( equation 2 )) by - 1
[tex]1) \: 3x + y = 4[/tex]
[tex]2) \: 4x - y = 10[/tex]
Add up equations
[tex]3x + 4x + y - y = 4 + 10[/tex]
[tex]7x = 14[/tex]
Divide sides by 7
[tex] \frac{7x}{7} = \frac{14}{7} \\ [/tex]
[tex]x = 2[/tex]
Put the value of x in one of the (1) or (2) equations to find the value of y .
I put it in equation 1 :
[tex]3x + y = 4[/tex]
[tex]3(2) + y = 4[/tex]
[tex]6 + y = 4[/tex]
[tex]y + 6 = 4[/tex]
Subtract sides 6
[tex]y + 6 - 6 = 4 - 6[/tex]
[tex]y = - 2[/tex]
And we're done...
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
7(1 - x) = -3(x - 2)
Answer:
the answer is x= 1/4 :D .....
Answer: bro its x=1 over 4
Step-by-step explanation:
Can U solve this?!
No Improper answers!
Answer: The answer is 1.
Step-by-step explanation: 5 attached images to this equation for step by step.
is 0.5 or 17/34 greater
Answer:
They're equal; 17/34 as a decimal is 0.5
Step-by-step explanation:
Hope this helped, Have a Great Day!!
Answer:
17/34 is actually equal to 0.5. So since your comparing it to the decimal o.5 they are both equal to each other (:
Step-by-step explanation:
Thank you for your timeeee
Let x be a multiple of 3
If the sum of three consecutive multiples of 3 is 99, write down without simplifying an equation in terms of x.
Answer:
y=mx+b
Step-by-step explanation:
What is the answers to
Answer: -4/3= -1.3 repeating
Step-by-step explanation:
6g-9+5-3g -9+5= -4 6g-3g= 3g 3g/3 cancels out. -4/3= -1.3 repeating
The graph shows the distances traveled by two cars over several hours.
Which car is moving at a faster rate?
Answer:
Car b
Step-by-step explanation:
It has gone a farther distance in a shorter amount of time.
Answer: car B
Step-by-step explanation: The graph shows two sides time and distance you can see car B is further on the graph by time and distance car A traveled a shorter distance.
1. What is the volume of the cylinder below? Do not include the in
10 in.
30 in.
what is the correct here??
Answer:
There is no mistake.
Based on what you see here, what is the domain of this function?*
Your answer
This is a required question
Answer:
Domain seems to be all real numbers.
Step-by-step explanation:
1.A chef has 5 1/2 pounds of chicken. He uses 4/5 of the chicken to make enchiladas. How many pounds of chicken did the chef use to make enchiladas?
2. If 6 people evenly share 3/4 of a cake, what fraction of the whole cake does each person get?
Please help is for a test and I will give the brainliest
3. Write an equation in point-slope form that describes the line with a slope of 2 that contains the point (4,-3)?
Answer:
y + 3 = 2 (x - 4)
Step-by-step explanation:
y - y₁ = m (x - x₁)
substitute (4, -3) in for (x₁, y₁)
y - (-3) = m (x - 4)
substitute the slope (2) in for m (m=slope) and simplify (y - (-3)) to (y +3) because subtracting a negative is the same as adding a positive
y + 3 = 2 (x - 4)
and that's your final answer! hope this helped :)
HELP ASAP!!!!
Find the slope of each side of the quadrilateral. What is the slope for BC, CD, etc?
When you enter your answer, clearly indicate the side length. (For example, BC =
20 units). If you don't clearly identify the side, you will not get credit *
Answer:
Step-by-step explanation:help me
TWO MOVES TO FIT IN THE CLEAR SHAPE
Answer:
Answer:Move right twice
A dog groomer wants to gather information about how often dog owners have their dogs groomed. She decides to take
a sample from her local veterinarian's office, which provides an alphabetized list of all clients who bring in dogs. The
dog groomer randomly selects one of the first 10 clients, and calls that client and every 10th client after that on the list
to inquire about dog-grooming habits. What kind of sample is this?
Answer:
a systematic random sample
What is the percent of change from 5 to 9?
Hey there! It would be 44% decrease...
Explanation:
So we know that 9 would be 100%. So what is the percent of change?
So let divide 5 with 9. 5 divide 9 would be 0.56.
Great, now we can subtract 100 with 0.56 since we know that 56% is 5. 100-56 is 44. This means that the percent decrease would be 44%.
Final Result: 44%
The percent change from 5 to 9 is 80%.
What is percentage?Percentage is a measurement to find the value of a given number out of hundred.
Given that,
The original number is 5.
The number changes to 9 .
Increase in number = 9-5 = 4
The percentage change = 4/5×100 = 400/5 = 80%
The percentage change is 80% from 5 to 9.
To learn more on Percentage:
https://brainly.com/question/24120406
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Hey. My teacher asked for homework we review the order of operations. What are they?
What does PEMDAS stand for. I feel so dumb we learned this In like 5th grade “
Answer:
Order of operations are the rules that state the sequence in which the multiple operations in an expression should be solved.
PEMDAS Stands for
P: parentheses ( )
E: exponent a²
M: multiplication ×
D: division ÷
A: addition +
S: subtraction -
Answer:
parenthesis, exponents, multiplication, division, addition, subtraction
Step-by-step explanation:
Which relation is linear?(click all that apply)
You decide to erect A statue of yourself in your homeroom class is 10.25 feet tall fire code forces you to leave 1.5 feet of space between your statue and the ceiling write equality showing the possible height of your statue
The ratio of students to adults in a community band is 47to53 what percent of the marching band is students
[tex]\huge\underline{\overline{\mid{\bold{\red{ANSWER}}\mid}}}[/tex]
The ratio of students to adults in a community band = 47:53
47+53 = 100
ratio of students = 47
[tex]47 \times \frac{100}{100} = 47\%[/tex]
Hence, 47 % of the marching band is students.
There are 80 tickets in a bag and the ratio of winning tickets to losing tickets is 2 : 8. How many of each kind of ticket are in the bag?
Given:
Total number of tickets = 80
Ratio of winning tickets to losing tickets is 2 : 8.
To find:
The number of tickets of each kind in the bag.
Solution:
Let the number of winning and losing tickets are 2x and 8x respectively.
Total number of tickets = 80
[tex]2x+8x=80[/tex]
[tex]10x=80[/tex]
Divide both sides by 10.
[tex]x=\dfrac{80}{10}[/tex]
[tex]x=8[/tex]
Now,
Winning tickets : [tex]2(8)=16[/tex]
Losing tickets : [tex]8(8)=64[/tex]
Therefore, the winning and losing tickets are 16 and 64 respectively.
Andy wanted to make a poster of the photograph at the right with the
measurements by using a scale 1 to 100.
1) Find the measurements of the poster?
8.25 3.25
Answer:
2
Step-by-step explanation:
A park contains 210 trees on 40 acres. What is rate of trees per acre at the park?
Answer:
the answer would be 210:40
Step-by-step explanation:
What system of inequalities is shown in the graph?
A. x 2x + 3
B. x 3x + 2
C. x ≤ −1 and y ≤ −0.4x + 2
D. x ≤ −1 and y ≤ −2x + 2
Hurryyy Plzzz!!
A.) Side - Side - Side
B.) Side - Angle - Side
C.) Angle - Side - Angle
D.) Angle - Angle - Side
E.) Hypotenuse - Leg
F.) Not enough information.
x-2y=8 in y=mx+b please help me
Answer:
[tex]y \frac{1}{2}x - 4 [/tex]
Solve the following equation for y. Hint: Get y alone on one side of the equation.
4x + 2y = 4
A.
y = -2x + 2
B.
y = -4x - 4
C.
y = 2x + 2
D.
y = x - 1
Answer:
y = 2 - 2x
Step-by-step explanation:
Answer:
A. y = -2x + 2
Step-by-step explanation:
4x + 2y = 4
Move 4x to the other side of the equation.
2y = 4 - 4x
Divide the whole thing by 2 to get y by itself.
y = 2 - 2x
which can also be written as
y = -2x + 2
Hope this helps! :)
Joshua tells his friends that for there to be snow it has to be 32o F. He uses his thermometer outside and sees snow. He finds it is only is 34oF. What is his percent error? (Round to the nearest tenth)
Answer: Percentage error = -5.9%
Step-by-step explanation:
Step 1
Percentage error =Approximate Value − theoretical Value / Theoretical value × 100%
or
Percentage error = Assumed number - Result number / Result number x 100
Given Assumed number / Approximate Value= 32o F
Result number/ Theoretical value= 34o F.
Step 2---
Percentage error = (32 - 34)/ 34 x 100
= - 2/34 x 100
= - 5.88%
Joshua was in error by - 5.88 % which when rounded to nearest tenth gives - 5.9%.
Please help what is the slope of the line through each pair of points
(-4,-7), (19,11)
Answer:
3/4
Step-by-step explanation:
m=y2-y1/x2-x1
11-(-7)=18
19-(-4)=23
18/23
18/23 in simplest form is 3/4
hope this helps :3
if it did pls mark brainliest
Answer:18/23
Step-by-step explanation:
m=y1-y2/x1-x2+b
At Pizza pizzazz the cost of a square pizza depends on the total square inches. A small
Pizza is 5 inches on each side and cost four dollars plus $0.05 per square inch. A medium pizza is 8 inches on each side and cost $3.50 plus $0.04 per square inch. What is the difference in price between a small pizza and a medium pizza?
Answer:
The difference in price between a small pizza and a medium pizza is $0.81
Step-by-step explanation:
Small pizza
Side = 5inch
Area = 25 sq.in
Cost = $4 +0.04*25
= 4 + 1.25 = $5.25
Medium pizza
Side = 8inche
Area = 64 sq.in
Cost = 3.50 + 0.04*64 = $6.06
Difference = Medium pizza - small pizza
= 6.06 - 5.25
= $0.81