Solve the following system of equations using the substitution method
X=4
[x+ 3y - 10
Solution :
Answers
Answer:
the answer is x5.5
Step-by-step explanation:
Related Questions
please solve and write an equation for the graph answer choices
question 1 rate of change 57 or .75
question 2 ordered pair (44,57) or (57,44)
question 3 equation A y=-1/2x+6
B y=-1/2x+1
C y=-1/2x+10
D y=1/2x+1
please answer every question
Answers
What is the length of AC?
3 ft
4 ft
N
4 ft
M
ОООО
9 ft
9 ft
18 ft
С
Answers
Answer:
the answer is 18 feet because that line in the middle of the triangle is half the size of AC
Amil took $65.00 to go shopping and he bought two pairs of jeans for $27.00 each. How much change will he have ? Choose the expression that is a correct translation of the problem
Answers
Answer:
11.00
Step-by-step explanation:
1. Since he's trying to buy 2 pairs you can multiply 27.00 by 2 or you can just add 27.00+27.00 and will get 54.00
2. Subtract 65.00-54.00
3. and you'll get 11.00
4) What answer choice represents 2,413 in expanded form? *
O a) (2 x 1000) + (4 x 100) + (1 x 10) + (1 x 3)
O b) (2 x 1000) + (4 x 1000)+ (1 x 1000) + (3 x 1000)
c) (2 x 1,000) + (4 x 100) + (1 x 100) + (3 x 1)
d) (2 x 10000) + (4 x 100) + (1 x 10) + (3 x 1)
Answers
Answer:
A
Step-by-step explanation:
Because it is 2,413
Can someone please help me with this?
Answers
Answer:
126
Step-by-step explanation:
To get the answer for this, we're going to make an algebra equation and add every angle to make 360 in total. First, we can just write the equation.
x+(x-35)+(x-46)+1/2x=360
Next, we can simplify this.
3 1/2x-81=360
3.5x-81=360
Add 81 to both sides.
3.5x-81=360
+81 +81
3.5x=441
Divide by 3.5 on both sides.
3.5x=441
/3.5 /3.5
x=126
Each x is 126.
I hope this helps!!! Have an amazing day C:
Note: Figure not drawn to scale
In the circle above, point A is the center and the length of arc BC is 2/5 of the circumference of the circle.
What is the value of x?
Answers
Answer:
The value of x is 144°
Step-by-step explanation:
Let us revise some facts about the circle
The measure of the circle is 360°The length of the circle is 2πr (circumference)If the length of an arc is a/b of the circumference (its length = a/b ×2πr), then the measure of the arc is also a/b of its measure (its measure = a/b × 360°)The measure of any central angle equals the measure of its subtended arcIn the given question
∵ A is the center of the circle
∴ Angle x is a central angle subtended by arc BC
∴ The value of x = the measure of arc BC
∵ The length of the arc BC is 2/5 of the circumference of the circle
∴ The measure of arc BC is 2/5 of the measure of the circle
∵ The measure of the circle = 360°
∴ x = 2/5 × 360°
∴ x = 144°
The value of x is 144°
Which graph I-IV matches with a?
Answers
Answer:
III
Step-by-step explanation:
At t = 0, x = 1.
At t = 0.5, x = 2.
At t = 1, x = 1.
The curve is symmetrical.
The graph that fits is III. x starts at 1, increases 2, then decreases at the same rate back to 1.
A case of single-serving bags of chips contains 8 boxes. Each box contains 10 bags of chips.
A case of chips cost $29.60. What is the unit price for a single bag of chips?
Answers
Answer:
each bag of chips are 0.37 cents
Step-by-step explanation:
1 case =29.60
29.60 divided by 8 (number of boxes in case)=3.70
3.70 divided by 10(number of chip bags in box)=0.37
Therefore each bag of chips = 0.37cents
(28)/(x)*(4)/(5)+1=22
Answers
Answer:
I got -8
Step-by-step explanation:
i googled it but check it just incase
21x40=840, so 21x 42 =
Use mental math
Answers
Answer:
882
Step-by-step explanation:
mental math right ;)
You have $200 in a savings account. Each week for 8 weeks, you take out $18 for spending money. How much money is in your account at the end of 8 weeks? Show your work.
Answers
$56
Explanation:
8 weeks is multiplied by the amount you’re taking out, (144), and that number is then subtracted from your $200 in savings.
Modeling events using random numbers is known as a/an ______.
A. Census
B. Sample survey
C. Simulation
D. Experiment
Answers
Answer:
C. Simulation
Step-by-step explanation:
The answer is Simulation the modeling events using random numbers is known as a simulation option (C) Simulation is correct.
What is a survey?A survey is a means of gathering information from a sample of people using pertinent questions with the goal of understanding populations as a whole.
It is given that:
Modeling events using random numbers is known:
As we know, a simulation recreates random occurrences by specifying event outcomes with relative frequencies that match the real-world relative frequencies we're aiming to simulate using random numbers.
It's called a simulation when you use random numbers to model an event.
Modeling events using random numbers is known as a simulation.
Thus, the answer is Simulation the modeling events using random numbers is known as a simulation option (C) Simulation is correct.
Learn more about the survey here:
brainly.com/question/17373064
#SPJ2
Geometry question, look at picture
Answers
Answer:
152° = w + 73°
=> 152° - 73° = w
=> 79° = w
If my answer helped, please mark me as the brainliest!!
Thank You!!
16 ÷ ( 2/5 + 2/ 3 ).
Answers
Answer:
15
Step-by-step explanation:
16 % (2/5 + 2/3) = 16 % (6/15 + 10/15) = 16 % 16/15 = 16/1 x 15/16 = 240 % 16 = 15
Answer:
15
Step-by-step explanation:
what is 0.7283 written in standard form
Answers
Answer:
0.7283 written
in scientific is: 7.283×10^-1
Step-by-step explanation:
thats what i think but i'm not sure, hope you got it right sweetie!
Answer:
in scientific notation is 7.283×10^-1
Porcent. Word Problems
1) Potor want to his local zoo that featured 28 bird cachibits. If these bird ochibits make up
80% of the zoo's exhibits, then how many exhibits does the zoo have in total? Round your
answer to the nearest whole number if necessary.
Answers
Answer:
There are 35 total exibits.
Step-by-step explanation:
7th grade help me plzz
Answers
Answer: The temperature rose 20 degrees celsius
Step-by-step explanation:
the difference between -10 and 10 is 20.
Answer: 20 degrees Celsius
Step-by-step explanation:
Explanation:it just is do the math
sela
Lines a, b, c, and d intersect as shown.
rpod
covery Education
FARI Montage
R
124
95
42
53
39
95
What is x?
Answers
Hope this helps:D
And this one you need to evaluate it please show your work I need help
Answers
Step-by-step explanation:
-5 + 2 - 8 - (-14) =
(-3) - 8 + 14 =
-11 + 14 =
3 =
not sure but here you go^^
Gillian’s Restaurant has an ice-cream counter where it sells two main products, ice cream and frozen yogurt, each in a variety of flavors. The restaurant makes one order for ice cream and yogurt each week, and the store has enough freezer space for 115 gallons total of both products. A gallon of frozen yogurt costs $0.75 and a gallon of ice cream costs $0.93, and the restaurant budgets $90 each week for these products. The manager estimates that each week the restaurant sells at least twice as much ice cream as frozen yogurt. Profit per gallon of ice cream is $4.15, and profit per gallon of yogurt is $3.60.
Required:
a. Formulate this problem as a linear program. Make sure to clearly define you variables and label your constraints.
b. Solve this model by using graphical analysis.
Answers
Answer:
P=$440Step-by-step explanation:
NOTE: kindly find attached the graphical analysis/solution.
Given the data, we are expected to maximize the profit of Gillian’s Restaurant
let X be icecream
and Y be yogurt
Our objective function is
4.15X+3.6Y=P
Constraints
a. 0.75X+0.93Y<90
b. X+Y<115
c. X>=2Y = X-2Y>=0
X>=0, Y>=0
a. 0.75X+0.93Y=90
X=0
0.75(0)+0.93Y=90
0.93Y=90
Y=90/0.93
Y=96.77
Y=0
0.75X+0.93(0)=90
0.75X=90
X=90/0.75
X=120
b. X+Y<115
X=0
X+Y=115
0+Y=115
Y=115
Y=0
X+0=115
X+0=115
X=115
c. X>=2Y = X-2Y>=0
X=0
X-2Y=0
0+2Y=0
Y=0
Y=0
X-2(0)=0
X+0=0
X=0
From the graph profit is maximum at
X=80 and Y=30
4.15(80)+3.6(30)=P
332+108=P
440=P
P=$440
We are expected to maximize the profit of Gillian’s Restaurant:
let
X = icecreamY = yogurtObjective function =4.15X+3.6Y=P
Constraintsa. 0.75X+0.93Y<90
b. X+Y<115
Part A :0.75X+0.93Y=90
X=0
0.75(0)+0.93Y=90
0.93Y=90
Y=90/0.93
Y=96.77
Y=0
0.75X+0.93(0)=90
0.75X=90
X=90/0.75
X=120
Part B:X+Y<115
X=0
X+Y=115 0+Y=115 Y=115
Y=0
X+0=115 X+0=115 X=115The graph profit is maximum at
X=80 and Y=30
4.15(80)+3.6(30)=P332+108=P440=PP=$440Find out more information about "linear program":
https://brainly.com/question/14161814?referrer=searchResults
An item is regularly priced at $85. Salma bought it on sale for 35% off the regular price.
Answers
Does anyone know how to do this? Im so confused.
Answers
================================================
Work Shown:
AB+BC+CD = AD .... segment addition postulate
BC+BC+CD = AD ... replace AB with BC (since AB = BC)
BC+BC+BC = AD ... replace CD with BC (since BC = BC)
3*BC = AD .... combine like terms
3*BC = 12 .... replace AD with 12
BC = 12/3 .... divide both sides by 3
BC = 4
For right triangle PBC, the legs are BP = 3 and BC = 4. We can use the Pythagorean Theorem to find that the hypotenuse is PC = 5
The steps are shown below
(BP)^2+(BC)^2 = (PC)^2
3^2+4^2 = (PC)^2
9+16 = (PC)^2
25 = (PC)^2
(PC)^2 = 25
PC = sqrt(25)
PC = 5
The other parts of the diagram seem to be thrown in as a distraction.
5.) John goes out to eat at a local restaurant. The bill comes to $24.60. John want to
leave a 15% tip. How much of a tip should he leave?
Answers
Answer:
$3.69 for tip
Step-by-step explanation:
So you would want to find 15% of $24.60
which the answer to that would be $3.69 for the tip
in 13 liter of milk, 7 liter water has mixed up.what is the percentage of water?
Answers
Answer:53.8%
Step-by-step explanation:
For questions 18-20, if I ll m, find the values of .x and y.
18.
(3x - 16)
(lly - 32)
(6x + 7)
Answers
Answer
x=3.8 16.1
Step-by-step explanation:
i deeply apologize if this is incorrect but this is the work i did to make this answer
3x-16=6x+17
-3x+16
6x 23
x=3.8
y
6(3.8)+7+11y-32=180
22.8+7
29.8+11y-32=180
32
-29.8
11y+2.2=180
11y=177.8
y=16.1
When the population distribution is normal, the statistic median {|X1 − X tilde|, . . . , |Xn − X tilde|}/0.6745 can be used to estimate σ. This estimator is more resistant to the effects of outliers (observations far from the bulk of the data) than is the sample standard deviation. Compute both the corresponding point estimate and s for the data below. (Round your answers to three decimal places.)25.01, 25.87, 26.34, 26.51, 26.75, 27.24, 27.40, 27.63, 27.83, 27.90, 28.08, 28.13, 28.37, 28.58, 28.59, 28.96, 29.20, 29.22, 29.38, 30.88
Answers
Answer:
The corresponding point estimate is 0.882.
The sample standard deviation is 1.373.
Step-by-step explanation:
The data set is:
S = {25.01, 25.87, 26.34, 26.51, 26.75, 27.24, 27.40, 27.63, 27.83, 27.90, 28.08, 28.13, 28.37, 28.58, 28.59, 28.96, 29.20, 29.22, 29.38, 30.88}
Compute the mean as follows:
[tex]\bar X=\frac{1}{n}\sum X\\\\=\frac{1}{20}\times [25.01+25.87+...+30.88]\\\\=\frac{1}{20}\times 557.87\\\\=27.8935[/tex]
Subtract the mean from each value and take the modulus of those values.
The new data set is:
S₁ = {2.8835, 2.0235, 1.5535, 1.3835, 1.1435, 0.6535, 0.4935, 0.2635, 0.0635, 0.0065, 0.1865, 0.2365, 0.4765, 0.6865, 0.6965, 1.0665, 1.3065, 1.3265, 1.4865, 2.9865}
Arrange these values in ascending order as follows:
S₂ = {0.0065 , 0.0635 , 0.1865 , 0.2365 , 0.2635 , 0.4765 , 0.4935 , 0.6535 , 0.6865 , 0.6965 , 1.0665 , 1.1435 , 1.3065 , 1.3265 , 1.3835 , 1.4865 , 1.5535 , 2.0235 , 2.8835 , 2.9865}
There are 20 observations in the data set.
The median value for an even set of values is the mean of the middle two values.
In this case the median will be the mean of the 10th and 11th observations.
[tex]\text{Median}=\frac{10^{th}obs.+11^{th}obs.}{2}=\frac{0.6965+1.0665}{2}=0.8815\approx 0.882[/tex]
Thus, the corresponding point estimate is 0.882.
Compute the standard deviation as follows:
In set S₁ we computed the absolute mean deviations.
Now take the square of these values and divide by (n - 1) to compute the sample variance:
[tex]\sigma^{2}=\frac{1}{n-1}\sum (|X_{i}-\bar X|)^{2}[/tex]
[tex]=\frac{1}{20-1}\times [(2.8835)^{2}+(2.0235)^{2}+...+(2.9865)^{2}]\\\\=\frac{1}{19}\times 35.7953\\\\=1.88396[/tex]
Compute the sample standard deviation as follows:
[tex]\sigma=\sqrt{\sigma^{2}}=\sqrt{1.88396}=1.373[/tex]
Thus, the sample standard deviation is 1.373.
Would the product change if 50 + 2 on the top of the area model was changed to 20 + 30 + 2? Explain
Answers
Answer:
It would not change
Step-by-step explanation:
Because if you add you get the same thing
Jane babysits for $8 per hour. She earned $240 last week. This equation represents the number of hours, h, Jane babysat last week.
8h=240
How many hours did Jane babysit last week?
Answers
Answer:
30 Hours
Step-by-step explanation:
8h=240
240÷8=30
Answer:
30
Step-by-step explanation:
Because 8 x 30 = 240 or
240 Divided by 8= 30
How could you correctly rewrite the equation 6(11 – 3) = 4(7 455) using the distributive property?
18 - 66 = 20 +28
66 - 18 = 28 + 20
66 - 33 = 28 + 5
66 - 3 = 28 + 35
Answers
Answer:
B. 66-18=28+20
Step-by-step explanation:
Answer:
B.) 66 - 18 = 28 + 20
Step-by-step explanation:
Reasonable definitions of the decision variables are:________
a) x subscript 11 household without children under 16 and without premium subscription
x subscript 12 household without children under 16 but with premium subscription
x subscript 21 household with children under 16 but without premium subscription
x subscript 22 household with children under 16 and with premium subscription
b) x subscript 11 number of interviewed households without children under 16 and without premium subscription
x subscript 12 number of interviewed households without children under 16 but with premium subscription
x subscript 21 number of interviewed households with children under 16 but without premium subscription
x subscript 22 number of interviewed households with children under 16 and with premium subscription
c) x subscript 11 cost of interviewing a household without children under 16 and without premium subscription
x subscript 12 cost of interviewing a household without children under 16 but with premium subscription
x subscript 21 cost of interviewing a household with children under 16 but without premium subscription
x subscript 22 cost of interviewing a household with children under 16 and with premium subscription
d) All of the above are reasonable definitions.
e) None of the above.
Answers
Answer:
The correct answer is A.
Step-by-step explanation:
Decision variable are the numbers which are determined by the decision makers. This enables to identify the different possible events that might occur. The decision makers then select a number and identifies the possible occurrence of the events.