Answer:
yo no hablo english sorry
Step-by-step explanation:
PLEASE HELP ASAP WILL CHOOSE BRAINLIEST FOR CORRECT ANSWER GIVING 20 PTS
System A-
-x-2y=7
5x-6y=-3
Solution: (-3, -2)
Choose the correct option that explains what steps were followed to obtain the system of equations below.
System B:
-x-2y=7
-16y=32
A. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 3. The solution to system B will be the same as the solution to system A.
B. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -6. The solution to system B will not be the same as the solution to system A.
C. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -5. The solution to system B will not be the same as the solution to system A.
D. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.
please helpp and take ur time
Answer: A. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.
System A :
-x - 2y = 7 ..........(1)
5x - 6y = -3 ..........(2)
If we multiply the first equation by 5, then we will get :
5(- x - 2y) = 5(7)
⇒ - 5x - 10y = 35 ........... (3)
Now the Sum of equation (2) and equation (3) is:
⇒ Sum :
Now if we replace the second equation in system A with this , then we will get the system B.
Solution of system B:
First we will take the second equation as there is only one variable 'y'. So, we will solve that equation for 'y'
Now for solving 'x', we will plug y= -2 into the first equation
So, the solution of system B is (-3, -2), that means the solution of both systems are same.
Step-by-step explanation:
Answer: D:
To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.
Step-by-step explanation:
How many solutions does a system of equations have when solving results in the statement 3=5
Answer:
No solutions
Step-by-step explanation:
Answer:
they usually have the sum of an answer that they divided
Step-by-step explanation:
The revenue from selling x tickets is r(x) = 10x. The cost for buying x tickets is c(x) = 8x + 40. The profit from selling x tickets is p(x) = r(x) – c(x).9. What is p(x)? *
Answer:
p(x)=2x-40
Step-by-step explanation:
Substitute the variables
p(x)=10x-(8x+40)
p(x)= 10x-8x-40
p(x)=2x-40
Answer:
p(X) = r(X) - c(X).9
⇔ p(X) = 10x - (8x+ 40).9
⇔ p(X) = 10x - 72x - 360
⇔ p(X) = -62x - 360
Step-by-step explanation:
Please help I just relized that my dumb self waited 35 min for her science class to start but the class didnt start bc i missed math so i need to do thisss nowww my mother is so strictttt
it do be 1/4 tho not gonna lie
A manager of the credit department for an oil company would like to determine whether the mean monthly balance of credit card holders is equal to $75. An auditor selects a random sample of 100 accounts and finds that the mean owed is $83.40 with a sample standard deviation of $23.65. If you were to conduct a test to determine whether the auditor should conclude that there is evidence that the mean balance is different from $75, which test would you use? a) Z-test of a population mean b) Z-test of a population proportion c) t-test of population mean d) t-test of a population proportion
Answer:
c) t-test of population mean
Explanation:
The t-test statistic is used in hypothesis testing. Here we would use a one sample t test to test our hypothesis. The one sample t test measures the statistical difference between the hypothesized mean and the sample mean. In a one sample t test or single sample t test, a test variable is measured against a test value.
Example we compare our test variable to the hypothesized mean value $75 above.
The t test is used instead of z score when standard deviation is unknown.
Using the t test, we either accept or reject the null hypothesis given alternative hypothesis.
sixty-seven AND ninety-four THOUSANDTHS in standard form.
Answer:
Yes it's standard form lol
Step-by-step explanation:
please I need help... Mrs. Morales wrote a test with 15 questions covering spelling and vocabulary. spelling questions (x) are worth 5 points and vocabulary questions (y) are worth 10 points the maximum number of points possible on the test is 100
Answer:
5x+10y=100
Step-by-step explanation:
8 is 16 times what number
Answer:
1/2
Step-by-step explanation:
If you need an explanation just comment
Answer:
2 and you are in high school learning that?
Step-by-step explanation:
Which lines have a y-intercept of 5? Check all that apply.
A: y=5x-1
B: 4x-8y=40
C: x-y=5
D: x-3y=15
E: 2x-y=10
F: 6x+4y=20
Answer:
F: 6x+4y=20
Step-by-step explanation:
Only line representing the equation 6x+4y=20 has y-intercept of 5.
The line that has the y-intercept = 5 is 6x + 4y = 20
What are intercepts?The points where a line crosses an axis are known as the x-intercept and the y-intercept, respectively.
The standard slope intercept form:
y = mx + b
Comparing the options A,C,D and E with standard form and none of the options have b = 5.
So these options are out.
Now the options B,
Simplify, y = x/2 - 5
Compare with slope intercept form, and this equation also does not have
the y intercept as 5.
Now option F;
simplify, 6x + 4y = 20
y = -3x/2 + 5
Comparing with standard form,
And b= 5
Therefore, The line that has the y-intercept = 5 is 6x + 4y = 20
To learn more about the intercepts;
https://brainly.com/question/14180189
#SPJ5
Identify the two factors that were multiplied together to form the array of tiles. Then identify the product of the two factors. Use the variable x in your expressions.
Answer:
[tex]Terms: 3\ and\ x + 2[/tex]
[tex]Product = 3x + 6[/tex]
Step-by-step explanation:
See attachment for complete question.
From the attachment, there are 3 columns and 3 rows
The 3 columns represent the first factor
To get the second factor, we have to analyze the 3 rows in the attachment.
Notice that the first row is bigger than the other two rows.
This big row will be represented with variable x
Notice that the boxes in second row are smaller than the first row and the + sign is written on each of the boxes.
This is represented with + 1
Also, notice that the boxes in third row are smaller than the first row and the + sign is written on each of the boxes.
This is also represented with + 1
Hence, the expression for the rows is x + 1 + 1 = x + 2
The product is then calculated as:
[tex]Product = 3 * (x + 2)[/tex]
[tex]Product = 3 * x + 3*2[/tex]
[tex]Product = 3x + 6[/tex]
Plz plz plz help
I’ll give brainliest to first correct answer!
Graph y=2/3x
Answer:
Graph for 0.666667*x
Step-by-step explanation:
that what i found
Ana mixed 1 cup of lemonade with 4 cups of cranberry juice to make her favorite punch. How much cranberry juice will she use for 5 cups of lemonade. PLEASE HELP ME ASAPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
20
Step-by-step explanation:
since for every 1 lemonade there is 4 cranberry you have 5 lemonade now so you need 4 cranberry for every one of the 5 lemonade, which gives you 20
The seniors on the student council bought a total of 36 plants to use in landscaping the front of the school. They bought some azaleas that cost $6
each and some lilles that cost $5 each. They spent a total of $196 on these plants. How many azaleas did the students buy?
Answer:
The students bought 16 azaleas plants.
Step-by-step explanation:
Given that:
Total plants bought by student council = 36
Cost of each azaleas plant = $6
Cost of each lily plant = $5
Total amount spent = $196
Let,
x be the number of azaleas
y be the number of lilies
x+y = 36 Eqn 1
6x+5y=196 Eqn 2
Multiplying Eqn 1 by 6
6(x+y=36)
6x+6y=216 Eqn 3
Subtracting Eqn 2 from Eqn 3
(6x+6y)-(6x+5y)=216-196
6x+6y-6x-5y=20
y=20
Putting y=20 in Eqn 1
x+20=36
x=36-20
x=16
Hence,
The students bought 16 azaleas plants.
Write an integer that is located on a number line between the given integers.
13. -3,8
14. -24,22
15. -5,9
16. 0,4
17. -2,2
18. -17,-15
sara ordered 2 eggs, a slice of bacon, and a glass of orange juice for breakfast. the sales tax for the order was $0.48. she paid for her breakfast with a $10 bill.
one egg = $1.69
slice of bacon = $1.49
glass of orange juice = $1.09
how much change should sara receive from the $10 bill?
Answer:
She should receive $3.56 from paying with a $10 bill
Step-by-step explanation:
The total cost of all her items including sales tax is
$6.44
You have to deduct this total cost from what she paid with.
$10.00 - $6.44 = $3.56
Therefore,
Sara should receive $3.56 from paying with a $10 bill.
Answer: $3.56
Step by step explanation:
1. Figure out how much the eggs cost. (1.69×2=3.38)
2. Add the price of the eggs, bacon, O.J., and sales tax together. (3.38+1.49+1.09+0.48=6.44)
3. Subtract the total ($6.44) by the amount you paid ($10). (10-6.44=3.56)
Which choices are solutions to the following equation?
Check all that apply.
x^2 - 3x = -5/4
Answer:
The answer to this question is C.
8y+11= 6y + 11
solve for y
please help
Answer:
y = 0
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
8y + 11 = 6y + 11
Step 2: Solve for y
Subtract 6y on both sides: 2y + 11 = 11Subtract 11 on both sides: 2y = 0Divide 2 on both sides: y = 0Answer:
Step-by-step explanation:
8y+11=6y+11
we have the same number in both sides, they will cancel out
8y-6y=0
2y=0
y=0 is the only solution
Find the slope of the line passing through the points (-7, -3) and (6,-3
Answer:
-9/-1 is the slope
Step-by-step explanation:
-3-3/-7+6
A spice merchant divided 9/10 of a pound of ground cinnamon into 3 equal packages. She then sold the ground cinnamon to restaurants and bakeries. What was the weight of ground cinnamon in each package?
Answer:the answer is 0.3
Step-by-step explanation:
A cinema sold 1000 tickets on a Saturday evening. Adult tickets cost £9, children's tickets cost £5, and a total of £6680 was collected
If there are a Adult tickets and cChildren tickets, write down two simultaneous
equations connecting a and c.
Solve your equations to find how many tickets of each kind were sold.
A=
C=
given f(x)=-x-2, find f (-6)
Two farmers sell peanuts. The table and the graph below represent the two farmers where f(x) is the cost in dollars for x pounds of peanuts. What is the difference in the rate of change for the two functions
Answer:
number 2
Step-by-step explanation:
Help me on letter b please
Answer:
Answer: 2
Step-by-step explanation:
[tex](a-b)(a+b)=a^{2}- b^{2}[/tex]
[tex](\sqrt{5}-\sqrt{2} )(\sqrt{2}+\sqrt{5} )\\(\sqrt{5})^{2} -(\sqrt{2} )^{2}\\5-2=3[/tex]
h(n) = n + 2 g(n) = 2n + 1 Find h(n) − g(n)
to do your math use your fingers
Consider the rectangle.
4
x+1
-
Which pair of expressions represents the area of the rectangle?
O 2(x + 1) + 2 (4) and 2x +9
O 2(x + 1) +2 (4) and 2x + 10
O 4(x + 1) and 4x + 1
O 4(x + 1) and 4x + 4
Answer:
[tex] \boxed{ \underline{ \underline { \bold{ \tt{4(x + 1) \: and \: 4x + 4}}}}}[/tex]
☯[tex] \underline{ \underline{ \text{Question}}} : [/tex]
☥ Which pair of expressions represents the area of the rectangle?
☐ 2(x + 1) + 2 (4) and 2x +9
☐ 2(x + 1) +2 (4) and 2x + 10
☐ 4(x + 1) and 4x + 1
☑ 4(x + 1) and 4x + 4
☪ [tex] \underline{ \text{Given :}}[/tex]
Length of a rectangle ( L ) = 4Breadth of a rectangle ( B ) = x + 1☪ [tex] \underline{ \text{To \: Find} : }[/tex]
Pair of expressions which represents the area of the given rectangle☪ [tex] \underline{ \text{Solution}} : [/tex]
❀ [tex] \underline{ \boxed{ \sf{Area \: of \: a \: rectangle = length \times breadth}}}[/tex]
↦ [tex] \sf{4 \times (x + 1)}[/tex]
↦ [tex] \boxed{ \sf{4(x + 1)}}[/tex]
Also , In 4 ( x + 1 ) , if we distribute 4 through the parentheses , it would be 4*x + 4*1 = [tex] \boxed{ \sf{4x + 4}}[/tex].
Hence , the right answer is of last option { i.e 4 ( x + 1 ) and 4x + 4 } .
And we're done !
Hope I helped!!
♡ Have a wonderful day / night ツ
~ [tex] \text{TheAnimeGirl}[/tex] ♪
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A plumber charges a one time charge of $65 plus an hourly rate, h in dollars.
The plumber worked at a customer's house for 5 hours and charged a total of $215.
What was the hourly rate (h) in dollars per hour?
Answer:
y = 25x + 40; $140
Step-by-step explanation:
My dog, Lilly, weighs 3.8 pounds.
Round this to the nearest whole
number (ones place).
Lilly weighs about [?] pounds.
Answer:
4 pounds
Step-by-step explanation:
Since 8 is above 5 you would round the 3 up to a 4
(click the brain on the top right of my answer)
Answer:
4 pounds
Step-by-step explanation:
how many times does 80 go into 4320
54. You can just divide
Answer:
54Step-by-step explanation:
There are 54 time 80 in 4320.
( 4320 : 80 = 54 )
Can people help me on this please I need it!!! It’s really important
Answer:
62
Step-by-step explanation:
The total of a triangle is 180
so 78+48 is 118
180-118=62
NEED ASAPPPPPPPPPPPPPPPPP HURRY
Answer:
what
Step-by-step explanation: