Answer:
[tex]x=2\\y=-3[/tex]
Step-by-step explanation:
We have:
[tex]-9x-10y=12\\-3x+3=y[/tex]
Since we already have a variable value ([tex]y[/tex]) in the second equation, it would be easiest to substitute the value for [tex]y[/tex] in the first equation:
[tex]-9x-10(-3x+3)=12[/tex]
Distribute [tex]-10[/tex] into [tex](-3x+3)[/tex]:
[tex]-9x+30x-30=12[/tex]
Combine like terms:
[tex]21x-30=12[/tex]
Add [tex]30[/tex] to both sides of the equation:
[tex]21x=42[/tex]
Divide by the coefficient of [tex]x[/tex], which is [tex]21[/tex]:
[tex]x=2[/tex]
_
Now that we have our [tex]x[/tex] value, we can substitute that in to the second equation to find our [tex]y[/tex] value:
[tex]-3(2)+3=y[/tex]
Multiply:
[tex]-6+3=y[/tex]
Combine like terms:
[tex]-3=y[/tex]
C=85x+60
Solve the equation for x
Answer:
( C - 60)/ 85 = x
Step-by-step explanation:
C=85x+60
subtract 60 from each side
C-60=85x+60-60
C - 60 = 85x
Divide each side by 85
( C - 60)/ 85 = 85x/85
( C - 60)/ 85 = x
I’m in need of serious help I don’t know how to do this
Answer:
Line A, (horizontal slope), Line B, (Negative slope) Line C, (Vertical slope) Line D, (Undefined slope)
Step-by-step explanation:
Ed makes 6% commission on every case of widgets he sells. This week, Ed sold 16 cases for $800.00 each. How much did Ed earn on commission this week? Explain how you got your answer.
Answer:
$48.00
Step-by-step explanation:
[tex]\mathrm{Multiply\:without\:the\:decimal\:points,\:then\:put\:the\:decimal\:point\:in\:the\:answer}[/tex]
[tex]$\mathrm{Line\:up\:the\:numbers}$[/tex]
800
x 6
$48.00
800 has 0 decimal places
0.06 has 2 decimal places
[tex]\mathrm{Therefore,\:the\:answer\:has\:}2\mathrm{\:decimal\:places}[/tex]
[tex]=48.00[/tex] or [tex]=48[/tex]
6 1 2 3 + + 2 3 4 Situation: Find the value of this fraction computation: 6(1/2+3/4+2/3)
Answer:
11.5 gotchu 100% correct
Step-by-step explanation:
Answer:
[tex]\frac{23}{2}[/tex] or 11.5
Step-by-step explanation:
[tex]\frac{1}{2} + \frac{3}{4} + \frac{2}{3} = \frac{6}{12} + \frac{9}{12} + \frac{8}{12}[/tex] Plug the new expression in: 6(6/12 + 9/12 + 8/12)6/12 + 9/12 + 8/12 = 23/12Plug 23/12 in: 6(23/12)6(23/12) = 23/2 = 11.5I hope this helps!
rewrite y=3x+5 in function notation
Answer:
X=1
Step-by-step explanation:
I looked It up ¯\_(ツ)_/¯
What is 39700.0947 in scientific notation ?
1) Delilah and Amara are both saving money for their vacation. Delilah plans to deposit $17.60 per week into her bank account which currently has a balance of -$308. Amara's bank account is also overdrawn and has a balance of $80. Amara plans to deposit $8.10 a wook into her account. How many weeks (w) must pass for both bank accounts to have the same balance?
A.analyze the given information. Write the general structure of the equation.________________
B. formulate a plan. Write the two variable expressions and define the given variable. Then, write the equation.
Variable defenition:
Right- side expression:
Write the equation:
C. determine a solution. Solve the equation.
Answer:
B. formulate a plan. Write the two variable expressions and define the given variable. Then, write the equation.
Variable defenition:
Right- side expression:
Write the equation:
Step-by-step explanation:
B. formulate a plan. Write the two variable expressions and define the given variable. Then, write the equation.
Variable defenition:
Right- side expression:
Write the equation:
IF CORRECT I'LL MAKE BRAINLYLIST!!!
Answer:
the answer to you question is x=2
The discriminant of a quadratic equation is 34. Which of the following is true about its roots? *
a.The roots are imaginary and unequal.
b.The roots are real, rational, and unequal.
c.The roots are real, irrational and unequal.
d.The roots are real, rational and equal.
Answer:
d. The roots are real, rational and equal.Step-by-step explanation:
The discriminant of a quadratic equation is expressed using the equation:
D = b²-4ac. It talks about the nature of the roots of a quadratic equation.
If D>0, then the roots is real and unequal/distinct
If D<0 the roots are unreal and imaginary
If D = 0, the roots are real and equal (one real root)
According to this question, since the root given is a real value and also one value, then the the roots are real, rational and equal. Note that the root is rational since we can write it as a ratio of two integers e.g 34 = 34/1. 34 and 1 are integers
Introduction to functions
Which graph represents a function
Answer:it is the one with a strait line
1)What is the value of x?
drawing not to scale
A)-19
B)125
C)19
D)55
2) M<3=37 find m<1
drawing not to scale
A)37
B)143
C)127
D)153
Answer:
A. C) x = 19
B. A) 37
Step-by-step explanation:
A. 7x - 8 = 6x + 11
7x - 8 - 6x = 6x + 11 - 6x
x - 8 = 11
x - 8 + 8 = 11 + 8
x = 19
B.
If m<3 = 37
<1 = <3
Therefore, m<1 must equal 37
I need help pleasee
Answer:
-1/3 i think
Step-by-step explanation:
If you get this right, u will be the brailest!
74,451 - 12,421
ESTIMATED ANSWER!! Thank you so much!!
62030 is the answer, I get
what is the square root of 1268
Answer:
35.60
Step-by-step explanation:
Answer:
35.60898763
Step-by-step explanation:
this is the square root of 1268
How do you find the mean? I'm an idiot right now.
Answer:
the mean is the average of all the numbers. first add up all numbers. then divide by how many numbers there are.
hope this helps
Can u help me with this pls
Answer:
[tex]2.\overline {24}[/tex] = 2[tex]\frac {8} {33}[/tex] or D.
Step-by-step explanation:
2 is a whole number, so its [tex]\frac {2} {1}[/tex] and [tex]0.\overline {24}[/tex] is a repeating decimal, so that means we try to simplify it: [tex]\frac {24} {100}[/tex]÷[tex]\frac {3} {1}[/tex]=[tex]\frac {24} {100}[/tex]·[tex]\frac {1} {3}[/tex]=[tex]\frac {8} {33}[/tex]
Your soccer team isnt holding a silent auction dinner as a fundraiser to pay for school uniforms. The list shows all the expenses for the silent auction, 1) a tablet costs $280 2) football tickets that cost $100 3) a gift card that cost $20 4) the cost of the food is $400. The members of the soccer team will be selling tickets to the silent auction. A ticket to the silent auction includes chances to win prizes and dinner. The ticket cost is set so that 50 tickets will pay for the cost of food and prizes and food. Part a determine the cost per ticket. Part B build a function that can be used to find the total profit, f(x), the soccer team earns by selling x tickets. Show your work to build a function. Part C your soccer team needs to raise at least $300 more than the total cost of the expenses. What is the minimum number of tickets that must to be sold in order for your team to reach their goal? Use the mathematics to justify your response.
Answer:
A) $16
B) p(x) = 16x -800
C) 69 tickets
Step-by-step explanation:
A) The total of expenses is ...
$280 +100 +20 +400 = $800
If this is covered by 50 tickets, then a ticket must provide revenue of ...
$800/50 = $16
The cost per ticket is $16.
__
B) The profit is the difference between revenue and expenses. The revenue from sale of x tickets will be 16x. The expenses are fixed at 800, so the profit is ...
p(x) = 16x -800
__
C) We can find the number of tickets to sell (x) in order for profit to be at least $300 by solving the inequality ...
p(x) ≥ 300
16x -800 ≥ 300 . . . . . use the expression for p(x)
16x ≥ 1100 . . . . . . . . . add 800
x ≥ 68.75 . . . . . . . . . . divide by 16 . . . (the least satisfactory integer is 69)
In order to raise at least $300, the number of tickets sold must be at least 69.
Bonita said that the product of 5/6 × 1 2/3 is 7/3.
How can you tell that her answer is wrong?
Answer: the answear is your question will never get answeared hahahahahahahahahahah
Step-by-step explanation: have fun doing it byeyourself bottttttttttttttttttttttttttttt
A computer magazine is analyzing three microprocessors. Microprocessor A executes one cycle in 0.00000000003 seconds, microprocessor B executes one cycle in 0.0000002 seconds, and microprocessor C executes one cycle in 0.000000008 seconds. Which of these statements is correct? Select all that apply.
Microprocessor A executes one cycle in 3 × 10–11 seconds, and microprocessor B executes one cycle in 2 × 10–7 seconds.
Microprocessor B executes one cycle in 2 × 10–7 seconds, and microprocessor C executes one cycle in 8 × 10–9 seconds.
Microprocessor C executes one cycle in 8 × 10–9 seconds, and microprocessor A executes one cycle in 3 × 10–11 seconds.
Microprocessor A executes one cycle in 3 × 10–11 seconds, and microprocessor C executes one cycle in 8 × 10–8 seconds.
Microprocessor C executes one cycle in 8 × 10–9 seconds, and microprocessor B executes one cycle in 2 × 10–6 seconds.
Microprocessor B executes one cycle in 2 × 10–7 seconds, and microprocessor A executes one cycle in 3 × 10–12 seconds.
Answer:Microprocessor A executes one cycle in 3 × 10–11 seconds, and microprocessor B executes one cycle in 2 × 10–7 seconds.
Microprocessor B executes one cycle in 2 × 10–7 seconds, and microprocessor C executes one cycle in 8 × 10–9 seconds.
Microprocessor C executes one cycle in 8 × 10–9 seconds, and microprocessor A executes one cycle in 3 × 10–11 seconds.
Step-by-step explanation: I got it right on the test
Sanjeev wants a rug for his room . Which SI unit is best for describing the area of his room
a) meters squared
b) kelvins
c) centimeters cubed
d) milimeters
Answer:
meters squared
Step-by-step explanation:
kelvin is used to measure temperature. so that isn't it. centimeters cubed is a small measurement and isn't used for a 2d surface like the rug that covers the floor. and millimeters is too small to measure for a rug. the answer is meters squared.
Answer:
meters squared
Step-by-step explanation:
y=(x-4) ²-2
Find the vertex. How do you do that ?
Answer:
(4,-2)
Step-by-step explanation:
Going to Desmos and you will see the the graph and you can push on the vertex and see the answer
2-(3x-4)=2x-9
confused.
Answer:
x=3
Step-by-step explanation:
To solve for x in the given equation,follow the steps below.
2-(3x-4)=2x-9
clear bracket
2-3x+4=2x-9
6-3x=2x-9
collect like-terms
2x+3x=6+9
5x=15
divide bothsides by 5
The solution to given equation is 3.
The given equation is 2-(3x-4)=2x-9.
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
Here, 2-(3x-4)=2x-9
2-3x+4=2x-9
6-3x=2x-9
6+9=2x+3x
15=5x
x=15/5
x=3
Therefore, the solution to given equation is 3.
To learn more about an equation visit:
brainly.com/question/14686792.
#SPJ6
Given: ∠ABC is a right angle and ∠DEF is a right angle.
Prove: All right angles are congruent by showing that ∠ABC ≅∠DEF.
What are the missing reasons in the steps of the proof?
A flow chart with 4 boxes that are labeled Given, A, B, C from left to right. Box Given contains angle A B C, angle D E F are right angles. Box A contains m angle A B C = 90 degrees and m angle D E F = 90 degrees. Box B contains m angle A B C = m angle D E F. Box C contains angle A B C is-congruent-to angle D E F.
The missing reasons in proving that all right angles are congruent are:
A. Definition of right angles
B. Substitution property
C. Congruent angles
What are Right Angles?Right angles are angles that measure 90 degrees. If two angles have the same 90 degrees, then they are congruent.
Thus, in the proof given, we have the following statements and their respective reasons:
∠ABC and ∠DEF are right angles - Givenm∠ABC = 90°; and m∠DEF = 90° - Definition of right anglesm∠ABC = m∠DEF - substitution property∠ABC = ∠DEF - congruent anglesLearn more about right angles on:
https://brainly.com/question/101834
Answer:
A 2-column table has 8 rows. The first column is labeled Statements with entries angle A B C is right angle, Line segment D B bisects angle A B C, B, m angle A B D = m angle C B D, m angle A B D + m angle C B D = 90 degrees, m angle C B D + m angle C B D = 90 degrees, D, m angle C B D = 45 degrees. The second column is labeled Reasons with entries A, given, definition of right triangle, definition of bisection, C, substitution property, addition, and division property.
Identify the missing parts in the proof.
Given: ∠ABC is a right angle.
DB bisects ∠ABC.
Prove: m∠CBD = 45°
A:
✔ given
B:
✔ measure of angle ABC = 90
C:
✔ angle addition postulate
D:
✔ 2 times the measure of angle CBD = 90
Step-by-step explanation:
Three sisters purchased a dress of equal value. One of the sisters purchases a purse for $26.00. If the grand total was $249.50, how much did each dress cost?
I need an answer by today please! :)
Answer:
cost of dress is
Step-by-step explanation:
way to much they should have gone to goodwill they could get a dress for like 5 bucks
help asap please:
Solve x-7y=16 for y
Answer:
y = (x-16)/7
Step-by-step explanation:
x - 7y = 16
~Subtract x to both sides
-7y = 16 - x
~Divide -7 to everything
y = (16-x)/7
Best of Luck!
Answer:
y = 1/7 x -16/7
Step-by-step explanation:
x-7y=16
Subtract x from each side
x-x-7y=16-x
-7y = -x+16
Divide each side by -7
-7y/-7 = -x/-7 +16/-7
y = 1/7 x -16/7
Solve the equation y = ax − b for the variable x.
A. x = ya + b
B. x = a+by
C. x = y + ba
D. x = y+ba
Answer:
(y+b)/a = x
Step-by-step explanation:
y = ax − b
Add b to each side
y+b = ax − b+b
y+b =ax
Divide each side by a
(y+b)/a = ax/a
(y+b)/a = x
Answer:
its d
Step-by-step explanation:
because is you think about it x is y+ba
If h and j are inverse functions, what is h(j(15))
Answer: 15
Step-by-step explanation:
Let's define the concept of inverse functions.
If we have a function h(x), such that it has an inverse, and:
h(x) = y.
Then the inverse function j(x) must meet the following:
j(y) = x.
Now, we want to calculate:
h( j(15) ).
Let's suppose that:
j(15) = A.
(Where A can be any real number).
then, by the above relation, we must have that:
h(A) = 15.
Now we can replace j(15) by A in h(j(15)):
h( j(15) ) = h( A ) = 15.
Put the following equation of a line into slope-intercept form, simplifying all fractions.
3x + 15y = 45
Answer:
y equals -x/5 + 3
Answer:deformed penis
Step-by-step explanation:
1.2+&7(6–&67-7-7+7=6+7-66+7=7+7-7-
Can someone help me? Thanks!!:)
Answer:
A
Step-by-step explanation:
We can try each option to see which one is correct.
System of Equations:
y > -2
x + y <= 4
Option A:
3 > -2 (true)
1 + 3 <= 4
4 <= 4 (true)
We do not need to test any more options since we already found the correct one.
Best of Luck!
Draw and label a number line that represents -5
Answer:
Look at the picture shown
Step-by-step explanation:
Draw the number line in the picture given
circle the number -5