Answer:
x = 1 ,y = -2
Step-by-step explanation:
Solve the following system:
{-4 y - 3 x = 5 | (equation 1)
3 y - 2 x = -8 | (equation 2)
Subtract 2/3 × (equation 1) from equation 2:
{-(3 x) - 4 y = 5 | (equation 1)
0 x+(17 y)/3 = -34/3 | (equation 2)
Multiply equation 2 by 3/17:
{-(3 x) - 4 y = 5 | (equation 1)
0 x+y = -2 | (equation 2)
Add 4 × (equation 2) to equation 1:
{-(3 x)+0 y = -3 | (equation 1)
0 x+y = -2 | (equation 2)
Divide equation 1 by -3:
{x+0 y = 1 | (equation 1)
0 x+y = -2 | (equation 2)
Collect results:
Answer: {x = 1 ,y = -2
80% of = 72 pls i will give brainlyest
Answer:
Hey buddy, here is your answer. Hope it helps you.
Step-by-step explanation:
80/100*72=57.6
As it’s 80% we need to divide 80/100 and they said of 72 so we have to then multiply with 72
What is the slope of the line that passes through the points (-10, 9)(−10,9) and (-12, 7) ?(−12,7)
Answer:
The slope is 1
Step-by-step explanation:
Equation of the line:
y = x + 19
1. Which is the slope of the line that passes through points (1,1) and (2,7)
1a. Pick a point the line passes through above with the slope you calculated, find the y-intercept
1b. Now that you know the slope and y-intercept, what is the equation of the line ?
Answer:
y=6x-5
Step-by-step explanation:
1) Use slope formula to find the slope. Slope is 6
1a) Substitute (1,1) in the equation. -5
1b) y=6x-5
Hope this helps :-)
The track around the Wilson football field is a circle that has a radius of 50 yards. If you walk ONE lap, what distance did you walk?
Answer:
You walked one lap = 50 yards you walked 50 yards.
Step-by-step explanation:
Answer:
25 yards
Step-by-step explanation:
half of 50 is 25
You are Buying snacks. you buy 8 apples and 2 juices. the juice costs $1.75 each. The total cost is 9.50. How much is 1 apple?
Answer: Each apple would cost $0.75.
Step-by-step explanation: If each juice is $1.75, then 2 of them equal $3.5. Subtract this from $9.50 to get 6 dollars remaining. We know now we can buy 8 apples from the remaining 6 dollars. So from this, divide 6 by 8, you get $0.75.
Guys I need help asap what is half of 45
the sum of twice a number and 15
Answer:
2x+15
Step-by-step explanation:
because this is easy
Answer:
2x+15
Step-by-step explanation:
The "sum" means addition. "Twice a number" means 2x (or any other variable), "and 15" means adding 15.
hope this helps!
What is the measure of L in
degrees? Round your answer to
the nearest hundredth.
23
N
18
Use trigonometry to find L.
Tangent = opposite over adjacent on any right triangle.
tan(L) = 18/23
Take the inverse on both sides.
arctan(tan(L)) = arctan(18/23)
L = 38.0470425318
L = 38.05°
Done.
Based on a poll 62% of internet users are more careful about personal information when using a public wifi hotspot. What is the probability that amoung three randomly selected internet users at least one is more careful about personal information when using pubblic wifi hotspot?
Answer:
0.9451
Step-by-step explanation:
Remaining question? "How is the result affected by the additional information that the survey subjects volunteered torespond?"
Probability that at least 1 user is more careful about personal information when using a public Wi-Fi hot spot is:
P(X≥1) = 1 − P(X<1)
= 1 − P(X=0)
= 1 - [(3,0) (0.62)^0 (1-0.62)^3-0
= 1 - 0.054872
= 0.945128
= 0.9451
Thus, the probability that among three randomly selected Internet users; at least one is more careful about personal information when using a public Wi-Fi hotspot is 0.9451
Figure ABC is reflected over the x-axis to obtain figure A′B′C′ below: Triangle ABC is located on the coordinate plane with vertex A at negative 5 comma 4, vertex B at negative 2 comma 4, and vertex C at negative 4 comma 1. Triangle A prime B prime C prime is located with vertex A prime at negative 5 comma negative 4, vertex B prime at negative 2 comma negative 4, and vertex C prime at negative 4 comma negative 1. Which statement best describes the relationship between the two figures? (5 points) Figure ABC is bigger than figure A′B′C′. The measure of angle A is equal to the measure of angle B′. The measure of angle C is equal to the measure of angle B′. Figure ABC is congruent to figure A′B′C′.
Answer:
Figure ABC is congruent to figure A′B′C′.
Step-by-step explanation:
I just did the test and got it right
D - Figure ABC is congruent to figure A′B′C′.
Step-by-step explanation
took the test
Identify all of the acute angle shown
Answer:
a
Step-by-step explanation:
-17=-2n+13-8n I WILL GIVE BRAINIEST
Find TE. I really need help!
Answer: 12
Step-by-step explanation: So VE and TE are equivalent because diagonals bisect. So you can set up an equation. 4+2x=4x-4. Simplify the equation, and you get 2x=8. X=4. So plug 4 into the equation. TE is equal to 12.
So i need to get the answer to this homework, anyone help!!!!!
Answer:
B
Step-by-step explanation:
Use the graph below to fill in the blank with the correct number:
f(-2) =
(3 points)
5 4 $
.
2
-5 4 3 2 1
2 3 4 5
-2
.
-3
5
Blank 1:
Answer:
f(-2) = 2
f(-3) = 0
f(1) = -2
f(0) = 1
Joan and Ernie are earning money for summer camp. Joan receives a $7 weekly allowance plus $6 for each hour she helps her father paint. Ernie writes the equation LaTeX: y\:=\:5x\:+7y = 5 x + 7 to represent the relationship between the number of hours he helps his father with yard work and his weekly allowance.
Which person has the greater rate of change?
Which person has the greater y – intercept?
Which has more money at 10 weeks?
Choose all that apply
Joan has more money in 10 weeks
Joan has the greatest rate of change
Joan has the greatest y-intercept
They have the same amount of money in 10 weeks
Their rate of change is the same
Ernie has the greatest rate of change
Ernie has more money in 10 weeks
Ernie has the greatest y-intercept
Their y-intercepts are the same
Answer:
6x+7
Step-by-step explanation:
The local water slides have 100 employees, of which 30% are temporary. How many temporary employees are there?
Answer:
There are 30 temporary employees
Step-by-step explanation:
To find x% of quantity A, multiply x% by A after change x% to the normal number by divide it by 100 ⇒ (x ÷ 100) × A
Let us use this rule to solve the question
∵ The local water slides have 100 employees
∵ 30% of them are temporary
∴ The number of temporary employees = 30% × 100
∵ 30% = 30 ÷ 100 = 0.30
∴ The number of temporary employees = 0.30 × 100
∴ The number of temporary employees = 30
∴ There are 30 temporary employees
Please help, correct answers please
PLEASE I DO NOT UNDERSTAND
Answer:
(1) 2, (2) -5/4, (3) 7/5, (4) -7/4, (5) 3/5, (6) -1/4, (7) 3, (8) -1/2, (9) 1/6
Step-by-step explanation:
each line had points on it. what you want to do is go to the bottom point. then go up until you hit the line where the other point is. then go to the side to where the other line is. make sure you're counting the whole time. if it can be simplified (ex: 2/4), simplify it. if the line is pointing to the left, it is negative. remember, rise over run, if pointing left it's negative, and draw a triangle from the points (which i didnt say but it works).
Please help me! The problem is quick and simple and I’ll mark whoever answers it brainliest
Write an algebraic expression that could be used to find the amount of money in the envelope at the end of “n” weeks.
Answer:
Like N=ky?
Step-by-step explanation:
Help!! Pleaseeeeeee this us urgent!!!!
Answer:
I will send you a link for desmos, the only way I can show you
Step-by-step explanation:
desmos.com/calculator/sjwbssn5xm
When 107/333 is written as a decimal, how many digits are in the smallest sequence of repeating digits?
A.) 1
B.) 2
C.) 3
D.) 4
Which fraction is equal to 0.370?
A.) 37/100
B.) 370/999
C.) 37/99
D.) 37/9
When 1/6 is written as a repeating decimal, which digit is repeating?
A.) 1
B.) 6
C.) 7
D.) 16
What fraction is equal to 0.03?
A.) 3/100
B.) 1/33
C.) 1/11
D.) 1/3
Answer:
1. c
2. a
3. b
4. a
Answer:
C,a,b,a
Step-by-step explanation:
Find (x−2)(4x+2) using the table of products. Write your answer in standard form.
Answer:
x = {0.449489743, -4.449489743} thats what i got
The product of the two expressions (x - 2)(x + 2) gives x² - 4
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given the expression (x - 2)(x + 2):
Multiplying the two expressions gives:
x² + 2x - 2x - 4
This gives:
x² - 4
The product of the two expressions (x - 2)(x + 2) gives x² - 4
Find out more on equation at: https://brainly.com/question/2972832
#SPJ2
help please !! explain if can too? :)
Answer:
29 because lines ac and bd are perpendcular and equal.
Step-by-step explanation:
im not fully sure my explanation is good enough
Help me please !!
Given: P: S, PQ=ST, Q=
Answer:
Yes AAS
Step-by-step explanation:
................. J
Answer:
none of the other answers are correct
It takes 3 hours to cook an 8-pound turkey. How long would it take to cook a turkey that is 14 pounds? Round to the nearest tenth.
Answer:
5.3 hours
Step-by-step explanation:
Given:
3 hours = 8lbs. turkey
?? hours = 14lbs. turkey
Do proportions:
[tex]\frac{3}{8}[/tex] = [tex]\frac{x}{14}[/tex] <-- Cross Multiply
42 = 8x <-- Solve for x
x = 5.25
Round to the nearest tenth:
x = 5.3 hours
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Answer:i can't see it post a better one
Step-by-step explanation:
Need help asappppppp
Answer:
your answer is 20
Step-by-step explanation:
20/tan 45 wich
REALLY NEED HELP/ASAP
GRADES ARE CLOSING AND I NEED TO FINISH THIS BEFORE 5!!!!!
Answer:
I think it's z= 110/3
Step-by-step explanation:
Answer:
z = 36.68
Step-by-step explanation:
calculate the product 78.93 times 32.45
Answer:
2561.2785
Step-by-step explanation:
Answer:
2561.2785Step-by-step explanation:
7 8 9 3
× 3 2 4 5
+ 3 9 4 6 5
+ 3 1 5 7 2
+ 1 5 7 8 6
+ 2 3 6 7 9
= 2 5 6 1 2 7 8 5
Hope this helps!!