Answers
Answer:
Step-by-step explanation:
Substitution method:
y= -2x + 2
x - 2y = 6
so y = (-2x + 2)
Substitute into y
Hence x - 2y = 6 is:
x + 2x +2 = 6 (+2x because there was - in the equations so -×- = +)
3x + 2=6
Then bring 2 to the other side so
3x = 6-2
3x = 4
x = 3/4 or 0.75
To find y :
y= (-2 × 3/4) + 2
y = -1.5 +2
y = 0.5
That's all I can do for now!
Related Questions
The area of the triangle below is 2/5 square foot. What is the length, in feet, of the base of the triangle?
Choice A) 24/25
Choice B) 25/24
Choice C) 2/3
Choice D) 3/2
Answers
Answer:
C
Step-by-step explanation:
A= 1/2bh
2/5= 1/2(b)(6/5)
4/5= 6/5b
4=6b
4/6=b
b= 2/3
An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $5660 and his stock in Company B was worth $2500. The stock in Company A has increased 5% since last year and the stock in Company B has increased 9%. What was the total percentage increase in the investor's stock account? Round your answer to the nearest tenth (if necessary).
Answers
The total percentage increase in the investor's stock account will be 8.6%.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
The amount he earned from company A and company B is given as,
Earned = $5660 x 0.05 + $2500 x 0.09
Earned = $283 + $225
Earned = $508
Then the total percentage increase in the investor's stock account is given as,
P = [(508) / (5660 + 2500)] x 100
P = (508 / 5910) x 100
P = 0.086 x 100
P = 8.6%
The total percentage increase in the investor's stock account will be 8.6%.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
Yarg. look on it for question. (Math middle school 7th grade "Moving ahead")
Answers
PLS HELP!! /BRAINLIST (DONT PUT AN RANDOM ANSWER) PLS HELP ASAP
also if u just put anything I'll report you
Answers
Answer:
Step-by-step explanation:
2(2 color pants)*4(4 colored shirt)*2(2 colored tie)=16
Tree diagram below:
Write a polynomial expression that has the following characteristics:
The polynomial expression is a binomial.
The polynomial expression has degree 4.
The leading coefficient is 7.
Answers
Answer:
7x^4+x^3 (or 7x^4 + some random term)
Step-by-step explanation:
Since the polynomial expression must be a binomial, it must have two terms.
Since the binomial must have a degree of 4, and the leading coefficient must be 7, then a possible binomail could be 7x^4+x^3 because you have two terms, 7x^4 and x^3 while the degree is 4 and the leading coefficient is 7.
it was -3 Celsius sunset. At sunset next morning, it was -7 Celsius. Which exspression gives the temperature change from sunset to sunrise?
A. -3 - (-7) or B. -7 - (-3)
No links or fake answers. I'm so bad at deciding which number goes where -_-
Answers
Helppppppp just do the thing, also fake answers will be reported
Answers
Question 1:
(image attached)
Question 2:
a:
-About 60% is over 17 based on the chart.
b:
- About 25% of the values are less than 15.
c:
-About 40% of the values are greater than 19.
I HOPE I HELPED!!! HAVE AN AMAZING DAY/NIGHT!!! PLEASE MARK ME BRAINLIEST IF I HELPED YOU!!
Please answer asap (give explanation)
The inside of all new elevators must be wheelchair accessible. The minimum requirements are shown. The inside volume of an older elevator is 144 cubic feet. The base is a square and the height is 9 feet.
a. Explain why the older elevator does not meet the wheelchair requirements.
(please give explanation if solved, thanks)
Answers
Step-by-step explanation:
Elevator must be easily accessible in a public space (instead of, for example, a cramped hallway)Doors must remain fully open for at least three seconds.Call buttons are a minimum of 0.75 inches in diameter.Button heights must be centered 42 inches from the floor.The items Matt ate at dinner cost m dollars. He added 6.5% to the cost of dinner for sales tax. Matt paid $25 using a gift card and used cash for the rest. Select all of the expressions that show the amount Matt paid using cash.
Answers
Answer:
there isn;t anything posted underneath
Step-by-step explanation:
PLZZZZZ HELP and plz no Links
Answers
Answer:
5 1/7
Step-by-step explanation:
First, make both numbers into a fraction
9/1 x 4/7
multiply top and bottom
36/7
simplyfy- 7 goes into 36 five times with 1 left over.
5 1/7
A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 38 centimeters, and the length of the other leg is 29 centimeters. The student incorrectly says that the length of the hypotenuse is 8.2centimeters. Answer parts a and b.
Find the length of the hypotenuse of the right triangle to the nearest tenth of a centimeter.
The length of the hypotenuse of the right triangle to the nearest tenth of a centimeter is ..... cm
(Round to the nearest tenth as needed.)
Answers
Answer:
1,142.5 or 1,143
Step-by-step explanation:
Part A: Start by writing out the equation a2 + b2 = c2. Since both sides a and b are known, fill it in. So, now it is 38 squared + 29 squared = c2. Next, you have to find the square roots for both sides, or legs. For 38 squared, it will be 38 x 38 = 1,444. For 29 squared, it will be 29 x 29 = 841. Now that we both legs, we add that together: 1,444 + 841, which equals 2,285. Then, you need to divide 2,285 by 2, which is 1,142.5
Since you need to round, it would be 1,143.
Part B: 1,143
I know the first 2 are right, but usually there are 3 right answers for 5 choices, is there another one or am I good?
Answers
Answer:
You should be fine.
Step-by-step explanation:
Answer:
It's good. Hope you get a A+!
Step-by-step explanation:
can someone please help me answer and please explain how you got your answer
Answers
Answer:
11.6 km²
Step-by-step explanation:
Divided it into two shapes, a triangle and a rectangle. Then find the area for each. The triangle is 4 km long and 2.2 km wide. The rectangle is 1.8 km wide and 4 km long.Solve the area for the triangle. The equation l · w ÷ 2=A will help. So, the equation would be 4 · 2.2 ÷ 2=4.4Then, solve the area for the rectangle by using the equation l · w=A. 1.8 · 4=7.2Add them together. 4.4+7.2=11.6Final answer - 11.6 km²Calculating interests,plz help-
Answers
HELLOOOOOOOOOOOOOOOOOOOOOOOOOOOOO :D
(I Need Help Please) Please Read all of it?
Jason wants 156 cupcakes for his party, Jason has already made 60 cocoa cupcakes, and 24 berry cupcakes. How many more cupcakes does Jason need to make?
Answers
Answer: 72 cupcakes
Step-by-step explanation:
Jason has already made 60 cocoa cupcakes and 24 berry cupcakes. In total, that is 84 cupcakes. He wants 156 cupcakes, so 84 is subtracted from 156, the answer is 72.
Plz helppp
Do the calculation below
6(18 + 14)
Answers
Answer:
Explained below...
Step-by-step explanation:
First, recognize the acronym PEMDAS, which stands for:
P - Parenthesis
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction
So, as there are parenthesis, that will be your first step in the expression.
6(18 + 14) --> 6(32)
Now, you will find the next step in PEMDAS, which would be multiplication.
6 * 32 = 192.
So, your answer for the equation is 192.
Hope this helps! :)
Answer:
6(18 + 14) = 192
Step-by-step explanation:
Someone help, I can't figure this out lol
Answers
Answer: (13) 128 (14) 3 (15) 38 (16) 21
Step-by-step explanation:
13) (x+3)+49=180
14) 66+8x=90
15) (x+3)+49=90
16) 3x+117=180
When would you use a line graph?
if the data is given as data pairs
to compare change over time
to compare categories
Links=reported
Answers
Answer:
yes this is correct a line graph is used to show change over time
and you would use a line graph to show how something changes over time for example u take a test each week and u wanna see the results use a line graph , because it is showing change over time
Step-by-step explanation:
If 47 Mph was a unit rate, how many hours would it take to travel 1 Mph?
Answers
Answer: um i think you asked the question wrong. But ok.
Step-by-step explanation:
= 47 miles per hour
This is a fraction equal to
47 miles ÷ 1 hours
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 1
47 miles ÷ 1
1 hours ÷ 1
=
47 miles
1 hour
=
47 miles
hour
= 47 miles per hour
Answer:
It would take you a total of .021 of an hour to get there.
Step-by-step explanation:
So, you are asking if 47 mph was a unit rate, how long would it take to travel 1 mile? Ok, so you would convert this to a unit rate, which would be 1 hour.47 miles because you are trying to get the 47 to a 1. Next, you will divide both numbers by 47, giving you .0212765957/1. This rounds to .021/1.
Hope this helps! :)
Find the equation of the exponential function represented by the table below
Answers
Answer: no lo se pero buena suerte
Step-by-step explanation:
Can someone PLEASE help me solve these problems, I need them by 9:59pm.
Answers
For what value of x are AXYZ and AJKL similar?
х
(3x)
34
Y
Z
Not drawn to scale
a. * = 12
b. x =18
0.
36
d x = 54
Answers
Answer:
I believe x = 12
Step-by-step explanation:
If the triangles were similar then they would have the same angle measures.
Steps:
Add angle K and L: 90 + 54 = 144
Subtract the added angles from 180 to find angle J: 180 - 144 = 36
Angle J is similar to angle X so, divide 36 by 3: 36/3 = 12
x = 12
The sweatshirt you purchased was on sale for $29.25, having been marked 35% off. What was the original price?
Answers
A triangle has side lengths 7 and 4. How long is the third side, c?
Answers
Answer:
5,7, or 9
Step-by-step explanation:
a,b and c are the sides of a triangle if it satisfies:
a<b+c , b<a+c and c<b+a
Here, a=4 and b=7
We have to find c
i.e. all those c which satisfies:
4<7+c , 7<4+c and c<4+7=11
Answer:
9
Step-by-step explanation:
David is saving money to but a part for his motorcycle. He has already saved some money and will continue saving the same amount of money each week. If the equation 200=20x+60 represents David’s savings for the motorcycle part, what does the number 60 represent?
Answers
Answer:
60 represents how much money he started with
Step-by-step explanation:
Answer:
answer is 60!
Step-by-step explanation:
well kind of complicated
SOMEONE HELP PLEASE I WIL GIVE BRAinlest could yu please help answer 1-9 and I would really be grateful if you explained how you did you please I really need help and please actually answer and don't just answer nonsense when you answer actually help cause nobody's going to help you if you do that to other people
Answers
Answer: For the first one, 12.5% chance
Step-by-step explanation:
The probability of flipping a coin and getting tails is 50%. Then, if you were to flip two coins and get both tails, you would have to divide the 50% by 2, which is equals to 25% of flipping two coins and getting them both tails.
So now we know...
Flipping one coin gives you 50% tails and 25% of flipping two coins and getting two tails
So now, we do it again with the third coin. We would divide the 25% by 2, which will get us to a 12.5% of getting all tails, or in fractions, 1/8
I’m not exactly sure about the other ones but I hope you found this one helpful!
TTT
TTH
THT
THH
HHH
HHT
HTH
HTT
(i believe thats all of the options, if not adjust as needed)
but TTT is 1 out of the 8 possibilities, making the probability of getting three tails 1/8 or .125
2. There are two possibilities for getting a sum equal to three with two dice being rolled. Rolling a 1 and rolling a 2 or rolling a 2 and rolling a one.
You have 36 different combinations total, making your fraction 2/36
2/36 still needs to be simplified by dividing by two
your answer is 1/18 or .55555 repeating
3. There is no black section on the spinner so there is no way to land on a black section. The probability is 0
4. I believe this question is asking about the theoretical probability of flipping a coin, which is 1/2 or .5
5. You’ve got a theoretical probability of 3/6 or 1/2 chance to roll less than a four. If you roll the cube 24 times, you should expect to get 12 (half of 24) rolls less than four.
6. The probability of choosing a red marble is 5/30 or 1/6. The marbles are always replaced so your probability doesn’t change.
Noah pulls 60 marbles out and replaces them. 1/6 of those marbles should be red.
1/6 of 60 is 10
10 marbles should be red
7. There are 11 balls total. 5 of those are green (5/11), 3 of them are red (3/11), 2 of them are white (2/11), and 1 of the balls is orange (1/11).
The probability of choosing an orange ball (the least occurring) is 1/11 or .090909 repeating
8. Adrian has a 1/4 chance of being put in any singular section. He volunteers 20 times. We’re trying to figure out how many times he was put in either the cat or the reptile section.
If we add the probabilities of the cat and reptile assignment, you get 1/2.
1/2 of 20 is 10
Keeping the probabilities separate and adding the occurrences together at the end will give you the same answer.
1/4 of 20 is 5
Add another 1/4, which is 5+5 and it’s 10
9. Let’s label the four sections on the spinner 1, 2, 3, and 4. The outcome of the coin flip will either be heads or tails.
The combinations could be:
1 H
2 H
3 H
4 H
1 T
2 T
3 T
4 T
That totals to 8 possible outcomes.
You can multiply the two outcome numbers together to achieve the the same answer:
2(4) = 8
Sam is mixing paint for his bedroom. IN a can he has mixed 4 oz of white paint with 1 oz of royal blue. HIs room will require one gallon of paint to cover all the walls. How much blue paint should he add to one gallon of white to create the color he likes? 128 oz = 1 gallon
Answers
Answer:
2 galonn at 10 balloon of the missing assignments and hair cut today I have a impostor you jesus po ba kayo ano yun sabaysabay you jesus
Answer:
32 oz blue paint.
Step-by-step explanation:
1 gallon= 132 oz
Convert 1 gallon to oz and set the proportions.
4 oz white/ 1 oz blue= 128 oz white/ x
Solve for x
128/4 = x
32=x
Will give brainlest if correct, and 5 stars.
Solve for x
Answers
Answer:
x = 54
Step-by-step explanation:
These angles are complementary because they add up to 90:
x - 7 + 43 = 90
x + 36 = 90
x = 90 - 36
x = 54
Answer:
54Step-by-step explanation:
Since the total of the two degrees makes a right angle, we know that the unknown degree has to be 47
Knowing this, we can add 7 to this. (This is the inverse of subtracting to eliminate 7)
47 + 7 = 54
So x = 54
We can verify by solving replacing x.
(54 - 7) = 47
47 + 43 = 90
plz helppppppp me qwq
Answers
Answer: For the first part
1250 = 150
1525 = 183
1850 = 222
2200 = 264
Step-by-step explanation:
7. An equation is shown. x + 5 = 14 Which of the values can be substituted for x to make the equation true?
Answers
Answer:
9 can be added to make equation true i .e 14=14
hope it helps.
Answer:
B.
Step-by-step explanation:
When you plug in 9 for this equation, you have 9 + 5 = 14, which is true.
If you plug in 7, you would have 7 + 5 = 14, which is actually 12. So, this is incorrect.
If you plug in 14, you would have 14 + 5 = 14, which is actually 19. So, this is incorrect.
If you plug in 19, you would have 19 + 5 = 14, which is actually 24. So, this is incorrect.
That leaves you with B.
Hope this helps! :)
