70 POINTS!!! Marta tried solve the system below, but she made a mistake. Read carefully and try to figure out what her mistake was.
Finding Mistakes in a Solution
What was Marta’s mistake? Explain.
will give brainliest
Answers
Answer:
she forgot the first part
Also: sorry if its wrong I'm not the best at math
Answer:
The answer is 0
Step-by-step explanation:
Related Questions
5. SLOPE need help like, ASAP, tysm
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Answer:
Since it's a horizontal line the slope would be 0
Step-by-step explanation:
Horizontal Lines A horizontal line is a line whose equation is of the form =, where is a real number. All points that lie on the line have a -coordinate of . The slope of any horizontal line is zero, 0.
Graph a line a slope of 2/5 that contains the point (-2,4).
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Please help me in a hurry
Answers
Answer:
1049.05
Step-by-step explanation:
Answer:
1049.05
Step-by-step explanation:
(Please read the question carefully) Answer is not B
Rogelio sold a 1/3-page ad to client A, a 3/4-page ad to client B, and a 1/8-page ad to client C. Rogelio says he sold about 1 1/2 pages of ads. Is he right? (EXPLAIN.)
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If you add all the fractions you would get, 29/24 which is not equal to 1 1/2.
can u help please. thank you
Answers
Answer: the answer would be - 8/9
i used a calculator, so its correct.
Step-by-step explanation:
Answer:
negative one half D
Step-by-step explanation:
Multiply - two thirds x six eightths 6x2=12 you can multiply straight acroos because it is multiplycation. Now you do 8x3= 24 half of 12 is 24 so 12 over 24 simplifying is just dividing. but if you look closer their is a negative sign so what ever fraction is biger you go with their sign so your offical awnser is negative one half
The graph shows the amount of water that remains in a barrel after it begins to leak. The variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. What does the y-intercept represent?
A. the amount of water that is added to the barrel each day
B. the amount of water that remains in the water barrel
C. the amount of water that is initially in the water barrel
D. the amount that the water barrel decreases each day
Answers
Answer:
I am pretty sure it is D
Step-by-step explanation:
Chart and assignment above, any actual help is appreciated!! Eighth grade math :)
1. How many cars per day does Car Mart sell? How did you use the table to find this rate?
2. How many cars per day does Winston's sell? Explain how you found this rate.
3. Which dealership sells more cars per day? How many more?
4. Which dealership started with more cars? How many more cars did that dealership start with?
Explain how you found your answer.
Answers
You can use the table by looking at day 2 and day 3. You can see underneath it, it shows how many cars is left after that particular day. So from day 2, you have 43 cars left and day 3, you got 32 cars left. From 43 car to 32 car is losing 11 car. So each day the Car Mart sell 11 car.
2. First we know that after 3 days, Winston have 32 cars left and after 5 day, it has 12 cars left.
Here’s the chart that I made for Winston:
Each day, Winston’s sell 10 cars. (Lose 10 cars per day)
1. Car Mart sells 11 cars a day.
2. Winston's sells 10 cars per day.
3. Car Mart sells one more car per day.
4. Winston started with more cars.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Rate for Winston auto dealer is (32 - 12)/(3 - 5) = - 10.
Rate for cart mart is (32 - 43)/(3 - 2) = - 11.
Car Mart sells 11 cars a day.
Winston's sells 10 cars per day.
Car Mart sells more cars per day.
As cart mart has 43 crs left on the second day he must had 10 more cars on the starting day which is 53.
As Winston had 32 cars on the 3rd day it must had (32 + 11 + 11 ) = 54 cars on the started day so Winston started with more cars.
learn more about lines and slopes here :
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When a volcano erupts, the height of the peak is reduced and the upper portion is removed. The height of a volcano after it erupted was 8,219.5 feet. This was 85% of the volcano's original height. What was the original height?
(answer this and show your work please thank you)
The original height was _answer this_ feet.
please help me with this thank you
Answers
Answer:
9670 feet
Step-by-step explanation:
The height given (8219.5 ft) is 85% OF ORIGINAL, hence original is much higher. But how do we figure this out?
we translate word problem to equation.
8219.5 IS 85% of TOTAL
Firstly, 85% = 85/100 = 0.85
Remember, is means =
of means multiplication
So we have:
8219.5 = 0.85 * Total
Hence, total = [let total be 7]
8219.5 = 0.85 * t
t = 8219.5/0.85 = 9670 feet
Please answer C: <3!
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Help please!!!!! this is a test!!!!
Evaluate C = 2r, for r = 8.
C = 16
C = 10
C = 28
C = 16
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Answer:
16
Step-by-step explanation:
Given
C=2r and r=8
So
C=2×8 (as r=8)
C=16 (ans)
Answer:
16
Step-by-step explanation:
The scatter plot shows the number of days that several homes have been for sale co.pared to the number of times the house has been viewed.
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Answer:
It would be the scattered pot - how many
Step-by-step explanation:
Solve for y and find the value of y for each value of x
x + 2/y - 3 = 1 x = -1, 0, 1
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Answer:
2x 2y -1
Step-by-step explanation:
x plus 1x equals 2x and 2y equals 2 y and 1 plus 1 minus 3
Answer:
2x yx -2
Step-by-step explanation:
How do I solve number 4 and 5?
Answers
Answer:
Ummm...
Step-by-step explanation:
Answer:
4)71-x=180
x=109
5)60-x=180
x=120
Step-by-step explanation:
4) 32+72=109, 109-180=71, 71-180=109
71 is the last measure of the triangle so you just subtract that from 180.
5)180-60=120
HELP PLEASE!! I WILL TRY AND GIVE BRAINLEIST TO THE MOST DETAILED ANSWER ON BOTH. INCOMPLETE ANSWERS WONT BE GIVEN BRAINLEIST. ALSO, DON'T USE GOOGLE. PLEASE! I'M IN NEED OF HELP.
Answers
Answer:
100 x 38
Step-by-step explanation:
100
x 38
-------
3800 <------ Is the product. It is bshown lby...
The left side
Has been shaded green with 46 blocks.
The red is the same thing with 46 blocks.
The blue has eight blue blocks from the second side.
The second side:
This show's about 38 shaded blue blocks.
The white side doesn't.
I hope this helps! My brother helped me figure out this also.
Write a proportion that could be used to solve for each variable.
Then solve.
24 buttons in 4 packages
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Answer:
6 buttons per package
Step-by-step explanation:
6 x 4=24
Given f(x)=2^x and g(x)= f(x-3)+4, write the new function rule (equation) for function g and describe (using words) the two transformations that occur between the function f and the function g
*Some good words to consider using would include horizontal, vertical, stretch, compression,
translation, reflection, and phrases such as “to the left”, “to the right”, “up”, “down”, “by a
factor of__, or ”over the __ axis”.
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Answer:
Just like Transformations in Geometry, we can move and resize the graphs of functions. Let us start with a function, in this case it is f(x) = x2, but it could be anything: ... g(x) = x2 + C. Note: to move the ... If you change that to (age+4) = 25 then you will get it when you are 21. Adding 4 ... Example: the function v(x) = x3 - x2 + 4x.
Step-by-step explanation:
The graph of the function y = 2x⁴ - 5x³ + x² - 2x + 4 is plotted and attached.
What is a polynomial?Polynomial is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s). For example -
y = 4x⁴ + 3x³ + 2x² + 6x + 7
We have the following polynomial functions -
f(x) = 2ˣ
g(x) = f(x - 3) + 4
We can write g(x) as -
g(x) = 2ˣ ⁻ ³ + 4 = (2ˣ/2³) + 4
g(x) = (2ˣ/8) + 4
The graph of f(x) is stretched by the factor of 1/8 and is shifted 4 units upwards.
Therefore, the graph of f(x) is stretched by the factor of 1/8 and is shifted 4 units upwards to given the function g(x)
To solve more questions on polynomials, visit the link below-
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here it is love please be quick:) thx again!!
Answers
Answer:
-3.1=x or x=-3.1
Step-by-step explanation:
Equation: 5.1=-3x-4.2
Adding 4.2 on both sides
5.1=-3x-4.2
+4.2 +4.2
Which equals:
9.3/-3=-3x/-3
Divide -3 on both sides:
-3.1=x or x=-3.1
Hope this helps!
Answer:
x=-3.1
Step-by-step explanation:
Use Cy-math next time for a problem like this
What is the Inverse Operation of a Square Root ?
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Answer:
The inverse is squaring a number
Step-by-step explanation:
i hope this helps
Power is the result of multiplying two numbers together. The inverse operation of a square root is a square.
What is power?Power is the result of multiplying two numbers together. Power is typically expressed by a base number and an exponent. The base number indicates the number being multiplied. The exponent, which is a little number printed above and to the right of the base number, indicates the number of times the base number is multiplied.
The radical is the symbol that is used to represent the root in the expression n√x. When the value of n in this radical is 2, then it is known as the square root.
The inverse operation of a square root is a square, which means that the expression is needed to be multiplied by itself.
Hence, The inverse operation of a square root is a square.
Learn more about Power here:
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178·37−37·78
Plz find in binary
If not able: Say no solution.
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Solve for a.
12494a-194879=1928777
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Answer:
169.974068
Step-by-step explanation:
12494a-194879=1928777
+194879= +194879
12494a = 2123656
÷ 12494 = ÷ 12494
a = 169.974068
Explanation:
PLEASE HELP!!!!! AHHHH IM BAD AT MATH!!!!
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Can somebody help with number 1
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Answer:
A.4:00
B.1-2 p.m.
C. ii iii
Step-by-step explanation:
LEIM deposits some money in an account which pays 5% simple interest per year, and twice that amount in an account paying 4% simple interest per year. If he collects $533.00 in interest after one year, how much did he deposit in the account that has a 5% rate?
Answers
Answer:
266.5
Step-by-step explanation:
$533.00* 5%=266.5
PLZ HELP
What is the y-intercept of the table shown?
2
0.4
1
0
Which one?
Answers
I think it is 0.4 I think this because 0.4 is right below 1.4 Hope this helps! =D
Answer: 1
Step-by-step explanation
1. y is the slope so 1 is the intercept y=1x+0.4
x / y
-------
0 1
2 1.4
4 1.8
6 2.2
Try to dived [tex]\frac{2}{1.4} -\frac{4}{1.8}[/tex]
heeeeeeeeeeellllllllllllllllllllllllllllpppppppppppppppppppppp
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Answer:
A
Step-by-step explanation:
Which is an independent clause?
A. Their mother had sent them to Grandmother's home
B. because she could not care for them herself
C. After living in San Francisco for ten years
D. a place she had never seen before
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Help plz rlly need the answer
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PLS HELP ME ASAP PLS AND TY
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Answer:
-801
Step-by-step explanation:
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can you give me brainliness
Answer:
I think I am not sure but it looks like they are both negative numbers, so maybe try doing 1,681-880 which is -801
Step-by-step explanation:
you can double check by doing -880+ -801= 1,681.
help please help please
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Answer: It should be 144 in total
Step-by-step explanation:
I did the math
Line and angle relationships
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Answer:
hmmnsjsuehdhyeenfhdidudhfksiw9qkq