Answer: A
Step-by-step explanation:
Could someone help me? Please.
Answer:
Step-by-step explanation:
Given the system of equations,
[tex]y=2x-3\\y=-x+3[/tex]
We can substitute one equations into another since both equations solve for y. I will use the second equation for this example.
Step 1: Substitute
[tex]-x+3=2x-3[/tex]
Step 2: Simplify
[tex]6=3x\\x=2[/tex]
Now, we can easily substitute our x value into one of the equations.
Step 3: Substitute.. again
[tex]y=-2+3\\y=1[/tex]
Solution: [tex](2,1)[/tex]
Graph is attached below :)
Hope this helped ya! <3
Selections
-One Solution
-No Solution
-Infinite Solution
...................................................................
Answer:
Let me explain. :)
Step-by-step explanation:
Step 1:
We know that Gherell has 75 marks. Delia has 5 marks less than Gherell, so we do 75-5 which is 70.
Step 2:
To find out Josiah's mark, we must find 20% of 70. Now, I am not sure if you learned how to find the percents and the amount of decrease, but if you calculate, it is 14. Then you do 70-14 because 14 is how many marks he lost, and that is 54.
Step 3:
Subtract 4 from 54 to get 50 marks.
Step 4:
Shevonne's marks are the average of both Josiah and Liam's mark, so we must find the average. The average is calculated by adding both Josiah and Liam's mark, and divide it by the number of people. [tex]\frac{Josiah+Liam}{2} = \frac{54+50}{2}[/tex]
Then, you get 104/2 which is 52. Shevonne has 10 more marks than the average, so you would add 10 to 52 which is 62.
There we have it! Hope it helped. :D
A point at (-7, -6) is reflected over the x-axis. What is the distance between the point and its reflection?
A. 6 units
B. 14 units
C. 12 units
D. 7 units
Erin gets her exercise by running. The graph shows the distances she covers in a given amount of time. How many hours does it take for Erin to run 25 miles? Distance (miles) y 60 50 9 20 10 0 2 3 4 Time (hours) 5 X 6
Answer:
2.5 hours (2 and 1/2)
Step-by-step explanation:
Every 1 hour, Erin runs 10 miles and so on. The ratio is 1:10 (2:20, 3:30, etc.) 25 is 20+5, and 5 is considered 1/2 of 10, so it would count as 0.5 (or 1/2). So in 2.5 hours Erin will run 25 miles. Hope it helped :>
Classify each pair of numbered angles as corresponding, alternate interior, alternate exterior, or none of these.
Drag and drop the choices into the boxes to correctly complete the table.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
corresponding alternate interior alternate exterior none of these
Answer: 1st one=alternate interior angles
2nd one=linear pair
3rd one=corresponding angles
4th one= alternate exterior angles
5th one= corresponding angles
Step-by-step explanation:
Find the surface area of the figure below. Round your answer to the nearest whole number.
Answer quick for 10 points!
Answer:
I think D? sry if its wrong tho :/
Step-by-step explanation:
Answer: D
Step-by-step explanation:
Please answer see attached photo
Answer:
Bolded below
Step-by-step explanation:
0-1 mile: 50%
1-2 miles: 78% - 50% = 28%
2-3 miles: 0.1 = 10%
3+ miles: 100% - (50% + 28% + 10%) = 12%
Hope this helps!
Distance from School Percent of Students
Within 1 mile 50%
Between 1 and 2 miles 78%
Between 2 and 3 miles 0.1%
More than 3 miles 21.9%
What is percentage?Percentage is a way of expressing a number as a fraction of 100. It is often denoted using the percent sign, "%". For example, 45% (read as "forty-five percent") is equal to 45⁄100, or 0.45. Percentage can be used to express how much of something there is compared to the whole.
The given data can be represented in a table to show the percent of students who are living at each distance from the school. The table shows that 50% of the students live within 1 mile from the school, 78% of the students live between 1 and 2 miles from the school, 0.1% of the students live between 2 and 3 miles from the school, and 21.9% of the students live more than 3 miles from the school. This is happening due to the fact that the majority of students live close to the school, hence the higher percentages of students living within the shorter distances and lower percentages of students living at the longer distances.
For more questions related to fraction
https://brainly.com/question/17220365
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Last year at a certain high school, there were 56 boys on the honor roll and 135 girls on the honor roll. This year, the number of boys on the honor roll increased by 25% and the number of girls on the honor roll increased by 20%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).
Answer: 18.5%
Step-by-step explanation: Last year, there were 56 boys and 135 girls on the honor roll, for a total of 191 students. This year, the number of boys on the honor roll increased by 25%, which means there are now 70 boys on the honor roll (56 * 1.25). The number of girls on the honor roll increased by 20%, which means there are now 162 girls on the honor roll (135 * 1.20).
The total number of students on the honor roll this year is therefore 70 + 162 = 232.
To find the percentage increase in the total number of students on the honor roll, we can use the formula:
percentage increase = (new value - old value) / old value * 100
Plugging in the numbers, we get:
percentage increase = (232 - 191) / 191 * 100 = 21.47%
Rounding to the nearest tenth, we get an increase of approximately 18.5%.
Hope this helps, and have a great day!
Help please will mark brainliest
2.5 x 10 -13 , the last one
You pick a card at random What is P(factor of 48)?
Answer:
48 = {1,2,3,6,8,48.}
Step-by-step explanation:
These are the factors if 48. if it's correct please let me know.
Could someone help me quickly please?
Answer: 65 advance tickets
Step-by-step explanation:
Answer:
Advance tickets sold: 30
Same-day tickets sold: 25
Step-by-step explanation:
So, let's assume that the number of advance tickets is the variable [tex]x[/tex], and the number of same-day tickets is [tex]y[/tex].
Since the cost of advance tickets is $25 dollars, we can show that using [tex]25x[/tex], and the cost of same-day tickets is $35, we can show that with [tex]35y[/tex]. The total cost of the tickets is $1625 and the total number of tickets is 55.
Now, let's form a system of equations with this information.
[tex]25x+35y=1625\\x+y=55[/tex]
Step 1: Rearrange equation so that it solves for a variable
[tex]x+y=55[/tex] can be rewritten as [tex]y=-x+55[/tex]
Step 2: Substitute
[tex]y=-x+55[/tex], so, we can write this in the first equation as: [tex]25x+35(-x+55)=1625[/tex]
Step 3: Simplify
[tex]25x-35x+1925=1625\\-10x=-300\\x=30[/tex]
So the number of advance tickets sold are 30.
Now, let's solve for the number of same-day tickets sold.
Step 4: Solve for y
Using our equation from above ([tex]y=-x+55[/tex]), we can substitute the value that we solved for ([tex]x=30[/tex]) to solve for the variable y.
[tex]y=-30+55\\y=25[/tex]
The number of same-day tickets sold are 25.
Hope this helped ya :)
Identify the first quartile, and the third quartile of the following data.
5, 1, 4, 0, 9, 0, −8, 5, 2, 4, −1, 10, 7, −5
(VOTING BRAINLIEST FOR CORRECT ANSWER)
Answer:
Q1=0.5 Q3=6
Step-by-step explanation:
To find the quartiles, we first need to put the data set in order from smallest to largest:
−8, −5, −1, 0, 0, 1, 2, 4, 4, 5, 5, 7, 9, 10
There are 14 data points, so the median is the average of the 7th and 8th numbers, which is (2+4)/2 = 3.
Now we divide the data set into two halves, the lower half and the upper half, not including the median.
Lower half: −8, −5, −1, 0, 0, 1, 2
Upper half: 4, 4, 5, 5, 7, 9, 10
To find the first quartile, we take the median of the lower half of the data set. There are 7 numbers in the lower half, so the median is the average of the 4th and 5th numbers, which is (0+1)/2 = 0.5.
To find the third quartile, we take the median of the upper half of the data set. There are 7 numbers in the upper half, so the median is the average of the 4th and 5th numbers, which is (5+7)/2 = 6.
Therefore, the first quartile is 0.5 and the third quartile is 6.
A triangle has a base of 24 inches and an area of 260 square inches. Which equation can be used to find h, the height of the triangle?
Answer: h=260/12
Step-by-step explanation:
A=BxH/2
A=260 sq. in
260 sq. in=BxH/2
B=24 in
260sq. in=24inxH/2
Simplify
260sq. in=12inxH
Divide both sides by 12in
260/12 in = H
you run 1 3/4 miles each day. your friend runs 4 times as far as you do. how far does your friend run each day?
Answer: answer is 7
Step-by-step explanation: 7/4 x 4 = 7
Please help me please
Answer:
15
Step-by-step explanation:
A=(a+b)/ 2 x h
A= (4+6)/ 2 x 3
A= 15
If I am wrong then please let me know
Can someone answer this please?????
Answer: y=-7
Step-by-step explanation:
solve 5x+2y =-4 for x
Add -2y to both sides
divide both sides by five
substitue -2/5y +-4/5 for x in 3X +10 Y equals -64
44/5 + -12/5 equals -64
Simply both sides
add 12/5 to both sides
Divided by 44/5
y= -7
Answer:
Hence The Value of Y=-2 at the intersecting point
Step-by-step explanation:
Given the equation
5x+2y=-4 and 3x+10y=-64
are intersected at X=2 to find the value of y
solution the equation 5x+2y=-4 and 3x+10y=-64
are intersect at x=2 means x=2 satisfied both equations so x=2 put in the
1st equation
5 x 2+2y=-4
2y=-4 -1 0= -14
y= -7
Which of these is closest to the measure of the angle?
Choose 1 answer:
A. 120∘ degrees
B. 180∘ degrees
C. 60∘ degrees
D. 270∘ degrees
Answer: D
Step-by-step explanation:
180+90= 270
90x3=270
what is this (6x+4)+26=90 ?
Answer:
x=10
Step-by-step explanation:
(6x+4)+26=90
6x+4+26=90
6x+30-30=90-30
6x÷6=60÷6
x=10
Answer:
the answer is X=10
(6x+4)+26=90
6x +30=90
6x= 90÷30
6x=60
X = 60÷6
X= 10
What is the surface area of the rectangular prism below if the rectangular base measures 6
feet by 8 feet and each face has a height of 12 feet?
A 216 square feet
B 336 square feet
C 432 square feet
D 576 square feet
Answer: 576 square feet
Step-by-step explanation:
math state test review
Answer:
B
Step-by-step explanation:
278-278 =0
so nothing has changes
can someone pls help
Step-by-step explanation:
A triangle has its interior angle sum as 180°
[tex]{ \tt{ \angle R + \angle S + \angle T = 180 \degree}}[/tex]
[tex]{ \colorbox{silver}{input \: angles}} \\ \\ { \tt{31 \degree + (x + 4) \degree + (3x + 9) \degree = 180 \degree}} \\ \\ { \tt{44 + 4x = 180 \degree}} \\ \\ { \tt{4x = 136}} \\ \\ { \tt{x = 34}} \\ \\ { \colorbox{silver}{for \:R }} \\ \\ { \tt{ m\angle S =x + 4 = 34 + 4}} \\ \\ { \boxed{ \tt{m \angle S = 38 \degree}}} \\ \\ { \colorbox{silver}{for \:T }} \\ \\ { \tt{m \angle T = 3x + 9 = (3 \times 34) + 9}} \\ \\ { \tt{m \angle T = 111 \degree}}[/tex]
can you guys help me please thank you sm!!!
:)
The population of a city decreases by 1.7% per year. If this year's population is 192,000, what will next year's population be, to the nearest individual?
Answer: 188,736
Step-by-step explanation:
The original amount is 192,000. Every year, the population decreases by 1.7%, which means that the population is 98.3% of last year's.
0.983 * 192,000 = 188,736
What is the definition used to find angle A?
Answer:
vertically opposite angles
Step-by-step explanation:
A=66°
PLEASE HELP ME
Solve the equation using inverse operations. Check your solutions. In you final answer, include all of your work
-X²= - 36
On a chapter test, Stephanie uses the rules of equation solving and inverse operations to solve the cubic equation below. The directions on the test are not very specific; however, they do say to give an exact solution. Stephanie is not sure if she should submit a decimal approximation or a simplified radical as the answer.
4x³=756
What recommendation can you make to Stephanie regarding her answer to the cubic equation above? In your recommendation, explain what the term "exact" indicates with regards to the solution.
Solve the cubic equation from Stephanie’s test. Submit two solutions for the equation- a) your answer as a decimal approximation, rounded to the nearest hundredth, and b) as a simplified radical. Use substitution to check each version of your solution in the original equation.
After solving the test question and checking both the decimal solution and the simplified radical form, would you change your recommendation (in Part 1) to Stephanie regarding the format of her answer? Use complete sentences to explain your reasoning.
Answer: The answer is -6.
Step-by-step explanation:
The first step in solving -X²= - 36 is to simplify the expression. Then, divide both sides by the same factor. You'll get X² - 36 = 0.
After that, you need to use the quadratic formula. Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula. a=1, b=0, and c=-36.
Finally, you need to simplify the expression. First, evaluate the exponent. Then multiply the numbers. After that, Add the numbers and evaluate the square root. Add zero, and then multiply the numbers again. You get +12/2, which simplifies into X = 6. Add the negative, and you get X = -6.
I hope it helped! :)
I need help because this is my pre algebra test and my teacher is checking our screens so hurrhy
Can someone Please help me.
Answer:
proofs attached to answer
Step-by-step explanation:
proofs attached to answer
someone, please help. also, solve if possible
Step-by-step explanation: Well, it’s asking you to write an equation for it in Y=MX+B format. That would be something like y=4x+2 (not the answer.) There are 4 different points on here. A, b, c, and d. There is an incomplete equation, 2x+1. There is also a degree, 33. This shape that these lines formed also have a 90 degree angle, as you can see next to the B. It’s pretty much 3 angles out together. Find the degrees for the two other angles, after you do that, use a formula like this, 1+2, then subtract the answer from 180 degrees. If the number turned out negative, then subtract 180 from the answer instead. That will get you far enough to actually form the equation.