Please help
Charles correctly answered 23 questions on a test receiving a grade of 92% how many questions where on the test
Answer:
25
Step-by-step explanation:
Cross multiply
23/x=92/100
x=25
There were approximately 25 questions on the test.
To determine the number of questions on the test, we can set up a proportion based on Charles' correct answers and the grade received.
Let x be the total number of questions on the test.
We can set up the proportion:
23 (Charles' correct answers) / x (total number of questions) = 92% (grade as a decimal: 0.92)
This can be written as:
23 / x = 0.92
To solve for x, we can multiply both sides of the equation by x:
23 = 0.92 * x
Dividing both sides by 0.92:
23 / 0.92 = x
x ≈ 25
Therefore, there were approximately 25 questions on the test.
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Kiley was solving the equation: y= x ÷ 2 + 1 . Her first three y numbers were 3, 5, and 7. Her friend Gia said the ordered pair for the next number would be (16,9). Kiley disagrees. Why is Kiley correct?
Writing Equations of lines
Answer:
y = -5/3x+8
Step-by-step explanation:
Equation: y=mx+b
You find the slope (m) by calculating the distance between the two points. For the y axis, 3 is -5 away from 8. For the x axis, 3 is 3 away from 0. You then devide y by x, which gives you -5/3.
To get the y intercept (b), you just look at the graph, where it's at 8.
God luck!
Answer:
y = -5/3x + 8
Step-by-step explanation:
Points on the graph: (0, 8) and (3, 3)
Slope:
m=(y2-y1)/(x2-x1)
m=(3-8)/(3-0)
m= (-5)/3
m= -5/3
Slope-intercept:
y - y1 = m(x - x1)
y - 8 = -5/3(x - 0)
y - 8 = -5/3x
y = -5/3x + 8
Ben loses 26% of this investment. He used to have 180 . How many does he have now?
Answer:
133.2
Step-by-step explanation:
26% * 180 = 46.8
180 - 46.8 = 133.2
Answer:
133.2
Step-by-step explanation:
Ben now has 74% of his investment left:
180 x .74 = 133.2
I haven't been using this for 1 year and 1/2. I got charged $24.00 out of no where! I want my money back!
Answer:
I cannot help you with that because I have the free part.
Maybe un-subscribe or go to the faq site for Brainly and ask that question there.
Step-by-step explanation:
Hope that this helps you out! :)
If you have any questions please put them in the comment section below this answer.
Have a great rest of your day/night!
Please thank me on my profile if this answer has helped you.
if d = 14in, what is the radius?
Answer:
radius= 7
Step-by-step explanation:
the radius is half of the diameter.
i hope this helps :)
Answer:
The radius is 7in.
Step-by-step explanation:
D stands for diameter. To find the radius, you divide the diameter by 2.
14/2 = 7
Therefore, the radius is 7.
Complete the question
Answer:
$625 on groceries
Step-by-step explanation:
The number is 25%, which is 1/4 of $2,500, so we need to find 1/4 of 2,500
2500/4=625
That is how you solve it using division.
Hope this helps!
what is the vertex of the quadratic function right your answer as an ordered pair
with steps
y=2x^2-12x+14
Answer:
(3.-4)
Step-by-step explanation:
The vertex of a parabola is the point where the parabola crosses its axis of symmetry. If the coefficient of the x2 term is positive, the vertex will be the lowest point on the graph, the point at the bottom of the “ U ”-shape.
What is the mean of the normal distribution shown below?
A normal distribution is shown. The curve peaks at 0.
Group of answer choices
-1
0
3
1
Answer:
zero myyyy duedes
Step-by-step explanation:
0.8(m - 5) = 10
What is m equal to?
Answer:
Step-by-step explanation:
I can help
Step 1
0.8(m - 5) = 10 Simplify
Step 2
0.8(m - 5) = 10 simplify the equation
0.8m-4=10
Step 3
0.8m-4=10 Add 4 to the sides
0.8m=14
Step 4
0.8m=14 Divide the sides by 0.8
17.5
Answer
m=17.5
Hope this helps
What is 8993838383 x 4?
Answer:35975353532 is your answer hope this helped
Step-by-step explanation:
pleas make brainly
Express 48 as a percentage of 155.
Answer:
30.97
Step-by-step explanation:
if you multiply 48 by 100 (because thats what your trying to express)
You will get 4800
Then just divide 4800 by 155, and that will give you 30.97(2.dp)
There is a question here it is a pic
Answer:
The area would be 81.
Step-by-step explanation:
To find this answer, I multiplied 9 by 9 cm , which gave me 81, which would represent the correct area of the figure.
Answer:
81
Step-by-step explanation:
In order to find the area, multiply
A = l × w
A video game was originally priced at $60.
The store owner gives a discount and the video game is now priced at $43.
What is the percent change for the cost of the video game?
%
*Remember:
1.) Find the Change: Old value- new value
2.) Divide the answer by the old value
3.) Multiply by 100
Answer: 71
Step-by-step explanation: fine the new value and Divided by the old value then multiplied by 100 then you get your answer
I’ll give brainliest please help
Answer:
60% increase
Step-by-step explanation:
hope this helps
Each recipe for lasagna requires half a pound of ricotta cheese. How many recipes of lasagna can be made at a restaurant that has 6 pounds of ricotta, assuming all other ingredients are present
Answer:
12
Step-by-step explanation:
Two half pounds equal a whole pound, so if there are 6 whole pounds, there are 12 half pounds.
someone please solve this question
Answer:
do you have what x and/or y equals
Step-by-step explanation:
what is the slope of the line?
What is the y-intercept?
Write the equation of the line?
Answer:
Slope is 2
Y-intercept is 3
equation is y=2x+3
A line is parallel to y = 3x - 2 and
intersects the point (3,5).
Write the equation in slope-intercept form.
y - 5 = 3(x-3)
y = [?]x + [ ]
Answer:
Just give me some minutes and I'll help you
Step-by-step explanation:
Formula: Y=mx+b
y= 3x-2 (3,5)
x,y
Answer y= 3x+5
The coefficient of x is the slope of the parallel line, option (C) m=3 is the correct answer.
What is slope of a line?The slope or gradient of a line is a number that describes both the direction X and Y and the steepness of the line. It is the ratio of the vertical change to the horizontal change between any two distinct points on a line.
For the above situation,
The equation is y = 3x - 2.
The general form of equation for slope intercept form is [tex]y = mx + b[/tex]
Now compare the given equation with the general equation,
⇒ [tex]m=3[/tex].
Since the lines are parallel, the slope will be the same for all lines.
So, slope for the parallel line is also m = 3.
Now the equation in slope-intercept form that intersects the point (3,5) is
⇒ [tex]y - y1 = m(x-x1)[/tex]
⇒ [tex]y - 5 = 3(x-3)[/tex]
⇒ [tex]y-5=3x-9[/tex]
⇒ [tex]y=3x-9+5[/tex]
⇒ [tex]y=3x-4[/tex]
Hence we can conclude that the coefficient of x is the slope of the parallel line, option (C) m=3 is the correct answer.
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Please answer ASAP I need it in 10 minutes
A savings account that earns 1% interest compounded annually is opened with an initial deposit of $250. If no further deposits or withdrawals are made and the expression
250 * x^t gives the balance of the account after t years, what is the value of x?
Answer:
cheese 123
Step-by-step explanation: i am sorry i need points
HELP!!!!!Which property can you apply to Hayley's expression to show that it is equivalent to Gretchen's expression?
Complete question :
Gretchen and her friend Hayley bought three bags of apples and three bunches of bananas from the fruit vendor. Gretchen and Hayley want to find the total number of pieces of fruit that they bought. Gretchen thinks she should multiply 3 by the number of apples in each bag, x, and add it to 3 times the number of bananas in each bunch, y, to find the total number of pieces of fruit. Hayley thinks Gretchen should add the number of apples in each bag, x, to the number of bananas in each bunch, y, and then multiply that sum by 3.
Which property can you apply to Hayley’s expression to show that it is equivalent to Gretchen’s expression?
Answer:
The distributive property of multiplication
Step-by-step explanation:
Number of apples per bag = x
Number of bananas per bunch = y
3 each of bananas and apples were bought
Expression to obtain the total fruits bought :
Gretchen's expression :
3x + 3y
Haley's expression :
3(x + y)
According to the distributive property :
Haley's equation :
3(x + y)
(3 * x) + (3 * y)
3x + 3y
Hence, Gretchen's expression = Haley's expression by the distributive property of multiplication.
fill in the blank !!
Answer:
multipclation invearse :) HOPE THIS HELPSS
Step-by-step explanation:
I REALLY NEED HELP!
Han has 10 cubes, every 5 inches on a side.
Find the total volume of Han’s cubes. Express your answer as an expression using an exponent.
Find the total surface area of Han’s cubes. Express your answer as an expression using an exponent.
Answer:
Cube with side 5 has volume:
V = 5³ in³10 cubes have volume:
V = 10*5³ inCube has surface area:
S = 6*5² in²10 cubes have surface area:
S = 10*6*5² = 60*5² = 12*5³ in²solve the system of equations x + y = 0 and x + 9y= -48 by combing the eqatuons
Answer:
x = 6
y = -6
Step-by-step explanation:
x + y = 0 (Multiply by -1)
x + 9y= -48
-x - y = 0
x + 9y= -48
8y = -48
y = -6
x + y = 0
x - 6 = 0
x = 6
I need help on these 4. Please help me. Don’t put a link. Please help me.
Write an equation of the line below.
Answer:
y = -x
Step-by-step explanation:
This has a negative slope. :)
Answer:
y=-6/8x+0.
Step-by-step explanation:
You go up 6 from the point, 8 to the left, getting you to the y intercept. Which is 0.
write an equation of the line passing through the point A(-1, 5) that is perpendicular to the line y=1/7x+4
y = 1/7x + 4
1/7 * a2 = -1
a2 = -7
y = -7x + b
A = (-1, 5)
-7 * (-1) + b = 5
7 + b = 5
b = -2
y = -7x - 2
ILL BRAINLIEST YOU IF YOU GET IT RIGHT
Answer:
the answer is b Both pairs are parallel to each other
Answer: its b, shawty
Step-by-step explanation:
probably
HELP HELP HELP PLEASE
[tex]\huge\underline{\sf Answer:}[/tex]
[tex] \\{ \sf A \: number \: that \: is \: multiplied \: by \: another \: number \: to \: find \: a \: product \: is \: a \: factor.}[/tex]
When x=6,y=14.find y when x=30
Answer:
y = 70
Step-by-step explanation:
6 x 5 = 30
14 x 5 = 70
