Marisa got an 85% on her math quiz. She had 34 questions correct. How many questions were on the quiz?
Answers
Answer:
40
Step-by-step explanation:
Set up a window pane method to solve this.
That picture is called the window pane method.
36 would go in the A section because it's part of the test questions not all of them. 100 would stay in its spot and 85% goes in the percent spot. The equation would look like this: 36 times 100 divided by 85 = 40
Related Questions
Please answer the question below
Answers
Answer:
11
Step-by-step explanation:
The revenue for a company producing widgets is given by y = -10x2 - 25x + 125, where x is the price in dollars for each widget. The cost of the production is given by y = 60x - 10. Determine the price that will allow the production of the widget to break even.
Answers
When they create 3.44 products and make a revenue of $76.027, they will break even.
Step-by-step explanation:
To do this, simply graph the 2 equation in a graphing calculator and analyze the graph for where the 2 graphs intersect. Discard the negative intersection because we cannot have a negative production. You should see that your intersection point is (3.441, 76.027).
what sign makes this comparison true?
> OR < (less than or greater than)
-9/10 -7/10
Answers
Answer:
greater than because that is what it is your welcome
For a function, each input(x) can only have ONE output (y). Is this a function?
Il-1, 1), (-1,0),(-1,-1),(-1,-2)}
Answers
Answer C
Step-by-step explanation:
Sausages come in packets of 7. Bread rolls come in packets of 5. Dan wants to buy enough packs of sausages and rolls so that there are an equal number of sausages and rolls. What is the minimum number of sausages and rolls he needs to buy?
Answers
Answer:
5 packs of sausages7 packs of rolls
Step-by-step explanation:
You need to find the common multiple.
5 x 7 = 35.
We know that before this there is no other common multiple becuase 7 does not multiply to a number that ends with a 0 or 5 until 35.
So, he will need to buy:
- 5 packs of sausages
- 7 packs of rolls
Answer:
7 packs of rolls
5 packs of sausages
Step-by-step explanation:
The easiest way to solve this question is to make a table with 3 columns
Rolls 5 10 15 20 25 30 35
Sausages 7 14 21 28 35 42 49
# packs 1 2 3 4 5 6 7
Looking at the table you can see that the first number that matches up is 35 so looking at that point we would need 7 packs of rolls and 5 packs of sausages.
Danny is opening a saving account. His initial deposit was $100. He makes $25 a week mowing his neighbors lawns, and he plans to put his earnings into the savings account each week. Write an equation in slope intercept form to model the amount of money in the bank account, y, after x weeks.
Answers
Answer:
y=100x+25
Step-by-step explanation:
I'm assuming you need an equation for this.
the answer is y = 100x + 25 or 25(4x+1)
How many solutions does this system of equations
have?
A: Infinitely many
B: Exactly two
C: None
D: Exactly one
Answers
Answer
d i think
Step-by-step explanation:
How do I solve y= -3x + 21 -2x +3y = 8 by substitution?
Answers
Answer:
x = 5
Step-by-step explanation:
substitute the y equation into -2x +3y =8 and you will get 5 as the solution :)
if a scarf is 25 percent off and normally cost 20 dollars how much will it cost after 6.5 percent sales tax is paid?
Answers
Answer:
$15.98
Step-by-step explanation:
25% off means it is 75% of its normal cost
0.75 x 20 = 15
The scarf is $15 after 25% discount. Then we calculate its final cost after tax:
6.5% = 0.065
1.065 x 15 = 15.975 which rounds to $15.98
Answer: 15.98
Step-by-step explanation: 25% off 20 is 15. 6.5% times 15 is .98 so the answer is 15.98
5.Select all of the expressions that are equivalent to 8x - 12
(3 Points)
a.4(2x - 3)
b.-12x + 8
c.6x + 2x - 12
d.8(x - 1) - 4
Answers
Answer:
A
Step-by-step explanation:
Braydon paid $94 for 6 meals. How much would 9 meals cost?
Answers
Answer:
assuming all the meals cost the same: about 141 dollars
Step-by-step explanation:
comment if explanation needed
GENERATE THE FIRST 4 Terms of f(n)=-2(n-1)+8
Help
Answers
Answer:
8, 6, 4, 2
Step-by-step explanation:
f(n)=-2(n-1)+8
Plug n =1
f(1)=-2(1-1)+8 = - 2*0+8 = 0+ 8 = 8
Plug n =2
f(1)=-2(2-1)+8 = - 2*1+8 = - 2+ 8 = 6
Plug n =3
f(1)=-2(3-1)+8 = -2*2+8 = -4+ 8 = 4
Plug n =4
f(1)=-2(4-1)+8 = -2*3+8 = -6+ 8 = 2
can someone help me w. this
Answers
Answer:
Step-by-step explanation:
(x, y) ----> (- x, y)
J(4, 1) ------> J' (- 4, 1)
K(1, 0) -----> K' (- 1, 0)
L(2, - 4) ----> L' (- 2, - 4)
what is the integer of The change in a balloon's volume when it loses 450 cm3 of air.
Answers
Answer:
The integer change is -450 cm^3
Step-by-step explanation:
Here, we want to write the integer of the change in the volume of a ballon when it loses 450 cm^3 of air
Losing this volume means we are subtracting 450 from the original volume
This represents a change of -450 cm^3
The graph of y = |x − 3| + 2 is reflected across the x-axis and then translated down 2 units. What is an equation of the transformed graph?
Answers
Answer:
y=-|x − 3|
Work
y = |x − 3| + 2
-2 -2
y = |x − 3|
add a neg before the absolute value
y=-|x − 3|
Transformation involves changing the position of a graph
The equation of the transformed graph is [tex]\mathbf{y = -|x -3| - 4}[/tex]
The equation is given as:
[tex]\mathbf{y = |x -3| + 2}[/tex]
The rule of reflection across the x-axis is:
[tex]\mathbf{(x,y) \to (x,-y)}[/tex]
So, we have:
[tex]\mathbf{y = -|x -3| - 2}[/tex]
The rule of translation 2 units down is:
[tex]\mathbf{(x,y) \to (x,y-2)}[/tex]
So, we have:
[tex]\mathbf{y = -|x -3| - 2 - 2}[/tex]
[tex]\mathbf{y = -|x -3| - 4}[/tex]
Hence, the equation of the transformed graph is [tex]\mathbf{y = -|x -3| - 4}[/tex]
Read more about transformation at:
https://brainly.com/question/11707700
Which statement describes a ratio?
Answers
Solve 2x2 + 3x = 20.
A. x = −10 and x = 3
B. x = five over two and x= −4
C. x = 5 and x = 2
D. x = negative five over two and x = −4
Answers
Answer:
x=5/2 or x=-4
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Hope this helps!
Need help on this thank you if you help
Answers
Answer:
a. 2/5
b. 1/2
c. 100/9
Step-by-step explanation:
a: Multiply bottom and top by 100 to keep values the same and make the fraction a whole fraction:
.12 × 100 = 12
.3 × 100 = 30
Simplify: 12/30 = 2/5
b: Multiply bottom and top by 1,000 to keep values the same and make the fraction a whole fraction:
.125 × 1,000 = 125
.25 × 1,000 = 250
Simplify: 125/250 = 1/2
c: Multiply bottom and top by 100 to keep values the same and make the fraction a whole fraction:
4 × 100 = 400
.36 × 100 = 36
Simplify: 400/36 = 100/9
I need help finding the slope
Answers
Answer:
slope=0.5
equation of the line= y=.5x+5
Step-by-step explanation:
[tex]x_{2}[/tex]-[tex]y_{2}[/tex]/[tex]x_{1}[/tex]-[tex]y_{1}[/tex] substitute your x and y values in
5.5-5/1-0=.5
5.5 is [tex]x_{2}[/tex] and 5 is [tex]y_{2}[/tex]
1 is [tex]x_{1}[/tex] and0 is [tex]y_{1}[/tex]
Hope this helps!
Mec mec is angry because she has to pay 10% tax in NY. She is ready to give the clerk the biz-ack hand, but instead pays it on a $70 item. How much tax did she pay?
Answers
Answer:
7$
Step-by-step explanation:
i took the test
whats the midpoint between -1,2 and -3,-4
Answers
Answer:
md(-2,-1)
Step-by-step explanation:
Md=(x1+x2/2,y1+y2/2)
or,Md=(-1-3/2,2-4/2)
or,Md=(-4/2,-2/2)
•°•Md=(-2,-1)
What is y-8=3(x+1) in standard form
Answers
Answer: 3x - y= -11
Step-by-step explanation: just rewrite in youre standard form equation
what is the value of the expression of 83-5x6
Answers
Answer:
x = 77/5
Step-by-step explanation:
I am going to assume that the equation is 83 - 5x = 6. First, we need to subtract 6 on both sides. So, our equation should look like 77 - 5x = 0
Then, add 5x to both sides. So, the equation should be 77 = 5x. Divide by 5 on both sides to get x = 77/5.
If Marlee rolls the number cube 12 times, how many times would she expect to get a number greater than 4
Answers
Answer:
i think its 6, but tell me is it multiple choice.
Step-by-step explanation:
m/4-1/2=m/6+5
Please help
Answers
Answer:
3m/12-6/12=2m/12+60/123m-2m/12=60-6/12m/12=54/12m=54/12×12m=54
is the correct answer is the 54
44.56 divided by 4.46
Answers
Answer:
9.99103139013
Step-by-step explanation:
For the rounded version it would be 10.00 rounded to the nearest whole
How do I write a slope intercept form from a graph
Answers
Answer:
Depending on your question
Step-by-step explanation:
For example if its (4,-2) you go 4 up because it's positive and 2 down because its negative. After, you connect those two coordinates and get your FINAL answer after.
Can somebody help me on this one
Answers
Hope it help
The diagonals of this rhombus are 8 and 16 units long. Their intersection creates four right angles, two 4-unit-long segments, and two 8-unit long segments. Given this information, find the area of the rhombus in square units (Use only the digits 0 – 9 and the decimal point, if needed, to enter a number).
Answers
Answer:
[tex]64\ \text{sq. units}[/tex]
Step-by-step explanation:
Area of a rhombus is the product of the length of the diagonals divided by two.
Length of one diagonal is 8 units and the other diagonal is 16 units
Area is given by
[tex]A=\dfrac{8\times 16}{2}\\\Rightarrow A=64\ \text{sq. units}[/tex]
The area of the rhombus is [tex]64\ \text{sq. units}[/tex]
Another approach is the diagonals have created 4 triangles where the base and is height is either 4 units long or 8 units long so the area of the rhombus would be the area of the 4 triangles.
[tex]A=4\times \dfrac{1}{2}\times 4\times 8\\\Rightarrow A=64\ \text{sq. units}[/tex]
Evaluate the function: f (x)=4x-1. Find f (5)
Answers
Answer:
f(5)= 4(5)-1
=20-1
=21
The evaluated value of f(5) is 19, which is determined by performing the arithmetic operations.
The linear function is given as follows:
f(x) = 4x - 1
To evaluate the function f(x) = 4x - 1 and find f(5), we substitute x = 5 into the function.
f(5) = 4(5) - 1
= 20 - 1
= 19
Therefore, f(5) is equal to 19.
The function f(x) = 4x - 1 represents a linear equation. In this case, when x is equal to 5, the value of f(x) can be calculated by substituting x = 5 into the equation.
By performing the necessary arithmetic operations, we find that f(5) is 19.
Learn more about the functions here:
brainly.com/question/12431044
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