Ms. Thompson reported her students' scores on their most recent test. How many students scored at least 80
Answers
Answer:
5
Step-by-step explanation:
5 scored in the 80's and 0 scored in the 90's
anything less than 80 would not be counted
Answer: I think it's 85 , I hope this helped if not I totally understand .
Step-by-step explanation:
Related Questions
Evaluate the following expression, when x=-2
2x^2+4x-3
A) 3
B) 3
C) -19
D) 9
Answers
Answer:
A) -3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightStep-by-step explanation:
Step 1: Define
2x² + 4x - 3
x = -2
Step 2: Evaluate
Substitute in x: 2(-2)² + 4(-2) - 3Exponents: 2(4) + 4(-2) - 3Multiply: 8 - 8 - 3Subtract: -3Answer:
[tex]\huge\boxed{\text{A) -3}}[/tex]
Step-by-step explanation:
To find the value of this equation when [tex]x=-2[/tex], we can substitute this value inside the equation and use PEMDAS to successfully find the value.
With the expression of [tex]2x^2+4x-3[/tex], let's substitute -2 in as x.
[tex]2(-2)^2 + 4(-2) - 3[/tex]Now let's follow PEMDAS to solve this equation.
PEMDAS states that when solving an expression/equation, the order we must follow is
ParenthesesExponentsMultiplication/DivisionAddition/SubtractionWe can now solve for this.
We see that exponents come before multiply and dividing. Therefore:
[tex]2(-2)^2 = 2 \cdot (-2)^2 = 2 \cdot 4 = 8[/tex]So the value of our first term is 8.
Our second term will be [tex]4 \cdot -2 = -8[/tex], and our last term will remain -3.
Adding these values together:
[tex]8 - 8 - 3 = -3[/tex]
Therefore, the value of this expression when x = -2 is -3.
Hope this helped!
The 14 businesses in a shopping center each pay an equal share of the center’s electric bill. This month, they used 2,996 kilowatt-hours of electricity. How many kilowatt-hours must each business pay for?
Answers
The units of electricity consumed by each of the businesses is given as 214 KWh.
What are arithmetic operations?The arithmetic operations are the fundamentals of all mathematical operations. The example of these operators are addition, subtraction, multiplication and division.
The total units of used electricity is given as 2996 KWh.
Number of businesses are 14.
Then, the electricity used by each can be obtained by following operation as,
Total Electricity unit ÷ Number of businesses
⇒ 2996 ÷ 14
⇒ 214
Hence, the number of units consumed by each business is given as 214 KWh.
To know more about arithmetic operation click on,
https://brainly.com/question/25834626
#SPJ2
he circle graph shows the fraction of each type of weather during September. What percent of the days were sunny? Show your work
Rainy-4/25
Sunny-11/25
Partly cloudy-3/10
Cloudy-1/10
Answers
to get that, i multipled 25 times 4 to get 100
then, whatever you do to the bottom you have to do to the top so i multipled 11 by 4 to get 44/100 which equals 44%
Answer:
Sunny 44%, Rainy 16%, Sunny or Rainy 60% and Cloudy or Partly cloudy 40%
Step-by-step explanation:
Can someone plz help me !!!
Answers
Answer:
53! good luck and stay safe<3
i made this so you can get points lol soo how was your day?
Answers
Answer:
just woke and interesting
Answer:
awwwwwzz it's so cute and nice<3<3<3<3<3<3
Step-by-step explanation:
my days going pretty good hbu?
Which describes the relationship between: ∠QVP and ∠PVU?
Answers
Answer:
Nothing to choose an answer from...
Step-by-step explanation:
I REALLY NEED HELP ASAP!!!!!!!!!!!!!!
Answers
Answer:
cone V≈157.08
cylinder V≈502.65
sphere V≈113.1
the cubic units/ volume of each 3D shapes are:
cone .1 =157.08
cilindar .2 =502.65
sphere .3 =113.1
Hello! Who can answer this?
Answers
Answer:
if it is a fraction, it is 5/4. If it is a decimal, it is 1.25
Step-by-step explanation:
15/12 = 5/4 = 1.25
Answer:
1.25
Step-by-step explanation:
Here is a classic riddle: Mr. Smith has an apple orchard. He hires his daughter, Lucy, to pick apples and offers her two payment
options:
Option A: $1.50 per bushel of apples picked.
Option B: 1 cent for picking one bushel, 3 cents for picking two bushels, 9 cents for picking three bushels, and so on, with the
amount of money tripling for each additional bushel picked.
Write a function to model each option.
Answers
Answer:
I am so confused
Step-by-step explanation:
what is the answer 1923 x 1476 =
Answers
Answer:
2,838,348
Step-by-step explanation:
hope this helps monkay
Answer:
2,838,348 love
Step-by-step explanation:
#5-12: Find the y intercept
#1 &2: Find the y intercept or graph the equation
#3: What information did you need to graph an equation in slope intercept form?
#5-12 & 1-2 Optional: Show your work
Answers
Answer:
1. -1
2. 2
9. -5
10. -3
11. 3
12. -2
I would need a clearer photo of the others to actually be able to tell
2. (0,2)
5. (0,2)
6. (0,-8)
7. (0,-5)
8. (0,1)
9. (0,-5)
10. (0,-3)
11. (0,3)
12.(0,-2)
3. To be able to graph in slope intercept form you need the slope and the y intercept because slope intercept formula is y=Mx+b. The m is the slope and the b is the y intercept.
hello please help me
Answers
Answer:
Question 1: square root of 109
Question 2: 2, 1, 1
Question 3: True
Step-by-step explanation:
The square root of 109 is about 10.4 which is greater than 5 and 9.
In the equation a^2 + b^2 = c^2, a and b represent the legs of a triangle and c represents the hypotenuse.
The Pythagorean Theorem states that For all right triangles the square of the hypotenuse is equal to the square of both sides. (a^2 + b^2 = c^2)
enjoy
Justify each step used to simplify the expression. 1. 3x+ 2y− 2x+ 2 = 3x− 2x+ 2y+ 2
Answers
Step-by-step explanation:
We have to simplify the given expression:
1. 3x+2y-2x+23x+2y−2x+2
Combining the like terms,we get the second step as
2. (3x-2x)+(2y)+(2)(3x−2x)+(2y)+(2)
Now, taking 'x' common from the first two terms, we get third step as:
3. (3-2)x+2y+2(3−2)x+2y+2
Now, simplifying the expressions among the like terms, we get fourth step as:
4. x+2y+2x+2y+2
Which relation is a function?
{(8, 1), (4, 1), (0, 1), (–15, 1)}
{(0, 1), (0, 2), (1, 2), (1, 3)}
{(–2, –12), (–2, 0), (–2, 4), (–2, 11)}
{(–4, –6), (–3, –2), (1, –2), (1, 0)}
Answers
Answer:
To check if a relation is a function, given a mapping diagram of the relation, use the following criterion: If each input has only one line connected to it, then the outputs are a function of the inputs. Example: In the following mapping diagram, y is a function of x, but x is not a function of y: Line Test.
Step-by-step explanation:
Simplify the expressions.1 a. –2 t + 5 t – 2 – t
1 b. –5 z + 4 – 4 z2 a. 8 v + 3 – 10 v
2 b. –6 – 6 k – 3 – 7 k
3 a. –6 – 3 w + 4 + 10 w
3 b. 9 s + s
4 a. 6 + 8 b – 1 – 8 b
4 b. 1p + 6 + 5 – 4 p
5 a. 4 x – 3 x + 9 – 6 x5
b. 9 v + 6 v – 2 – 10 v6
a. n + 2 – (–4) n6
b. 6 n – 3 n7
a. –4 x – 4 x + 4 – 9 x7
b. –9 b + (–6) b
Answers
Answer:
1 a.) 2t – 2
1 b.) –9z + 4
2 a.) –2v + 3
2 b.) –13k – 9
3 a.) 7w − 2
3 b.) 10s
4 a.) 5
4 b.) –3p + 11
5 a.) –29x + 9
b.) 15v – 60x – 2
a.) 25n + 2
b.) –15n
a.) –71x + 4
b.) –15b
Step-by-step explanation:
NOTE: I am kind of confused about the way this question is formatted, so I tried to answer everything I could decipher.1 a.) –2t + 5t – 2 – t → 2t – 2
1 b.) –5z + 4 – 4z → –9z + 4
2 a.) 8v + 3 – 10v → –2v + 3
2 b.) –6 – 6k – 3 – 7k → –13k – 9
3 a.) –6 – 3w + 4 + 10w → 7w − 2
3 b.) 9s + s → 10s
4 a.) 6 + 8b – 1 – 8b → 5
4 b.) 1p + 6 + 5 – 4p → –3p + 11
5 a.) 4x – 3x + 9 – 6x 5 → –29x + 9
b.) 9v + 6v – 2 – 10x 6 → 15v – 60x – 2
a.) n + 2 – (–4)n 6 → 25n + 2
b.) 6n – 3n 7 → –15n
a.) –4x – 4x + 4 – 9x 7 → –71x + 4
b.) –9b + (–6)b → –15b
What is the value of x? WILL MARK BRAINLIEST
Answers
24^2 + 7^2 = x^2
576 + 49 = x^2
x^2 = 625
√x^2 = √625
x = 25
Can someone help me?
Answers
Step-by-step explanation:
1. 1/13 2. 1/26
A wooden bench was originally priced at $50 but went on sale for 20% off. If Presley bought the wooden bench and paid a 5% sales tax, how much did he pay in total?
Answers
Answer:
$42.00
Step-by-step explanation:
20% OF 50 = 40
Before Tax Price: $40.00
Sale Tax: 5.00% or $2.00
After Tax Price: $42.00
Answer:
$42
Step-by-step explanation:
To get the new bench price, you multiply 50 × 0.2, which gets you 10, then you subtract 50-10, which is 40, and $40 is the price of the bench on sale. (You could also do 50 × 0.8 to avoid a step and still get the same answer).
You then take 40 and multiply is by 0.05 to get the tax, which would be $2. From here, you add 40+2 to get $42, the amount of money Presley paid for the bench.
Tamir is saving up his money to buy a television that costs $455.65. Right now he has $125.50, and can save $34.00 each week. How many weeks will it take for Tamir to have enough money to buy the television?
Answers
Answer:
10 weeks
Step-by-step explanation:
Answer:
11 weeks
Step-by-step explanation:
34 x 11 = 374, 374 + 125.50 = 499.5
please help will mark brainliest. don't answer for points not unless flagged
Answers
Answer:
B.
Step-by-step explanation:
First, (3/2) is greater than 1, which therefore eliminates A and D.
Second, you must determine if the triangle gets larger or smaller. Lets suppose that X = 2 and Y = 3. If we were to multiply both of these values by (3/2), our points would change to X = 3 and Y = 4.5
Since there was an increase, this means that the triangle was larger.
This leaves B as the answer.
Remember: Any scale value greater than 1 is an enlargement, as proven by the hypothetical.
Answer:
The answer is b owo
Plz Help me with this
x^2+18x+c
Answers
Just simplify :)
Answer:
81
Step-by-step explanation:
Please answer. Geometry question. Please no fake answers
Answers
Answer:
[tex]Solution,\\<ACB = <CAF = 90^o [BC ~is~ parallel~ to~ CF~ and ~alternate~ angles]\\In~triangle~ABC,\\<ACB +<ABC+<BAC = 180^o [Sum~of~angles~of~triangle~is~180^o]\\or, 90^o + 28^o +<BAC = 180^o\\or, <BAC = 62^o \\Now,\\<BAC+<AED = <BDE [Sum~of~interior~angles~triangle~is~equal~to~the~exterior~angle]\\or, 62^o+3x = 4x+x\\or, 62^o = 5x-3x\\or, 2x = 62^o\\or, x = 31^o[/tex]
NEED HELP ASAP
The sales tax in Whittle City is 7%. How much tax is charged on a purchase of $53?
SHOW WORK--- SHOW WORK
Answers
answer= x=20
Step-by-step explanation:
We have, 35% × x = 7
or,
35
100
× x = 7
Multiplying both sides by 100 and dividing both sides by 35,
we have x = 7 ×
100
35
x = 20
If you are using a calculator, simply enter 7×100÷35, which will give you the answer.
please help me with this and explain how you got your answer thank you!!
Answers
Answer:
jwjsbsbhwhwhhw
Step-by-step explanation:
cehehehehrghegeheheheh
Answer:
There is no question, but thanks for the free points. :)
Step-by-step explanation:
The temperature for the day starts at 37 degrees and rises to at least 60 degrees.
Which of the following inequalities could be used to find all the possible values of t, the amount the temperature could rise?
Answers
You could do 60-37 then that would give you 23. If that's what your looking for
Use substitution to solve the system of equations. How many solutions are there?
1/2x − 1/3y = 5
x = 2/3y + 10
A. There are no solutions.
B. There is one solution.
C. There are infinitely many solutions.
D. It is not possible to determine the number of solutions.
Answers
Answer:
a
Step-by-step explanation:
Anita is making Fruit Baskets to sell in her store. She wants each basket to contain the same number of each type of fruit. What is the greatest number of baskets Anita can make?
A.) 4
B.) 8
C.) 16
D.) 72
Answers
help plsssssssssshgruffgfieubf3rg;3
Answers
A, C, and D, are the correct ones I believe.
HELP HELP PLEASEEEE!!!!!!!!!!!!!!!!
Answers
Answer:
1,300 is the final answer
Step-by-step explanation:
Need help with a math problem
Answers
Answer:
No
Step-by-step explanation:
Here's what's going on: some person buying their furniture sees this sofa and it's $1200. That person sees theres a 1/3 off sale! They're happy and buy their sofa with a 20% off discount they got.
Now we have to find out if they should use the 20% off discount before or after adding the 1/3 off sale.
The answer is, they're both the same.
Say they add the 1/3 off sale discount and then use their 20% off discount. Find the 1/3 off sale: 1200 divided by 3 (because fractions are division problems) = 400. 20% of 400: 400 x 0.2 = 80. It's not just 80, because it's not an "only pay 20%" discount. 400 - 80 = 320. They'd pay $320 with this method.
This shows that using the 20% discount after the 1/3 off sale the customer spends $320.
Now let's calculate what happens if they use the discount after the 1/3 off sale. 20% of 1200: 1200 x 0.2 = 240. 1200 - 240 = 960. Now adding the 1/3 off sale: 960 divided by 3 = 320. They'd also pay $320 with this method.
If it's a short answer, you could just write something like, "No, both methods end up with the sales associate paying $320."
Hope this helps!