Answer:
The probability that the selected student is not indifferent to the school start time is 0.8333.
Step-by-step explanation:
Define the events s follows:
X = students support delaying the start of school
Y = students do not support delaying the start of school
Z = students are indifferent to the school start time.
The events X, Y and Z are mutually exclusive events.
That is they cannot occur together.
Compute the probability that the selected student is not indifferent to the school start time as follows:
P (Z') = P (X or Y)
= P (X) + P (Y)
[tex]=\frac{47}{120}+\frac{53}{120}\\\\=\frac{47+53}{120}\\\\=0.8333[/tex]
Thus, the probability that the selected student is not indifferent to the school start time is 0.8333.
What answer gives the solution(s) to the quadratic equation 2x2 + 4x + 5 = 0
I been stuck on this please help me ;-;
Tax rates are: no tax on the first £11000 of earnings earnings in excess of £11000 and up to £43000 taxed at a rate of 20% earnings in excess of £43000 and up to £150000 taxed at a rate of 40% Carys earned £45600 before tax how much tax did she pay in total?
Answer:
She paid tax of £18240
Step-by-step explanation:
We are told that Carys earned £45600 before tax.
Now, from the question, the tax rate that applies is 40%. This is because she earned £45600 and we are told that earnings in excess of £43000 and up to £150000 taxed at a rate of 40%.
Thus;
Tax payable = 40% × 45600
Tax payable = £18240
Hannah has invested £400 in a bank account.
She creates a formula to show her the money she has in her account (M) and a given
amount of years (n). -
M = 400 x (1.021)^n
Looking at her formula, what is the interest rate of the bank account?
Answer:
4000
Step-by-step explanation:
4.3x10
Simplify
8.6 x 10
Jason walks 1 1/4miles to school in 3/4 of an hour. What was Jason's speed?
Answer:
3/5
Step-by-step explanation:
because i said so ️
Will give brainiest to the person who answers
Answer
1) No 2) Yes
Step-by-step explanation:
the middle number has to be bigger than the side numbers
Answer:
Both questions Answers- 1-no 2-yes
what is the anwser to x + 2x + 5 = x + 19
Answer:
X=7
Step-by-step explanation:
CAN SOMEONE HELP ME PLZ!!!
Answer:
The answer is 4! I hope you do Great!
Step-by-step explanation:
what is thirty four multiplied by negative forty percent
Answer:
-13.6
Step-by-step explanation:
Answer:
-1,360
Step-by-step explanation:
34 x -40
Key:
Positive x Negative = Negative
Negative x Negative = Positive
Kerry is collecting money for school. Her goal is to get $200. She has collected $15 each from 12 people so far. How much more money does she need to reach her goal? F.$180 G. $160 H. 20. I. $15
Answer:
F
Step-by-step explanation:
Answer:
H. 20
Step-by-step explanation:
PLEASE HELP AS SOON AS POSSIBLE
Answer:
ill help just give me a second ill post it in the commits. ok
Step-by-step explanation:
The length of a rectangle is twice its width. The perimeter is 60 ft Find its area.
a) A=200 ft²
b) A= 10 ft²
c) A= 100 ft ²
Answer:
A=200 ft²
Step-by-step explanation:
let the Length be L and the Width be W
We know that Perimeter = Length + Length + Width + Width
or,
Perimeter = 2(L + W)
given that Perimeter = 60 ft,
60 = 2(L+W) (divide both sides by 2)
60/2 = (L+W)
L + W = 30 ---------------------eq 1
we are further given that the length is twice the width, or,
L = 2W ---------------------- eq 2
substituting eq2 into eq 1,
L + W = 30
(2W) + W = 30
3W = 30
W = 10 (substitute this into eq 2)
L = 2W
L = 2(10)
L = 20
Area = Length x Width
= 20 x 10
= 200 ft²
which step is wrong pls help
Answer:
the second step and third step
Step-by-step explanation:
in the second step, you are supposed to move 5x to the left side
in the process of this, 5x should turn negative, and you should be subtracting it from 7x, not adding it.
so the +5x should be -5x
in the third step you should divide, but when you divide 6 by 12, you should get 0.5, not 2.
Find the solution(s) of the following equation.
b^2 = 49b
2
=49b, squared, equals, 49
Choose all answers that apply:
Choose all answers that apply:
(Choice A)
A
b = 7b=7b, equals, 7
(Choice B)
B
b = -7b=−7b, equals, minus, 7
(Choice C)
C
b = \sqrt{49}b=
49
b, equals, square root of, 49, end square root
(Choice D)
D
b = -\sqrt{49}b=−
49
b, equals, minus, square root of, 49, end square root
(Choice E)
E
None of the above
Answer:
All of the above
Step-by-step explanation:
i just did it (also sorry it took a year for your question to be answered :(
Observe as frações e transforme as em números racionais na forma decimal a)sete sobre nove 7/9 b)13/99 c)3/9 d)211/99
Answer:
a) 1.1666666667
b) 0.1313131313
c) 0.3333333333
d) = 2.1313131313
Step-by-step explanation:
Observe as frações e transforme as em números racionais na forma decimal a)sete sobre nove 7/9 = 7÷ 9
1.1666666667
b)13/99 = 13÷ 99 = 0.1313131313
c)3/9 = 0.3333333333
d)211/99 = 2.1313131313
The lengths of the sides of a quadrilateral are 4 consecutive even integers. The perimeter of the quadrilateral is 36 inches. What is the length of the longest side?
Answer:
Length of longest side is 10.5 inches
Step-by-step explanation:
Let the shortest side of the quadrilateral be x inches
The length of the consecutive sides will be;
x , x + 1 , x + 2 and x + 3 inches
By adding all
together, we get the perimeter of the quadrilateral
so;
x + x + 1 + x + 2 + x + 3 = 36
4x + 6 = 36
4x = 36-6
4x = 30
x = 30/4
x = 7.5 inches
The longest side is x + 3 = 7.5 + 3 = 10.5 inches
Write a subtraction expression for the number line model.
-10
-8
-6
-4
-2
0
2
4
6
8
10
x y graph
Which subtraction expression does the number line model show?
Answer:
+2 that's what I think it is
hi can someone help me please :(
Answer:
100
Step-by-step explanation:
0.30 x 100 = 30
Answer:
100
Step-by-step explanation:
10% of 100= 10
20% of 100 = 20
so
30% of 100=30
or you can do this method:
Turn the percentage into a decimal30%= 0.3Then take the 30 divided by your decimal 0.3030/0.30=100So the answer is 100If 13 of a gallon of paint covers 18 of a wall, how much paint is needed to cover the entire wall?
Answer:
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Jadiel wants to take his buddies out for pizza. Each medium
pepperoni pizza costs $10, and he has only $23 in his pocket. How
much money would he have to borrow to order three medium
pepperoni pizzas?
Answer:
7$
Step-by-step explanation:
1) 3x10=30 so 30 is how much money he needs
2)30-23=7 so 7 is how much he needs to borrow
Answer:
$7
Step-by-step explanation:
The reason is because three medium pepperoni pizzas cost $30, because you have to multiply $10x3 since each pizza cost $10. He already has $23 dollars in his pocket. You have to subtract his total value which is $23 from $30 to get $7.
Darren borrowed $25 dollars from his sister to buy a new video game he made $15 mowing the lawn he gave the money to his sister what is the current balance
Answer:
10 dollars
Step-by-step explanation:
15 - 25 = -10 but debt is recorded as positive in accounting, so $10 (might be overthinking xd)
B. Alex puts 1/4 1of his money in savings and uses 1/( 2) of the remaining money to pay back her sister. If she has GH¢15 left, how much did she have at first?
Answer:
GH¢60
Step-by-step explanation:
Alex puts 1/4 1of his money in savings and uses 1/( 2) of the remaining money to pay back her sister. If she has GH¢15 left, how much did she have at first?
Let the Total amount of Alex money = 1
We are told that she has GH¢15 left,
Hence, we find the fraction of the money she has left
1 - (1/4 + 1/2)
1 - 3/4
= 1/4
The fraction of the amount she left = 1/4
Let x represent the total amount of money that Alex had
1/4 × x = GH¢15
x / 4 = GH¢15
Cross Multiply
x = 4 × GH¢15
x = GH¢60
Therefore, Alex had GH¢60 at first
If a square's area is 110. What is the length of one side?
(20 Points)
Answer:
27.5
Step-by-step explanation:
Well for me i would divide 110 by 4 because there are 4 sides and that will be your answer
Help Idk what I did wrong show your work please
Answer: x = 10
Step-by-step explanation:
first Add 20 to both sides.
4x = x + 10 + 20
Then Simplify x + 10 + 20 to x + 30
4x = x + 30
Then u subtract x from both sides
4x - x = 30
Simplify 4x - x to 3x
3x = 30
Then u divide both sides by three
x = 30/3
Then u last simplify 30/3 to 10
x = 10
Answer:
x = 10
Step-by-step explanation:
first Add 20 to both sides.
4x = x + 10 + 20
Then Simplify x + 10 + 20 to x + 30
4x = x + 30
Then you subtract x from both sides
4x - x = 30
Simplify 4x - x to 3x
3x = 30
Then you divide both sides by three
x = 30/3
Then you last simplify 30/3 to 10
x = 10
heeeelllllllllllllllllllllllllppppppppppppppppppppp
just replace all the ms in the equation with -5
(-5^2) -8 x -5 - 6
25 + 40 - 6 = 59
John and Nadim do the math homework together. When they find 9 - (-8), they get different answers. John claims the difference is 17. Nadim claims the difference is -1. Who is correct?
Answer:
John is correct
Step-by-step explanation:
The rule in mathematics states that
- × + = -
+ × + = +
- × - = +
Hence, for the homework,
9 - (- 8) = x
9 + 8 = 17
Therefore, John is correct and Nadim is incorrect.
scoob oh no you need help
Answer:
yes raggy
Step-by-step explanation:
i need help raggy
Answer:
how are you raggy?
Step-by-step explanation:
Dorian and Jack decided to go bowling. They each need to rent shoes and 1 lane, and Jack is a member.If Jack pays for both of them with $20, what change should he receive?
Answer:
$6.60
Step-by-step explanation:
This is an incomplete question. I have however searched for the concluding parts and same attached as seen below.
First, we need to calculate the costs for both shoes rented by Dorian and Jack.
Member's cost for each shoe rentage is $2.95 , and since both rents the shoe at same cost, therefore,
Cost = $2.95 + $2.95 + $7.50
Cost = $13.40
To get the balance that Jack should receive, we will simply deduct the cost from the initial $20 member cost, hence;
Balance = $20 - $13.40
Balance = $6.60.
Therefore, the change that should be received by Jack is $6.60
3(-4+x)=-42 two step problem
Answer: x=-10
Step-by-step explanation:
3(-4+x)=-42
Distribute
-12+3x=-42
Bring -12 to the other side (switches signs)
3x=-30
Divide 3 from both sides
x=-10
