Answer: See below
Step-by-step explanation:
Event 1:
When the aces and twos (8 cards in total) are removed:
52 - 8 = 44 total cards
Since 2 cards (an ace and a two) were removed there are a total of 11 hearts
Probability: 11/44
P = 1/4 or 25%
Event 2:
Since 4 cards (2 aces and 2 two's) were removed there are a total of 22 blacks
Probability: 22/44
P = 1/2 or 50%
Event 3:
There are 12 face cards in the deck
Probability: 12/44
P = 3/11 or 27.27%
Event 4:
Probability of a heart + Probability of not a heart = 1 --> 100%
P(not a heart) = 1 - P(heart)
P = 1 - 1/4
P = 3/4 or 75%
A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation.
x + y = 24
3x + 5y = 100
What does the solution of this system indicate about the questions on the test?
The test contains 4 three-point questions and 20 five-point questions.
The test contains 10 three-point questions and 14 five-point questions.
The test contains 14 three-point questions and 10 five-point questions.
The test contains 20 three-point questions and 8 five-point questions.
Answer:
10 three-point questions and 14 five-point questions.
Step-by-step explanation:
x+y = 24
3x+5y = 100
We can solve this system of equations using elimination. In order to do this, let's first multiply the first equation by 3...
3x+3y=72
3x+5y=100
Now, subtract the first equation from the second equation...
2y=28
Divide both sides by 2
y=14
Plug this back into any of the equations to solve for x...
x+14=24
x=10
There were 10 three-point questions and 14 five-point questions
Nancy mistakenly measured the temperature of a heated liquid to be 48°C. The actual
temperature of the headed liquid was 50°C. What was the percent error?
Answer:
4.17% (nearest hundredth)
Step-by-step explanation:
percent change = [ (difference between initial value and final value) ÷ initial value] x 100
⇒ percent change = [ (50 - 48) ÷ 48 ] x 100 = 4.17% (nearest hundredth)
Which set of ordered pairs is made up of points on the graph of the function below? y=-4x+3 A.
(-1,7), (3,0), (1,-1), (-5,2)
B.
(7,-1), (3,0), (-1,1), (-5,2)
C.
(7,-1), (3,0), (1,-1), (2,-5)
D.
(-1,7), (0,3), (1,-1), (2,-5)
Answer:
D
Step-by-step explanation:
This y intercept is 3 because of mx+b formula. This automatically eliminates a b and c. The answer is D
Mariah fills 7 pillows with feathers. Each pillow weighs 3/4 pounds. What is the total weight of the 7 pillows?
Determine the slope and the y-intercept of the following equation.
2x + 7y = 8
Answer:
the slope = -2/7
the y-intercept = 8/7
Step-by-step explanation:
Rewrite the equation to a slope-intercept form:
7y = 8 - 2x
7y = -2x + 8
[tex]y=-\frac{2}{7}x+\frac{8}{7}[/tex]
so the slope = -2/7
the y-intercept = 8/7
Find a description this equation represents. Of the numbers 1, 2, 3, 4, and 5, which are solutions to the equation? 3x-10=2
Answer:
3x - 10 = 2
3x = 2 + 10
3x = 12
÷3 = ÷3
x = 4
Answer:
The answer is 4
Step-by-step explanation:
3*4=12
12-10=2
I can’t figure this out
At a horseback riding competition in the Olympics, each rider receives a score from 2 judges’
scores. Maddy was one of the riders in the competition. If one judge awarded Maddy a score
of 87, and Maddy’s final score was 84.5, what score did the other judge award Maddy?
Answer: 82
Step-by-step explanation:
Let the score that the other judge gave Maddy be M
We get the equation
(87+M)/2 = 84.5
87+M = 169
M = 82
What’s the length of this missing leg?
Answer:
b = 4.5 mm
Step-by-step explanation:
using Pythagoras theorem:
a² + b² = c²
4² + b² = 6²
b² = 6² - 4²
b² = 36 - 16
b² = 20
b = √20
b = 4.5
Pythagoras theorem:
a² + b² = c²
4² + b² = 6²
b² = 6² - 4²
b² = 36 - 16
b² = 20
b = [tex] \sqrt{20}[/tex]
b = 4.5
Rahmi bought 1 pair of jeans and 2 T-shirts. How much did rahmi spend? Write equations to solve. Use a letter to represent the unknown quantity
Answer:
1x + 2y = (The answer/money spent)
Step-by-step explanation:
Explain how y=|x+3|-6 is translated from y=|x|
Answer:
go down 6 units
go left 3 units
Step-by-step explanation:
+3 inside the absolute value bar means go left
-6 mean moving down
Some people attended a small concert last Saturday. 70 of those people sat in the balcony
of the theater. This was 35% of the people who attended. How many people were at the
concert?
Answer:
200
Step-by-step explanation:
If 'a' is the total attendance, the given relation is ...
70 = 0.35a . . . . . . 70 is 35% of attendance
Dividing by the coefficient of 'a', we find the attendance was ...
70/0.35 = a = 200
200 people were at the concert.
please help i dont understand these and i need help
you have to find missing numbers with geometric mean
Answer:
it is 200
Step-by-step explanation:
2 take 2 add 20 add a sec 0
What is an equation of the line that passes through the points (-2, 7) and (1, -8)
1. using point-slope formula:
(y2-y1)/(x2-x1)=
(-8-7)/(1-(-2))=
-15/3=
-5
The slope is -5
The equations will be:
y-7=-5(x+2)=
y=-5x-3I need help please can’t find it
Answer:
Step-by-step explanation:
log(7)6+log(7)2^3
log(7)6+log(7)8
log(7)(8*6)
log(7)48 = > D is the correct answer.
PLEASE HELP! I have a picture of the question below :)
3. ∠1+∠2=180° and ∠2+∠3=180°
4. they are supplementary
5. ∠1+∠2=180°=∠2+∠3
6. ∠1+∠2=180°=∠2+∠3
∠2 are same in both side so ∠1=180°-∠2 =∠3=180°-∠2
7.
Draw a model that shows 3 items being divided equally for 4 people.
How much will each person have?
FRACTION MODEL PLEASE PUT PICTURE TOO
Answer: Each person will have 3/4 of all the items
Step-by-step explanation: Each person will get 1/4 of each item. Because there are three items in all, each person will get 3/4 of all the items.
Answer:
Every person will get 3/4 of an item
Step-by-step explanation:
3 items split between 4 people is simply 3/4 item per person. Draw a shape like a circle, square, or rectangle 3 times and split each into 4 equal pieces. There should now be 12 total parts which 3 will be given to each person. Write a unique names or labels (like a letter or number) on different pieces for 4 different letters or symbols.
Not the best artist but model should look something like the image.
What would be the area of a triangle with a base of 5 cm and a height of 8 cm?
Answer:
20
Step-by-step explanation:
the area of a triangle is 1/2 base times hight (a=1/2bh)
Answer:
20 cm squared
Step-by-step explanation:
The formula is Area equals (base times height) divided by 2, so (5*8)/2=20
screenshot, don't really need aanswer, just to test if any of you guys can do it
Answer:
it's a hard one
Step-by-step explanation:
I don't know either
Identify the correct solution to the problem 5 x 3/4
Answer:
3.75
Step-by-step explanation:
5 × 3/4
= 15/4
= 3.75
Hope it helps ⚜
Convert from exponential form to logarithmic form:
Question 1 options:
log27(3)=3
log3(3)=27
log3(27)=327
log3(27)=3
Question 2 (1 point)
Translate from Logarithmic Form to exponential form: log2(8)=3
Question 2 options:
23=8
32=8
82=3
28=3
Question 3 (1 point)
Solve for the missing info: log4 __ =3
Answer:
1)[tex]3^3=27[/tex]
2)[tex]2^3=8[/tex]
3)64
Step-by-step explanation:
PLS HELP ASAP
Erin recycles milk bottles, soda cans, and newspapers. If the following items are in the trash bin, what percent of the items can be recycled?
3 milk bottles, 1 banana peel, 6 newspapers, 3 soda cans, 7 apple cores
A. 60%
B. 12%
C. 45%
D. 100%
The percentage of items that can be recycled is 12%
Review the attachments. Review the process of solving an equation and fill in the blanks.
Answer:
1) Combine like terms
2) [tex]\sqrt[3]{x} =3[/tex]
3) cube both sides of the equation
4) [tex]4\sqrt[3]{27} +8\sqrt[3]{27}=36[/tex]
5) 4(3) + 8(3) = 36
Step-by-step explanation:
1) Combine like terms
2) [tex]\sqrt[3]{x} =3[/tex]
3) cube both sides of the equation
4) [tex]4\sqrt[3]{27} +8\sqrt[3]{27}=36[/tex]
5) 4(3) + 8(3) = 36
how personality can affect communication?
Answer:
Personality impacts how we prefer to communicate with people, as well as how we ourselves respond to information. The more we understand our own communication styles and those of the people we work with, the more effective we can be as leaders, teams, and colleagues
Step-by-step explanation:
which of the following is a true statement?
Answer:
3/8 less than 1/2 is correct
Step-by-step explanation:
I NEED HELP I DONT UNDERSTAND
Answer:
i have no idea, Im very much sorry
Step-by-step explanation:
Convert. 5 mi into yards
Answer:
8800 yards
Step-by-step explanation:
1 mile contains 1760 yards so 1760·8=8800
or..
1760x
Solve for b in the equation: 2b + 3c = A
Answer:
b = (A - 3C)/2
Step-by-step explanation:
2b = A - 3C
b = (A - 3C)/2
expression: the product of 4 and n.
A. 4/n
B. 4 + n
C. 4 – n
D. 4n
Answer:
D
product of 4 and n is the same as 4× n
and it is equal to 4n
[tex]\sqrt[3]{8.01}[/tex] Approximate