Complete question is;
An ordinary deck of playing cards has 52 cards. There are four suits
-spades, hearts, diamonds, and clubs
-with 13 cards in each suit.
Spades and clubs are black; hearts and diamonds are red. One of these cards is selected at random. Let A denote the event that a red card is chosen.
Find the probability that a red card is chosen, and express your answer in probability notation.
Answer:
P(A) = 0.5
Step-by-step explanation:
We are told that the ordinary deck of playing cards has 52 cards.
Now, there are four suits
-spades, hearts, diamonds, and clubs
-with 13 cards in each suit.
Now, in a standard set of playing cards, there are 13 black spades and 13 black clubs as well as 13 red hearts and 13 red diamonds
Thus;
Number of red cards = 13 + 13
Thus;
Number of red cards = 26
Since, A denotes the event that red card is chosen.
This means that probability of choosing a red card is;
P(A) = number of red cards/total number in a deck of cards
P(A) = 26/52
P(A) = 0.5
help me plzzzzzzzzzzzzzzz
Answer:
7) √2 , π , 4.5. √2 ≈ 1.41 < π ≈ 3.14 < 4.5 = 4.5.
9) √3 , π , 7. √3 ≈ 1.73 < π ≈ 3.14 < 7 = 7.
10) -4 , 1.5, √8. -4 = -4 < 1.5 = 1.5 < √8 ≈ 2.83.
11) -5.5 , 3/2, √6. -5.5 = -5.5 < 3/2 = 1.5 < √6 ≈ 2.45.
12) 5/2 , 2.6 , 1 + √3 , √8. 5/2 = 2.5 < 2.6 = 2.6 < 1 + √3 ≈ 2.73 < √8 ≈ 2.83
12) People in order: Bryon, Justin, Rosa, Allie.
What is the solution to -4-2x + 6 = -24?
x = 0 or x = -6
O x = 0 or x = 6
O no solution
Answer:
x=13
Step-by-step explanation:
NEED HELP!!
Drag the tiles to the boxes to form correct pairs. Multiply the pairs of numbers and match them to their products. (-7)(-1.2) 5 (-2)—2) -5 (2.5)(-2) 8.4 (7)(-1.2) -8.4
The correct matches are;
1) (-7) (-1.2) = 8.4
2) 5 = (-2 1/2) (-2)
3) -5 = (2.5) (-2)
4) (7) (-1.2) = - 8.4
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
The expressions are,
a) (-7) (-1.2)
b) 5
c) (-2 1/2) (-2)
d) -5
e) (2.5) (-2)
f) 8.4
g) (7) (-1.2)
h) -8.4
Now, Solve the expressions in simplest form;
a) (-7) (-1.2) = 8.4
b) 5 = 5
c) (-2 1/2) (-2) = -5/2 x - 2 = 5
d) -5 = -5
e) (2.5) (-2) = -5
f) 8.4 = 8.4
g) (7) (-1.2) = - 8.4
h) -8.4 = -8.4
Thus, The correct matches are;
1) (-7) (-1.2) = 8.4
2) 5 = (-2 1/2) (-2)
3) -5 = (2.5) (-2)
4) (7) (-1.2) = - 8.4
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Alice’s dog eats 9/4 pounds of dog food each day. How much dog food will the dog eat in 30 days?
135 pounds
135/2 pounds
135/4 pounds
135/9 pounds
Answer:
135/2
Step-by-step explanation:
In 1 day the dog eats 9/4 lbs
In 30 days the dog eats (9/4) * 30 lbs
= (9 * 30) / 4
= 135/2
PLEASE HELP Marcos needs to save $2,000 for college next year. If he has 12 months before he needs the money, how much will he need to save every month? Round to the nearest dollar.
Answer:
167
Step-by-step explanation:
2,000/12=166.66=167
Answer:
2000 divided by 12= 166.67
Step-by-step explanation:
he would need $166.67 every month so they can reach their goal.
Is 0.135 a rational number
Answer:
0.135 is an irrational number because the decimal is not repeating
Step-by-step explanation:
One end of a spring is attached to a ceiling. When an object of mass m kilogram is attached to the other end of the spring, the spring stretches to a length of / centimeters as shown in the equation l = 24 +3.4m . What is m when l is 73?
please helpppp!
The value of the mass when I is 73 will be m = 14.4.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that when an object of mass m kilogram is attached to the other end of the spring, the spring stretches to a length of / centimeters as shown in the equation l = 24 +3.4m.
The mass will be calculated as below,
73 = 24 + 3.4m
49 = 3.4m
Divide by 3.4 into both sides
14.4 = m
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PLS HELP! I WILL REWARD AND GOVE PUT BRAINLIEST!!
The choices for, “Which operation must be performed to isolate the variable?” Are
A. Add 7.6
B. Add 18.2
C. Subtract 7.6
D. Multiply 7.6
The choices for, “the solution to the equation is” are
A. X=7.6
B. X=10.6
C. X=18.2
D. X=25.8
Answer:
Add 7.6
D. x=25.8
Step-by-step explanation:
Answer:
Add 7.6
D. x=25.8
Step-by-step explanation:
please helpppppppppp me please
Answer:
WITH WHATttttt
Step-by-step explanation:
Ronald brother told Mj to get the app BRAINLY It helps you with anything But Mj do not have nothing to use Mj ask his mom if she would by him a phone she said yes the phone cost $230 dollars but it didn't come with a charger so they bought a charger it cost $15 dollars how much does the charger cost
Answer:
If you mean in total if all of it then 245
Am i right? And why?
Answer:
Yes I think your right but I can't back up my response. I mean it looks right to me.
Step-by-step explanation:
Srry. HOPE THIS HELPS!! :)
What is the end behavior of the graph?
Jessica wants to order some sunglasses from Amazon. Each pair of sunglasses cost $9.00 and shipping for the entire order is $10. How many pairs of sunglasses can she get if she spend no more than $100
Answer:
10
Step-by-step explanation:
9x10=90 then add the shipping and get 100
What is...
5(11+6)
and
7(3-19)
Answer:
#1. 85
#2. -112
Step-by-step explanation:
#1.
multiply 5 by whats inside the parenthesis
55 + 30
85
#2.
multiply 7 by whats inside the parenthesis
21 - 133
-112
Hope this helps!
Have a nice day!
If you find my answer helpful
Pls consider marking my answer as Brainliest! It would mean a lot!
Answer:
5(11+6)= 85
7(3-19= -112
Step-by-step explanation:
5(11+6)
55+30=85
7(3-19)
21-133= -112
Oth John's parents and Marco's parents decide to start a college fund for their children. The expressions below represent the value of each college fund after w weeks. John's College Fund: 43 w + 1814 12 Marco's College Fund: 25 w + 1744
Answer:
Step-by-step explanation:
The question is not clear on what to solve for, but we can solve for the number of weeks in which the two funds will have the same amount.
let the total fund funds be y
and the number of weeks be w
For John's fund the expression is
y=45w+1814------1
Marco's College Fund
y=25 w+1744---------2
equating 1 and 2 we have
45w+1814=25w+1744
45w-25w=1744-1814
20w=-70
divide both sides by 20 we have
w=-70/20
w=-3.5
this means that in 3 and half weeks the two funds will have the same amount in them
What is 3 +1 giving BRANIEST
Answer: 4
Step-by-step explanation:
1. Add 3 and 1
3+1 = 4
Your answer is 4
Answer:
I think it is 5 wait no
Step-by-step explanation:
Rich earns $25 every weekend babysitting. He wants to buy a new game system that costs $499. He already has $220 saved. What is the minimum number of weekends he will need to babysit in order to have at least the $499 he needs?
ASAP I only have 10 minutes
Answer:
12 weekends
Step-by-step explanation:
Round up to $500 to make it easier, he needs $500. with $220 Saved he needs $280 more ($500-$220). $280 / $25 per weekend is 11.2 weekends needed. He would need to work 12 weekends to get to his goal
Answer:
i trieddddddddddddd
Kayla was driving from Philadelphia to Florida, trying to remain at a constant speed as much as possible after she reached the highway. She travelled 139.5 miles after an hour and a half and then 395 miles after 5 hours. Which represents Kayla's speed (rate of change)?
Answer:
Step-by-step explanation:
Speed = change in distance/change in time
S= Δd/Δt
let d1 = 139.5miles
d2 = 395miles
t1 = 1.5 hrs
t2 = 5hrs
Δd = d2-d1
Δd = 395-139.5
Δd = 255.5miles
Δt = 5-1.5
Δt = 3.5hrs
Speed = 255.5/3.5
Speed = 73miles/hr
Hence Kayla's speed is 73miles/hour
Help please I will give BRAINLIEST!!!! Which is the function represented by the table?
Answer:
i dont even know i couldnt even tell u that
Step-by-step explanation:
df
Use the slope formula to find the slope between the given two points?
(2, 1) and (8,9)
Answer:
4/3
Step-by-step explanation:
Slope = (y2-y1)/(x2-x1)
(9-1)/(8-2)
4/3
Answer:
[tex]\frac{4}{3}[/tex]
Step-by-step explanation:
(2,1) (8,9)
The formula that you would use is:
[tex]\frac{y_{2}-{y_1} }{x_2-x_1}[/tex]
So, 2 could be [tex]x_1[/tex] and 1 could be [tex]y_2[/tex]
and 8 could be [tex]x_2[/tex] and 9 could be [tex]y_2[/tex]
When we insert these numbers into the equation, we get:
[tex]\frac{9-1}{8-2}[/tex]
When we solve that we get:
[tex]\frac{8}{6}[/tex]
Now we simplify it by dividing both the numerator and denominator by 2, which would give us:
[tex]\frac{4}{3}[/tex]
Identify the independent and dependent variables. Then write a rule in function notation for the situation, letting x represent the independent variable.
A concert ticket costs $60.
Answer:
independent: number of tickets purchased;
dependent: total cost;
rule: f(x) = 60x
Step-by-step explanation:
The independent variable is the input of a function (the variable whose value determines the value of the output, or dependent variable). In this case, the independent variable is the number of tickets purchased.
The dependent variable is the output of a function (the variable whose value depends on the value of the input, or independent variable). In this case, the dependent variable is the total cost of all tickets purchased.
The total cost of all tickets purchased is equal to $60 times the number of tickets x. Therefore, a function rule for the total cost of all tickets purchased is f(x) = 60x.
Suppose y varies directly with x, and y = 6 when x = 18. What is the value of y when x = 9?
A:9
B:27
C:1
D:3
What is the slope of the line that passes through the points (9,4) and( (9,-5) write your answer in simplest form
Answer:
undefinded
Step-by-step explanation:
Which interval contains a local minimum for the
graphed function?
What would your first step look like if you were solving this system using the substitution method? y=x−10 and y=−6x+18?
Answer:
Substitution method can be applied in four steps.
Solve one of the equations for either x = or y = .
Substitute the solution from step 1 into the other equation.
Solve this new equation.
Solve for the second variable. ...
Step 1: Solve one of the equations for either x = or y = .
Step-by-step explanation:
13x-12x+45•12=14-12x-10•5
Answer:
[tex]x=\frac{576}{11}[/tex]
Step-by-step explanation:
13x - 12x + 45 * 12 = 14 - 12x - 10.5
Multiply first
13x - 12x + 540 = 14 - 12x - 50
Combine like terms
x + 540 = 12x - 36
Subtract x from both sides
540 = 11x - 36
Add -36 to both sides
576 = 11x
Divide both sides by 11
[tex]x=\frac{576}{11}[/tex]
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Simplify: -8w^8 - 4w^8
Enter the original expression if it cannot be
simplified.
Answer:
-12w^8
Step-by-step explanation:
Hope it helps!
What is the value of the expression below when w=2w=2?
8w^2 +2w+8
8w
2
+2w+8
PLS HELP
Answer: 33
Step-by-step explanation:
Answer:
Step-by-step explanation:
33
You can get 672 calories from eating 8 apples. How many calories can you get from eating 1 apple?
Step-by-step explanation:
672 divides by 8
=8.375
The two triangles are similar. Find the missing side length.
9.6
60
12
16
Answer: x = 9.6
Step-by-step explanation: 24/x * 20/8 (cross multiply)
20x = 192 (now divide)
x = 9.6
