Answers
Related Questions
Of the 30 students in the sixth period math class, 8 are also in the same fourth period science class. Which can be used to determine the probability that if three students are chosen at random from the math class to do a group project, the first student chosen to be in the group is in the fourth period science class but the other two are not?
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Answer: A is the correct answer
Step-by-step explanation:
Answer:
(8/30)(22/29)(21/28) or A
There are 500 students in a school. Sara asked 100 of the students what their favorite lunch is. Out of the students surveyed 45 said pizza, 15 said burritos, 30 said hamburgers, and 10 said hot dogs. Based upon the results, how many students out of the whole school should want the items listed? (Round to the nearest whole number.) Pizza: 225 Burritos: 75 Hamburgers: 150 Hot Dogs: 50 Pizza: 22500 Burritos: 7500 Hamburgers: 15000 Hot Dogs: 5000 Pizza: 125 Burritos: 125 Hamburgers: 125 Hot Dogs: 125 Pizza: 45 Burritos: 15 Hamburgers: 30 Hot Dogs: 10
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Answer: Pizza: 225 Burritos: 75 Hamburgers: 150 Hot Dogs: 50
Step-by-step explanation:
Since Sara asked 100 of the students for their favorite lunch but there are 500 students in a school, this means that the items listed will have to be multiplied by 5 (500/100) in order to get the number of students in the whole school that'll need the items listed. This will therefore be:
Pizza = 45 × 5 = 225
Burritos = 15 × 5 = 75
Hamburgers = 30 × 5 = 150
Hot dogs = 10 × 5 = 50
The correct option is A:
Pizza: 225 Burritos: 75 Hamburgers: 150 Hot Dogs: 50
For the GJW Clean Up event, Ms. Baran spent $37.95 on 23 packets of hand wipes for
her team of volunteers. What was the price of each packet think unit rate/price)?
Pls I need help on this quick
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answer only if you know and NOT because you want brainliest ( ill report you if you do )
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WHOEVER ANSWERS CORRECTLY GETS BRAINLIEST
Javier and his friends go out to eat. The restaurant they chose automatically adds a 15% gratuity to their food bill since they are a party of 12. The total bill after the automatic 15% gratuity was $213.90. Because they received such good service, the group decided to add an extra $20 to the total bill as an additional tip.
So, instead of leaving a 15% tip, Javier and his friends ended up leaving a tip that was about __% of the food bill.
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Answer:
26% tip
Step-by-step explanation:
213.90 / 1.15 = 186
213.90 + 20 = 233.9
233.9 / 186 = 1.26
26% tip
Help plzzz, even just a explanation on how to do this would be a huge help (30 points bc there’s 3 problems)
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Answer:
1. 8.5 same side as the side on the left (congruent)
2. 65° same as opposite angle (congruent angles)
3. 7.2 E is the midpoint so its the same as that measurement
#6 - 65 degrees
#7 - BE = 7.2
If P and Q are two sets then n( P-Q) means ?
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[tex]\huge{\mathbb{ \tt{ANSWER}}}[/tex]
I shall use the symbol U for union
^ for intersection
~ for complement
----------------------------------------------------------------------------------------------------
The property of set subtraction states that for any sets X and Y, X-Y = X ^ Y~
That is in words, X throw away Y is the same as the intersection of X and the complement of Y
or X and anything NOT in Y
At the SET level, the proof looks like this:
(P-Q) U (Q-P) = « given
(P^Q~) U (Q ^ P~) = « property of set subtraction
(P U Q) ^ (P U P~) ^ (Q~ U Q) ^ (Q~ U P~) = « distributive property
(P u Q) ^ (Q~ U P~) = « Union of any set with it's complement is the universal
set which gets dropped by any intersection of a non-universal set
(P u Q ) ^ (Q ^ P)~ = « De Morgan's Law
(P u Q) - (Q ^ P) = « property of set subtraction
(P u Q) - (P ^ Q) « commutative property
----------------------------------------------------------------------------------------------------At the ELEMENT level, the proof looks like this:
» Proves left side is subset of right side
If x is in (P-Q) U (Q-P) then x is in (P-Q) OR x is in (Q-P)
If x is in P-Q then x is in P but not in Q.
Then X is in P U Q.
Since x is not in Q, x is NOT in P ^ Q
Hence x is in P U Q but NOT in P^Q, which
means it is an element if (P U Q) - (P ^ Q)
Therefore x is an element of the set defined by the right side, which means (P-Q) U (Q-P) is a subset of (P U Q) - (P ^ Q)
« proves right side is subset of the left side
If x is an element of (P U Q) - (P ^ Q) then
x is in (P U Q) but NOT in (P^Q)
Since x is in P U Q, x is in P OR x is in Q.
Since x is NOT in (P^Q) then x is NOT in BOTH P and Q.
Hence x is in either P or Q but not both.
If x is in P, then x is not in Q, so x is in P-Q.
Therefore x is in (P-Q) U (Q-P).if x is in Q, then x is not in P, so x is in Q-P.Therefore x is in (Q-P) U (P-Q).There x is an element of set defined by the left side, which menas (P u Q)-(P ^Q) is a subset of (P-Q) U (Q-P).
#CarryOnLearning
#LetsEnjoyTheSummer
»X x K i m 0 2 x Xanyone know the answers to questions 7, 8 and 9?
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Answer:
7. B 8. J 9.B
Step-by-step explanation:
slove the following
equation without with out transporting I)5y +10=4y-10
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The number of hamburgers, x, and the number of sodas,y, that shaquille can purchase with $12 is represented by the inequality 4x + 2y _<12. Which coordinate pair(s) (x,y) represent a possible number of hamburgers and sodas shaquille can purchase? Select all that apply
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Answer:
there are many corridinate pairs. but the best ones can go from (3,0) to (0,6)
Step-by-step explanation:
any dot on this line should be a coordinate pair to represnt the possible numbers of hamburgers and sodas.
6. Sara Just spent $44 to get her hair styled. She
wants to leave a 15% tip for her hairdresser. How
much should she leave for the tip?
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Answer:
$6.60
Step-by-step explanation:
You'd take the total anf multiply it by your percent amount with the decimal moved two places to the left
44 * .15 = 6.60
What is angle m1, m2 and m3?
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m2 = 80
m3 = 100
:))))))))))
Please help me out! As soon as possible.
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Answer:
Number of hours gardening
Step-by-step explanation:
12g
g = Number of hours gardening
What is the area of kite QRST? If necessary, round to the nearest tenth.
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Answer:
Area of kite = 17 feet²
Step-by-step explanation:
Given:
For big triangle;
Length of base = 5.2 feet
Length of height = 2.5 feet
For small triangle;
Length of base = 1.6 feet
Length of height = 2.5 feet
Find:
Area of kite
Computation:
Area of kite = 2[Area of big tringle] + 2[Area of small triangle]
Area of kite = 2[(1/2)(b)(h)] + 2[(1/2)(B)(H)]
Area of kite = [(5.2)(2.5)] + [(1.6)(2.5)]
Area of kite = 13 + 4
Area of kite = 17 feet²
Which expression can be used to represent the 9 more than the quotient of 14 and 2? (14 + 2) ÷ 9 14 ÷ 2 X 9 (14 X 2) + 9 (14 ÷ 2) + 9
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Answer:
The expression that can be used to represent 9 more than the quotient of 14 and 2 is (14 ÷ 2) +9
Step-by-step explanation:
The statement 9 more than the quotient of 14 and 2 means
9 + the quotient of 14 and 2.
Now, for the quotient of 14 and 2
Recall that,
Dividend ÷ Divisor = Quotient.
Here, Dividend = 14 and the Divisor is 2
Hence, the quotient of 14 and 2 can be represented by 14 ÷ 2
∴ The statement 9 more than the quotient of 14 and 2 becomes
9 + (14 ÷ 2) OR (14 ÷ 2) +9
Hence, the expression that can be used to represent 9 more than the quotient of 14 and 2 is (14 ÷ 2) +9
A table with an area of 2688 inches and a length of 64''. Find the perimeter of the table
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Answer:
212
Step-by-step explanation:
First you would need to divide 2688 and 64 you would get 42. Then, now you need to add 64+64+42+42. Which in the end equals 212.
4. If a set of data is normally distributed with a mean of 40 and standard
deviation of nine. Determine the percent of the data that is between 36 and 41.
9.18%
18.81%
21.38%
54.38%
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Answer:
18.81
Step-by-step explanation:
A football team had a total of 33 players. One third of the players were seniors. How many players were underclassmen?
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Answer:
22
Step-by-step explanation:
1/3 of 33=11
11=number of seniors
2/3 of 33=22
22+11=33
22=number of underclassmen
plz can i get brainliest:)
select all expressions that are equivalent to 3x - 2 (x - ) - 1
A.) -9 + x
B.) x + 7
C.) 3x - 2x - 8 - 1
D.) 3x - 2x + 8 - 1
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Answer:
a
Step-by-step explanation:
Please help pic is below!
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Answer:
I cant explain it but I'm going to say 6 I haven't done this in a while but I say 6
Select the correct answer. If a six-sided die is rolled 30 times, how many times can you expect to get a 6?
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Answer:
5
Step-by-step explanation:
6 over 30 simplify it and boom (divide 30 by 6)
Answer:
If you rolled a six-sided die and rolled it 30 times you would have expected an 6 about 5 times so your answer would be B.
Find the area of each 1-10 show work.
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Answer:
hope this helps you out good luck
The 5-foot pole casts a shadow of 3 feet. The building casts a shadow of 12 feet. What is the height of the building?
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Answer:
20 ft
Step-by-step explanation:
Because your are scaling the shadow by 4, you have to scale the height by 4
Answer: 20 foot tall.
Step-by-step explanation: the shadow of the pole is 3 feet. and the shadow from the building is 12 feet.
12 can be divided by 3, 4 times. we know for every 3 foot shadow, the actual object is 5 feet tall.
we just multiply 5 by 4 to get 20.
we can also check our work by dividing 3 by 5. this is 0.6.
then we divide 12 by 20. that is also 0.6.
hence that is the answer.
What is the simplified version of Square root of 3÷512
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Answer:
(1/32)√6
Step-by-step explanation:
Symbolically, this is
√(3/512) 3
which can be rewritten as √(-------------
2√256
The advantage of doing this is that 256 is a perfect square. We now have:
3 √3 √3√2 √6 √6
√(-----------) = ------------ = ------------ = ---------- = ----------
2(256) 16√2 16(√2)² 16(2) 32
Abbie opened a no-interest bank account with $20, and she deposits $14.50 every week. Carlos opened a no-interest bank account with $28, and he deposits $12.50 every week. Carlos and Abbie do not make any withdrawals from their accounts. The equation below can be used to find w, the number of weeks it will take for the balances in their accounts to be the same. 20 + 14.50w = 28 + 12.50w What value of w makes this equation true?
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Answer:
4 weeks
Step-by-step explanation:
14.50 (4) + 20= 78
12.50 (4) + 28= 78
Expand logarithm equation
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Answer:
[tex] log_{2}(x) + log_{2}(y) + log_{2}(z)[/tex]
Step-by-step explanation:
[tex]5 log_{2}(xyz)^{ \frac{1}{5} } \\ \\ = 5 \times \frac{1}{5} log_{2}(xyz) \\ \\ = log_{2}(xyz) \\ \\ = log_{2}(x) + log_{2}(y) + log_{2}(z)[/tex]
Chloe has 3 red pencils, 5 blue pencils, and 1 yellow pencil in her backpack . She chooses one pencil at random, puts it back, and then chooses another pencil .
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Answer:
then she only has eight pencils in the bag.
Step-by-step explanation:
Answer:
Eight
Step-by-step explanation:
please anser 58m^2 + 20m + 10 - 30m + 2m^2 -10
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Answer:
60m^2-10m
Step-by-step explanation:
I did the math
7.5cm+5.5cm+22cm5.5cm+7.5cm
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Answer:
20.5cm+11c^2m^6
Step-by-step explanation:
simplify the expression
x-2y=4 in slope intercept form
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Answer:
y = 1/2x - 2
Step-by-step explanation:
Slope intercept form:
y = mx + b
x - 2y = 4
-2y = -x + 4
2y = x - 4
y = 1/2x - 2
Slope intercept form: y = mx + b
y= answer, y-value
m=slope
x= independent variable, x-value
b= y-intercept (0,b)
x-2y=4
1. Isolate 2y by adding x to both sides of the equation: 2y = 4+x
2. Isolate y by dividing 2 to both sides of the equation: y = 2+(1/2)x
3. Rearrange in slope intercept form.
y=(1/2)x + 2