Answer: See explanation
Step-by-step explanation:
To convert from 12 hours time to 24 hours time, we've to add 12 to it in the afternoon. Also, the 12 hours clock uses a.m and p.m while the 24 hours doesn't
i. 7:20 am = 07:20
ii. 3:25 pm = 15:25
iii. 1:16 pm = 13:16
iv. 12:51 am = 00:51
2 of 6
© Mark and Henry are marking exam papers. Each set takes Mark 29 minutes and
Henry 1 hour. Express the times Mark and Henry take as a ratio in its simplest form.
Use any method to solve. Write the answer as an ordered pair.
6x + y = 12
-4x - 2y = 0
A. (-6, 3)
B. (3, 6)
C. (6, 3)
D. (3, -6)
Answer:
[tex]x = 3[/tex]
Step-by-step explanation:
[tex]6(2)x + (2)y = 12(2) \\ + \\ - 4x - 2y = 0 \\ = \\ 8x = 24 \\ x = 24 \div 8 \\ x = 3[/tex]
Please help no links or get reported
Parentheses are placed differently in each of the following expressions. Drag the tiles to match the correct answer with each of the expressions. Tiles may be used once, more than once, or not at all.
16 28 88 196
30−2×3+4=
(30−2)×3+4 =
30−2 × (3+4)=
(30−2)x(3+4)=
Answer:
1. 28 2. 88 3. 16 4. 196
Your welcome! :)
21.)
A rock concert brought in $432,500 on the sale of 9,500 tickets. If the tickets sold for
$35 and $55 each, how many of each type of ticket were sold?
Answer:
Step-by-step explanation:
a+b=9500 equation 1
35a+55b=432500 equation 2
a=9500-b modified equation 1 to isolate a
35(9500-b)+55b=432500 substitute value of a in equ 1 into value of a equ 2
332500-35b+55b=432500
20b=100000
b=5000
solve for a
a + b=9500
a + 5000=9500
a=4500
check answer:
35a+55b=432500
35(4500)+55(5000)=432500
157500+275000=432500
432500=432500
Pls someone help me i’ve been asking for so long and no one answers
Which expression is equivalent to 30 ÷ (3 + x)?
Answer:
G maybe?
Step-by-step explanation:
Assume that blood pressure readings are normally distributed with a mean of 117 and a standard deviation of 9.6. If 144 people are randomly selected, find the probability that their mean blood pressure will be less than 119.
Answer:
0.9938
Step-by-step explanation:
Let mean blood pressure be = x
Pr ( x < 119 ) can be found using ' z value ' = ( x - u ) ÷ ( s / √n ) ; where x = 119 , u = mean = 117 , n = no. of sample items = 144 , s = standard deviation = 9.6
z = (119 - 117) ÷ (9.6 / 144) = -2 ÷ (9.6 / 12) = -2 / 0.8 → z = 2.5
Pr (x < 119) = P (z < 2.5)
P = 0.9938
((HELP QUICK PLEASE))
Clark and his friends bought strawberry wafers for $2 per packet and chocolate wafers for $3 per packet at a carnival. They spent a total of $30 to buy a total of 14 packets of wafers of the two varieties.
Part A: Write a system of equations that can be solved to find the number of packets of strawberry wafers and the number of packets of chocolate wafers that Clark and his friends bought at the carnival. Make sure you say what each variable means! (Which one is which wafer type?)
Part B: How many packets of chocolate wafers and strawberry wafers did they buy? Explain how you got the answer and why you selected a particular method to get the answer.
Answer:
Step-by-step explanation:
A. S=strawberry, C=chocolate
S+C=14 equation 1
2s+3c=30 equation 2
B. -2(s+c)=-2(14) multiply equation 1 by -2 to use elimination method
-2s+-2c=-28 modified Equation 1
2s+ 3c=30. Equation 2
C=2 add above two equations.
solve for s
s+c=14
s+2=14
s=12
Used elimination method since it was easier to add the two equations.
check answer by inputting s,c values in either equation.
2s+3c=30
2(12)+3(2)=30
24+6=30
30=30
9514 1404 393
Answer:
2s+3c=30s+c=142 chocolate12 strawberryStep-by-step explanation:
Part A:
I like to use variable names that remind me what they stand for. Here, we can use s and c for the numbers of strawberry and chocolate packets, respectively. The two equations we can write based on the problem statement are ...
2s + 3c = 30 . . . . . . . the total cost of the purchase
s + c = 14 . . . . . . . . . . the number of items purchased
__
Part B:
Ordinarily, I would use one equation for the problem. That equation can be arrived at by substituting for s using the second equation. We choose to substitute for s so the only remaining variable is the one representing the highest-value contributor to the total cost.
s = 14 -c
2(14 -c) +3c = 30 . . . . substitute for s
28 +c = 30 . . . . . . . . . simplify (notice the coefficient of c is positive)
c = 2 . . . . . . . . . . . subtract 28
s = 14 -2 = 12 . . . . find s using the above equation
They bought 2 packets of chocolate and 12 packets of strawberry wafers.
__
Explanation of choices
When the total purchase is n items and x of them are of one kind, then n-x is the number of the other kind. You don't need to write a second equation to figure that out. Hence the problem can be described by a single equation, such as the one highlighted above. Doing this lets you skip a variable definition and a couple of solution steps you don't really need.
The choice of variable as being the high-cost item ensures that its coefficient in the equation will be positive. Fewer errors are made when arithmetic is done with positive numbers. Again, recognizing that early on saves headaches down the line.
Getting to a generic solution
Note that the number we subtract (28) is the "would be" cost of all of the items purchased being the lowest-cost item (14 strawberry packets). This recognition can let you do the entire problem in your head. The difference between the actual cost and the "would be" cost is the result of replacing some number of the lowest-cost items with the higher-cost ones. The difference between total costs is divided by the difference in cost per item to find the number of the higher-cost item. That is the answer to all problems of this type. (30 -14(2))/(3-2) = 2 = the number of $3 packets.
Quadrilateral H prime is the image of quadrilateral H after a sequence of transformations. If quadrilateral H prime is congruent to quadrilateral H, which transformations could have been used? a dilation by a scale factor of 2 followed by a reflection a rotation followed by a dilation by a scale factor of One-half a reflection, a translation of 1 unit left, and then a dilation by a scale factor of 3 a translation of 6 units down, a rotation, and then a reflection
9514 1404 393
Answer:
(d) a translation of 6 units down, a rotation, and then a reflection
Step-by-step explanation:
Dilation by any scale factor other than 1 will prevent the original being congruent with its image. The only answer choice with no dilation is the one shown above.
hey guys in the middle of my final! please help? will mark the brainiest + 30 points !
Answer:
X=90
..............
Some1 help plzz hurry
Answer:
Your answer should be A because that is the only one that multiplies them all by 11
HOPE THIS HELPS
-Todo ❤️
Step-by-step explanation:
Ms. Patterson is putting up new border on her bulletin boards. If the bulletin board is 5.5 feet by 2.75 feet, how much border will she need?
Answer:
16.5 feet
Step-by-step explanation:
Length (L) = 5.5 feet
Width (W) = 2.75 feet
2(l) + 2(w)2(5.5) + 2(2.75)11 + 5.516.5 feet
Ms.Patterson need 16.5 feet border.
Please mark as brainliest if answer is right
Have a great day, be safe and healthy
Thank u
XD
Ill give u 100 pointsss
Answer:
circumference of a circle :
[tex]2\pi r\\[/tex] = 2 π x 6 = 12π inches
help me ugent
12 x 12 ^ 1
Answer:
144 lol
Step-by-step explanation:
Sams rectangular swimming pool measures 1 1/2 meters deep, 10 meters long, and 7 meters wide. What is the volume of the swimming pool?
Answer:
[tex]105\:\mathrm{m^3}[/tex]
Step-by-step explanation:
The volume of a rectangular prism is given by [tex]V=l\cdot w\cdot h[/tex]. Plugging in given values, we have [tex]V=1.5\cdot 10\cdot 7=\boxed{105\:\mathrm{m^3}}[/tex].
Answer:
105
Step-by-step explanation:
Length × Width × height
10×7× 1.5
(10×7) 1.5
70×1.5
=105
What is the radius of a hemisphere with a volume of 1773 cm”, to the nearest tenth
of a centimeter?
Answer is - in cms
Answer:
R=9.5
Step-by-step explanation:
If anyone could pls do this for me
https://brainly.com/question/23716720
Answer:
Radius(r) = 9.5 cm
Happy learning!
Applepi101
Question 11 of 25
Which confidence level would produce the widest interval when estimating
the mean of a population from the mean and standard deviation of a sample
of that population?
A. 38%
B. 26%
C. 54%
D. 61%
61% confidence level would produce the widest interval since it is the highest.
Confidence intervalZ score is used to determine by how many standard deviation the raw score is above or below the mean.
Confidence interval is given by: mean ± margin of error
The margin of error is given by: [tex]z_\frac{\alpha }{2}* \frac{standard\ deviation}{\sqrt{sample\ size} }[/tex]
The confidence interval is dependent on the margin of error which also depends on the z score of the confidence level, hence the interval increases as the confidence level increases.
61% confidence level would produce the widest interval since it is the highest.
Find out more on Confidence interval at: https://brainly.com/question/15712887
Is anyone brave enough to figure this out??? I’ll give Brainly (ToT) thank you !!
Answer: $52.50
Step-by-step explanation:
There is only 12 months and the interest compounds yearly so I guess it is just
3500 x 1.5% = 3500 x 1.5 / 100 = 35 x 1.5 = $52.50
Rounding is not needed
My little cuz need help can you help her please
Its Eight grade math
Solve the equation by using substitution
4x-2y=18
y=5x
Answer: x=-3 and y= -15
Step-by-step explanation: 1 Substitute y=5xy=5x into 4x-2y=184x−2y=18.
-6x=18
−6x=18
2 Solve for xx in -6x=18−6x=18.
x=-3
x=−3
3 Substitute x=-3x=−3 into y=5xy=5x.
y=-15
y=−15
4 Therefore,
\begin{aligned}&x=-3\\&y=-15\end{aligned}
x=−3
y=−15
Answer: The answer would be x=3 43- 35 =18
fast fat sfast eeeee
Step-by-step explanation:
3/9-2/93-2/91/9stay safe healthy and happy..Answer:
1/9
Step-by-step explanation:
=3/9 -2/9 =1/?
=3-2/9 =1/?
=1/9 .
I hope it helps u
mark me as brainlist answer
thank you
200 shares of a stock were bought for $58 per share the broker's
commission was $40 plus $0.25 / share. The stock was later sold for $66/
share the broker's commission was $50 plus $0.32/ share. Calculate the
profit from the sale
$1596
$1000
$1396
$1624
Answer:
1396
Step-by-step explanation:
Profit= revenue-cost
Let's start off by calculating the revenue (the amount they get when they sold the stock) 200*66=13200
Now we need to calculate the cost
40+50+200(.32+.25+58)=11804
13200-11804=1396
Answer:C is correct
Step-by-step explanation:
200*58= 11600
Commission = 40+ (200*0.25)
Commission = 90
Total = 11690
Sell
200*66= 13200
Commission 50+ (0.32*200)
Commission = 114
Sell for 13200-114 = 13086
Profit = 13086 - 11690
Profit = 1396
It is helpful
2(2X – 1) + 5X = 3 ( X -2) + 10
Answer: X=1
Step-by-step explanation:
trust me i had this same question, thats correct
guys im du.mb help me plz
Answer:
..
...the second one .......
4 hunting, 7 fishing, 6hiking, and 3 camping events. How many different outdoor expeditions possible?
Answer:
its 420
Step-by-step explanation:
420+69+69=420
In the figure below, NM and NP are examples of ______ because they share an endpoint.
please look at picture.
intersection is the answer
Help! Can anyone help? I’ve been stuck.. I’ll make sure to give Brainly. The answer is not 3,850. Thank you.
9514 1404 393
Answer:
$3400
Step-by-step explanation:
The way these tax tables are structured, you pay 3% on the first $10,000, 5% on the next $40,000, and 5.5% on the remaining $20,000 above $50,000.
tax = 0.03·10,000 +0.05·(50,000 -10,000) +0.055·(70,000 -50000)
= 300 + 2000 +1100
= 3400 . . . dollars
The tax owed on $70,000 is $3,400.
_____
Additional comment
I like to rewrite this sort of table to a different format:
3% of income . . . . . . . . . . . . . . . applies for income ≤ 10,000(5% of income) -$200 . . . . . . . . applies for 10,000 < income ≤ 50,000(5.5% of income) -$450 . . . . . . .applies for 50,000 < income ≤ 100,000For an income of $70,000, the tax computation using this form is one multiplication and one addition, rather than 3 multiplications and 4 additions as used when navigating the given table.
guys help me im du.mb
Answer:
-2/3x
hope this helps
have a good day :)
Step-by-step explanation:
If each of $A,$ $B,$ $C$ stands for a nonzero digit in the following addition, then find the three-digit number $ABC.$
\[
\begin{array}{cccc}
& A & C & B \\
& B & A & C \\
& B & C & A \\
& C & A & B \\
+ & C & B & A \\ \hline
1 & 2 & 2 & 3
\end{array}
\]
Answer:
Here the pic
Step-by-step explanation:
What are the coordinates of the image a ABC after a dilation with center (0,0) and a scale factor of 3? Explain how you got your answers.
Answer:
1) List the coordinates ΔABC
A(2,2) , B(4,6), C(6,2)2) State the rule of dilation
(x,y) → (3x,3y)3) Apply the rule:
A´. (2,2) A´(3(2),3(2)) =A´(6,6)B´. (4,6) B´(3(4),3((6)= B´(12,18)C´. (6,2) C´(3(6),3(2))=C´(18,6)Ans: A´(6,6) B´(12,18)C´(18,6)
-----------------------------
hope it helps...
have a great day!!
Answer:
A(6,6) B(12,18)C (18,6)
Step-by-step explanation:
hope it helps you...
What is the median of the following numbers? 6,4,1,9,3,8,3,5, 10
please help
Answer:
5
Step-by-step explanation:
Mark brainliest
Answer:
5Explanation:
given:
6, 4, 1, 9, 3, 8, 3, 5, 10
so let's sort it first:
1, 3, 3, 4, 5, 6, 8, 9, 10
the Median is the middle of a sorted list of numbers, and it's 5 in this case
(It doesn't matter that some numbers are repeated in the list)