Answer:
first of all the average score of students is 62.
and there are 27 students
so full marks scored by students are 27×62= 1674
and 1 new students added to that so his score would be 1674+ 53(his marks)= 1727
so now the mean of students are beause there are one more students so 27+1 = 28 then 28÷1727= 61.6 is the mean now
PLEASEEEEE HELP Jonah bought 3 packages of hot dogs and 2 packages of hot dog buns and paid $21.90. He went back and purchased 2 more hot dog packages of and 5 more packages of hot dog buns and paid $23.40. Assuming there was no change in the individual cost of each item, what is the cost per package of hot dogs and hot dog buns?
Answer:
each hot dog packege is 7.30 and each hot dog bun packege is 3.65
Step-by-step explanation:
The diameter of a circular swimming pool is 15 feet. Find the circumference to the NEAREST TENTH. ( one place at the decimal point) (don’t put 47.12)
Answer:
47.1 ft
Step-by-step explanation:
C = πd
C = 3.14 · 15
C = 47.1
C ≈ 47.1 ft
someone please help with this asap!!
Question 8 (4 points)
(08.03)
Identify the factors of x2 - 8x - 20. (4 points)
1) (x + 4)(x - 5)
O 2) (x + 5)(x - 4)
3) (x - 10)(x + 2)
O 4) (x - 2)(x + 10)
PLEASE HELP!!
Answer:
(x − 10)(x + 2)
Step-by-step explanation:
i just took the test and thats the right answer:)
NO FILES OR LINKS, PLS HELP ITS TIMED
I will report if u send links or files
7th grade science help me pls :)
Prateek, Dipti and Manoj jogs daily in the morning around a square park,
they take, 6 mins, 5 mins, and 10 mins respectively to take one complete
round. In one morning, all of them start at same time from the same point and
jog in the same direction for an hour.
A- After how many minutes will all three of them meet again? (30 min)
B- How many times will they meet together during the one hour period?
C- What physical and emotional values can be created through this exercise
STEP BY STEP ANSWER
Answer:
A
To solve this find the LCM of 6, 5 and 10
6 = 2*35 = 510 = 2*5LCM(6, 5, 10) = 2*3*5 = 30They will all meet after every 30 min
B
1 hour / 30 min = 60 min / 30 min =2 timesC
Physical and emotional healthPLEASE HELP!!!! While observing the fare meter in a taxi, a student records the following data:
Reading on Taxi Fare Meter
Time (minutes) Meter Reading
0 $7.75
10 $13.25
20 $18.75
30 $24.25
What is the equation that relates the cost, C(t), of the taxi ride and time, t, in minutes? What is the cost of a 42-minute taxi ride? (7 points)
C(t) = 0.55t + 7.75, $30.85
C(t) = 1.71t + 7.75, $79.57
C(t) = 0.775t + 5.50, $38.05
C(t) = 5.5t + 0.775, $231.78
Answer:
C(t) = 0.55t + 7.75, $30.85
Step-by-step explanation:
the fixed cost is $7.75. this is the cost incurred at zero minutes of the taxi ride
the variable cost or the cost per minutes driven =
(13.25 - 7.77) / (10 - 0) = 0.55
total cost = 7.75 + 0.55t
cost of 42 minutes = 7.75 + 0.55(42) = $30.85
Billy Bob has 23 coins that total $1.70. He found some nickels and dimes in the couch.
How many nickels and dimes did he find?
Answer:
12 nickels
11 dimes
Step-by-step explanation:
Let n = no. of nickels
d = no. of dimes
5n = value of nickels in cents
10d = value of dimes in cents
170 = total value in cents
(1) n + d = 23 (2) 5n + 10d = 170
d = 23 - n 5n + 10(23 - n) = 170
5n + 230 - 10n = 170
- 5n = - 60
n = 12 nickels
d = 23 - 12 = 11 dimes
Check: 12(5) + 11(10) = 60 + 110 = 170 cents or $1.70
what should I start with first ?
Answer:
first, x and x that will be 2x then x and 5 in the green box u get 5x and then pink you get 4x and orange you get 20.
Step-by-step explanation:
What's the answer I need help right away
Answer: ?=28
Step-by-step explanation: 35/7=5
49/7=7
28/7=4
please help! its due in 10 mins
Answer:
144
Step-by-step explanation:
sorry if im wrong its been awhile since ive done this
Find the area of the figure
Answer:
bro its 24
Step-by-step explanation:
semaj bought a souvenir cup at the zoo for 8.50. any time semaj brings the cup back to the zoo he can purchase fountain drinks for 0.75 each. if semaj has spent 15.25vso far, including the orginal purchase of the cup, how many fountain drinks has he purchased
Answer:
9
Step-by-step explanation:
15.25-8.50= 6.75, 6.75÷.75=9
Answer:
9 fountain drinks
Step-by-step explanation:
8.50+0.75x=15.25 is the equation you will use. 8so is your starting point and for every drink you get, it is 75 cents.
Solve by subtracting 8.50 from 15.25
0.75x=6.75
Divide 6.75/0.75 to isolate the x.
x=9
Instructions: Find the missing side. Round your answer to the
nearest tenth.
х
19°
21
The required value of the missing sides with the help of trig ratios we have x = 19.9.
What are trig ratios?If you know the lengths of two sides of a right triangle, you can use trigonometric ratios to calculate the measures of one (or both) of the acute angles.
Here,
To find the missing side in the given right triangle, we can use trigonometric ratios. Specifically, we can use the tangent ratio:
Cosine of an angle = opposite side / adjacent side
In this case, we know the measure of one acute angle (19 degrees) and the length of the adjacent side (21). We want to find the length of the opposite side, which we can represent as x.
cos(19°) = x / 21
Multiplying both sides by 21, we get:
x = 21 cos(19°)
Using a calculator, we can evaluate the right-hand side to get:
x ≈ 19.85
Rounding to the nearest tenth, the missing side is approximately 19.9 units long.
Learn more about trig ratios here:
https://brainly.com/question/14977354
#SPJ7
What is the ratio(fraction) for sin B
Answer:
sin B = 4/5
Step-by-step explanation:
sine is opposite over hypotenuse
PLEASE HELP!!!!!! NO FILES OR LINKS!!!!!! PUT YOUR ANSWER THERE PLEASE!!!!!
Solve each equation.
13a=-5
12−b=12.5
-0.1=-10c
Answer: ⁻[tex]\frac{5}{13}[/tex] , 24.5 , 0.01
Step-by-step explanation:
13a = -5
[tex]\frac{13a}{13}[/tex] = ⁻[tex]\frac{5}{13}[/tex]
12 - b = 12.5
b - 12 + 12 = 12.5 + 12
b = 24.5
-0.1 = -10c
-10c ÷ (-10) = -0.1 ÷ (-10)
c = 0.01
100%
A package of balloons contains 4 red, 6 blue, 3 yellow, and 5 orange balloons, Javier will randomly choose one balloon from the package to
blow up. He then will randomly choose a second balloon to blow up.
What is the probability that Javier chooses an orange balloon and then a yellow balloon?
Answer:
44.4%
Step-by-step explanation:
FIND THE TOTAL NUMBER OF BALLOONS
4 red +6 blue +3 yellow +5 orange =18
( ORANGE +YELLOW /TOTAL × 100 %)
8/18 × 100%= 44.4 % CHANCE
HELP ASAP!!!! thank you if you helped!!!
What is the probability of getting 1 or 5 if a dice is thrown once?
Answer: %16.6
Step-by-step explanation:
there is 6 numbers on a dice
Step-by-step explanation:
1/6
because probability comes between 0 to 1
so ans is:
0.6
PLEASE I’m in classssss
Answer:
25 minutes
Step-by-step explanation:
Think about how many steps per minute Paul can walk. Knowing that he can walk 15 steps in 5 minutes, we can say that Paul can walk 3 steps/minute.
We're asked to figure out how many minutes it would take him if he walks at a constant speed if he takes 75 steps. So we can just divide 75 steps into 3 steps/minute and then we should get 25 minutes!
Answer:
25 Minutes.
Step-by-step explanation:
Its hard to explain.
Lamar sold t-shirts and hats at a festival. He made a $4 profit for each t-shirt he sold. he also made a profit of $34 from selling hats. If he made a total profit of $160, how many t-shirts did he sell?
Answer:
18 t-shirts.
Step-by-step explanation:
Trey made a total profit $106 by selling t-shirts and hats. $34 of that profit was from selling hats, subtract 34 from 106 and you will get 72. So he made a profit of $72 in selling t-shirts. The t-shirts were $4 each, so if you divide 72 by 4 you will get 18. Meaning he sold 18 shirts.
Select the equivalent expression.
Answer:
b.
[tex] {4}^{15} \times {5}^{10} [/tex]
Step-by-step explanation:
In the given expression u can bring the 5^-2 in the neumerator making it 5^2.
Then multiply both powers by 5.
Hope this helps !!!Question 3
Juvenile ground squirrels respond to predators by making alarm calls that can alert others to danger. A biologist conducted a study to investigate how squirrels respond to these alarm calls: run
to burrow or freeze. The biologist played recordings of alarm calls for three samples of ground squirrels, grouped by age, and observed the squirrels' responses. The data for the three age levels
are shown in the table.
Run to Burrow
Freeze
Total
21
18
39
16
24
40
1 to 5 Days Old
6 to 15 Days Old
16 to Zs Days Old
Total
12
7
19
49
49
98
If ground squirrels at different ages respond to the alarm signals in the same proportions, what would be the expected count for 6-to 15-day-old squirrels that freeze?
Answer:
((19)(49)/98)
Step-by-step explanation:
Answer: C ((40)(49)/98)
Step-by-step explanation: The formula for expected count is (row total)(column total)/table total
A new tv show will air live at 8pm Eastern Standard Time.
What time will it air in Central Standard Time?
Answer:
7:00pm
Step-by-step explanation:
What is the difference between the cost of 15 visits with and without a membership? Show your work swimming
Question is incomplete :
It costs $4 to go to the swimming pool
The cost of n visits =
Membership at the pool costs $21. Members pay $3 each time. WHAT is The cost for a member to swim including membership fee?
What is the difference between the cost of 15 visits with and without a membership?
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
Swimming cost = $4
Cost of swimming n Times = cost per swim * number of swims
= $4 * n
= $4n
Membership cost = $21
Cost per swim for members = $3
Swimming cost including membership fee :
21 + 3n ; n = number of visits
For 15 visits ; n = 15
Amount paid :
Members = 21 + 3(15) = 21 + 45 = $66
Non - Member = 4(15) = 60
Difference :
$66 - 60 = 6
Members incur $6 more than non - members
NEED HELP FAST!!! ALGEBRA TWO
Input them onto your calculator and then graph them, see what the parabola does
Can someone please help
Answer:
A. 6
Step-by-step explanation:
Answer:
A. 6
Step-by-step explanation:
6.16441400297
This rounds to 6.
I need help with this ( see question ). Please show workings.
Option E :
700.00
Answer:
(c) 10.08Step-by-step explanation:
Given:
Value of the radio = 84Import tax = 12%Tax amount:
84*12/100 = 10.08Correct choice is (c)
Tickets to the movies cost $9.50 for adults and $6.50 for kids. A large group bought 12 tickets and spent a total of $87. How many kid's tickets did the group purchase?
Please include an equation.
Answer:
12
Step-by-step explanation:
Answer:
9 kids tickets
Step-by-step explanation:
Let k = no. of kid's tickets
12 - k = no. of adult's tickets
9.50(12 - k) + 6.50k = 87
95(12 - k + 65k = 870
1140- 95k + 65k = 870
- 30k = -270
k = 9 kids