Step-by-step explanation:
There are 10 + 20 = 30 total students in the class.
Total marks for the class = 60 * 30 = 1800.
Total marks for the girls = 54 * 20 = 1080.
=> Total marks for the boys = 1800 - 1080 = 720.
Mean mark for the boys = 720 / 10 = 72.
Brad had a small gathering at a local steakhouse. The steakhouse offers three dinner platters which vary by size and price. They ordered 4 of the 6-ounce platters, 2 of the 8-ounce platters, and 2 of the 11-ounce platters.
Steak Platter Prices
• 6-ounce $9.95
• 8-ounce $12.95
• 11-ounce $15.95
If a gratuity of 18% was added to the bill, which of the following is closest to the total of the steak platters and gratuity, ignoring sales tax?
A.
$114
B.
$137
C.
$18
D.
$115
Answer:
D.) $115
Step-by-step explanation:
9.95 x 4 = 39.8
12.95 x 2 = 25.9
15.95 x 2 = 31.9
39.8 + 25.9 + 31.9 = 97.6
97.6 x 0.18 = 17.568
97.6 + 17.568 = 115.168
115.168 ≈ 115
9.95 x 4 = 39.8
12.95 x 2 = 25.9
15.95 x 2 = 31.9
39.8 + 25.9 + 31.9 = 97.6
97.6 x 0.18 = 17.568
97.6 + 17.568 = 115.168
115.168 ≈ 115
Therefore, the closest to the total of the steak platters and gratuity, ignoring sales tax is $115.
Match the equation to its description.
y= (x + 4)2 – 2
Right 4, Up 2
Right 4, Down 2
Left 4, Up 2
Left 4, Down 2
Answer:
i think right 4 up 2!! Sorry if i'm wrong!
6x +8=5x=4
what is the value of x
Answer:
x = -4/11
Step-by-step explanation:
add the x values.
11x+8=4
subtract 8 from each sides
11x=-4
divide by 11
x=-4/11
Out of 30 cookies,
4/5
are chocolate chip. How many cookies are chocolate chip
Answer:
24 are chocolate chip
Step-by-step explanation:
Hope this helps =)
Adah produces scented candles. The cost of producing a candle is $1.25. Adah sells a candle for $2.50. She has a start-up costs of $300.
a) Write a system of two equations that models this situtaiton.
b) Determine the number of candles Adah must sell to break even. Solve the system using your chosen method and identify the method used.
Answer:
(a) The system of two equations are
c = $300...(1)
p = x × ($2.50 - $1.25)...(2)
(b) The number of candles she must sell to break even are 240 candles
Step-by-step explanation:
The cost of of producing a candle = $1.25
The price at which Adah sells a candle = $2.50
The stat-up cost of producing candles = $300
(a) Let c represents the start-up cost of producing candles, let p represent the profit Adah makes from selling candles and x represents the number of candles sold, we have;
c = $300...(1)
p = x × ($2.50 - $1.25)...(2)
(b) The number of candles Adah must sell to break even is given as follows;
At break even point, Start-up cost = Profit
∴ c = p
300 = x × (2.50 - 1.25) = 1.25·x
∴ x = 300/1.25 = 240
Therefore;
The number of candles she must sell to break even = 240 candles
I NEED HELP ASAP PLSSSSSSS
Answer:
53 degrees
Step-by-step explanation:
Answer:
53
Step-by-step explanation:
180-127=53
could somebody help
Answer:
112
Step-by-step explanation:
[tex]12 + (( {5}^{2} ) \times 4) \\ 12 + (25 \times 4) \\ 12 + 100 \\ = 112[/tex]
please mark as brainliest
{2x−y=2 2x−2y=4 solve by sustitution
ASAP!!!!!!!!!!!! I NEED HELP!!!!! I WILL MARK BRAINLIEST!!!!!!!
I just need help with answering this question
Answer:
I learned this I I kinda remember what you do is times everything together example 4×7×6 like that do all the sides
Step-by-step explanation:
multiply 17, 12, and 24. then multiply 10, 4, and 12. then add those 2 products.
HOPE THIS HELPS :)
Evaluate the function f(-2) - h(4) given the following functions: f(x) = 4x 2+ 9 h(x) = 3x - 14
Answer:
-86
Step-by-step explanation:
simplify each equation as much as possible
f(x)= 4x(2+9) add
4x(11) multiply
f(x)=44x
substitute given numbers into each equation
44(-2)=-88 3(4)-14= 12-14=-2
combine equations
-88-(-2)= -86 add since you are subtracting a negative number
As a cold front moved in, the temperature dropped 3 degrees each hour for 6 hours. What was the total temperature change after the 6 hours?
Answer:18°
Step-by-step explanation:
6x3=18
which story represents the graph below
a a car accelerates, then maintains its speed before speeding up again
The total cost in dollars to buy uniforms for the Ping-Pong team can be found using the function c=22.50+5 where u is the number of uniforms bought.if there are at least 7 players but not more than 10 players on the Ping-Pong team, what is a reasonable range for the situation? A.{7,8,9,10} B.{162.50 , 185, 207.50, 230} C. 7≤ x ≤ 10 D. 162.50 ≤ y ≤ 230
answer: b
explanation:
it’s asking for the range so it can’t be c or d because those are used in continuous data only so it’s between a and b but it can’t be a as a is the range of players but b is the range of the cost so the answer would then be b
PLEASE HELPP ill give brainiest
Answer:
-8
Step-by-step explanation:
PLEASE HELP!! THANK YOU!!
Step-by-step explanation:
i know the coordinates are ( 0,-3 1/2 ) or ( 0, -3.5 ) for D
Answer:
(0,-2)
Step-by-step explanation:
Parallelograms have parallel lines and equal opposite lines.
You can count.
For Ex: A is 1 above and 5 to the left of B.
So D should be 1 above and 5 to the left of C.
C is at (5,-3)
Go up 1 and left 5 and you get (0,-2)
Suppose we collect a simple random sample of 200 registered voters from a large city. We find that 25% of the voters in the sample are Independents. Find a 95% confidence interval for the percentage of registered voters in the city that are Independents. Round your answer to at least two decimal places.
Answer:
0.05<x<0.06
Step-by-step explanation:
The formula for calculating the confidence interval is expressed as;
CI = p' ±z * √p(1-p)/n
z is the z score at 95% CI
p is the proportion of the independent sample
n is the sample size
p' = X/n
p' = 0.25/200
p' = 0.00125
Given
z = 1.96
p = 25% = 0.25
n= 200
Substitute into the formula;
CI = p' ±1.96 *√0.25(1-0.25)/200
CI = p' ±1.96 * √0.25(0.75)/200
CI = p' ±1.96 * 0.0306
CI = p' ±0.0605
CI = 0.00125 ±0.0605
CI = (0.048, 0.06175)
CI = (0.05, 0.06)
0.05<x<0.06
Find the distance between the two points to the nearest tenth. (0,-5) and (-4,2) 5 5.3 5.2 5.6
Pls answer ASAP, will mark brainliest
Answer:
15
Step-by-step explanation:
Tom fed the dog 3 times as many times as her sister last week. His sister walked the dog 9 times. Max said he could multiply 4 times 9 to find out how many more times he walked the Dog than his sister. Is Tom correct?
Answer:
No
Step-by-step explanation:
The calculation that Tom is trying to do would be to calculate how many times he walked the dog if he had walked the dog 4 times as many times as his sister, who in this scenario walked the dog a total of 9 times. Since, in this scenario there is no mention of how many times Tom walked the dog then this calculation cannot be made and I would say that Tom is not correct.
Answer: nope
Step-by-step explanation: it’s just obvious
What’s the solution to the equation
ANSWER: D
30.16=17.56+5x
30.16-17.56=5x
12.6=5x
x=12.6/5
x=2.52
HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN
HELP HELP PLEASE PLEASE
The answer would be 2010 I think! im SO sorry if its wrong! :3
Help plz and dont IGNORE ME!!! plzzzzzzzz
Answer:
2.
=10280
= 1.0280x10^4
3.
= 2800000
= 2.8x10^6
4.
= 56500
= 5.65x10^4
5.
= 35740
=3.574x^4
6.
=54160
=5.416x10^4
7.
=16836700
=1.68367x10^7
8.
=7080
Mark me the brainiest ❤️
Nooooooooooooooooooooooo
Answer: yes
Step-by-step explanation:
Simply just yes
Answer:
YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Step-by-step explanation:
if rst ≅ npq, m∠r = -7x +9, m∠n= -10x, find m∠r and m∠n
Answer:60
Step-by-step explanation: x=10
-7+9=2*10=20
-10*10=100
180-100-20=60
Please help! 2nd time asking!
Answer:
4
Step-by-step explanation:
Function 1 is moving at a constant rate meaning it has the rate of change of 0/1 or 0.
Function 2 says y is 4x meaning that the rate of change is 4/1 or 4.
0 - 4= I-4I or 4
Which postulate can be used to prove congruence? Please help
Answer: Choice E) Insufficient information to prove congruence.
============================================================
Explanation:
We're given that AB = DC and BE = CE. This means we have two pairs of congruent sides and we could use SAS if we know that angle ABE = angle DCE. However, we don't know this information.
While we do know that angle AEB = angle DEC (vertical angle theorem), this is not enough information. Recall that SSA is not a valid congruence theorem. The angles in question are not between the sides mentioned in the previous paragraph.
Therefore, we don't have enough information to prove the triangles congruent.
-----------------
Side notes:
We can't use SSS because we don't have info about three pairs of sides. We only have info about two pairs of sides.We can't use ASA because we only have info about one pair of angles.We can't use HL because this only applies to right triangles.Help Will give crown
Answer:
a) x=3
y=6*3+4
=22
b) x=4
y=6*4+4
=24
c) x=6
y=6*6+4
=40
d) x=7
y=6*7+4
=46
Hope it will help you......Amanda's dog eats 7 1/2 Pounds of dog food in 2 weeks how much does amandas dog eat each day?
Answer:
0.535 pounds
Step-by-step explanation:
Answer:
15/28 pounds
Step-by-step explanation:
7 1/2 ÷ 14 days = 15/28
PLEASE HELP ASAP
A realtor found a home for a couple that will require a monthly loan payment of $1460. If the lender insists that the buyer's monthly payment not exceed 28% of the buyer's monthly income
find the minimum monthly income required by the londer. Simplify your answer.
Answer:
$5214.29 or $5214
Step-by-step explanation:
Set up a ratio table:
[tex]\frac{1460}{x}[/tex]=[tex]\frac{28}{100}[/tex]
You need you multiply the monthly loan by 100, then divide by 28.
(1460 · 100) ÷ 28
146000 ÷ 28
5214.28571
Round to the nearest cent:
$5214.29
Unless by simplify it means to the nearest dollar:
$5214