Answer:
12
Step-by-step explanation:
25%=100/4
3x4=12
Answer:
don't know
don't know
don't know
workout a to e
plz help
will mark brainlist
Answer: a= 14 , b= 15, c =15 , d =18 , e= 18.
Step-by-step explanation:
Stratified sample is a sampling technique used to show the participation of each group present in the population..
Person sampled from each group =[tex]\dfrac{Person\ in\ group}{Population}\times sample\ size[/tex]
Total students = 140+150+150+180+180 =800
In sample
Person of Year 7 students = [tex]\dfrac{140}{800}\times80=14[/tex]
Person of Year 8 students = [tex]\dfrac{150}{800}\times80=15[/tex]
Person of Year 9 students = [tex]\dfrac{150}{800}\times80=15[/tex]
Person of Year 10 students = [tex]\dfrac{180}{800}\times80=18[/tex]
Person of Year 11 students = [tex]\dfrac{180}{800}\times80=18[/tex]
Hence, a= 14 , b= 15, c =15 , d =18 , e= 18.
which graph shows a consistent relationship between time and distance? Explain how you know? And name some similarities and differences between the graph?
Plz help me it would be a help plz explain
Step-by-step explanation:
1.
[tex] \frac{15}{12} = \frac{15 \div 3}{12 \div 3} = \frac{5}{4} [/tex]
2.
[tex] - \frac{12}{15} = - \frac{4}{5} [/tex]
3.
[tex] \frac{12}{15} = \frac{4}{5} [/tex]
4.
[tex] - \frac{15}{12} = - \frac{5}{4} [/tex]
The law of cosines is used to find the measure of Angle Q. Triangle Q R S is shown. The length of Q R is 20, the length of R S is 24, and the length of Q S is 34. To the nearest whole degree, what is the measure of Angle Q? 44º 49º 54º 59º
Answer:
44º
Step-by-step explanation:
We are given that a triangle QRS
QR=20 units
RS=24 units
QS=34 units
We have to find the measure of angle Q.
We know that cosine law
[tex]a^2=b^2+c^2-2bc cos A[/tex]
Using the formula
[tex](24)^2=(20)^2+(34)^2-2\times 20\times 34 cos Q[/tex]
[tex]576=1556-1360 cosQ[/tex]
[tex]1360osQ=1556-576[/tex]
[tex]1360 cos Q=980[/tex]
[tex]cos Q=\frac{980}{1360}[/tex]
[tex]cos Q=0.72[/tex]
[tex]Q=cos^{-1}(0.72)[/tex]
[tex]Q=44^{\circ}(approx)[/tex]
Answer:
Short and sweet... 44º
Step-by-step explanation:
:)
HELP HELP HELP
Jessica conducts an experiment. She flips a coin 100 times. In her experiment, she gets heads 40 times and tails 60 times. Based on her results, if she flipped the coin another 50 times, she should expect to flip heads _____ times.
Based on her results, if she flipped the coins another 50 times, she should expect to flip heads 20 times. If Jessica flips a coin 100 times and gets 40 times heads and the next time she flips a coin 50 times she should get 20 because, 100 divide 2 is 50 so you would have to divide 40 with 2 and get the answer of 20.
Hey you hi help me with this pls
Answer:
D) 2 + ( -35)Explanation2_ 35 = -33
2 + (-35) = -33
Answer:
D) 2+(-35)
I hope it help
Roast Beef Deli Meat is on sale for $8.59 per pound. At this rate how much would it cost to get 1.8 pounds of Roast Beef?
Answer:
15.42$
Step-by-step explanation:
Need done ASAP due later today SHOW WORK
Answer:
x = 56, x = 30
Step-by-step explanation:
(a)
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 5, then
sum = 180° × 3 = 540°
sum the interior angles and equate to 540
72 + 2x + 99 + 89 + 3x = 540, that is
5x + 260 = 540 ( subtract 260 from both sides )
5x = 280 ( divide both sides by 5 )
x = 56
----------------------------------------------------------------
(b)
The sum of the exterior angles of a polygon = 360°
sum the exterior angles and equate to 360
94 + 56 + 4.5x + x + 1.5x = 360, that is
7x + 150 = 360 ( subtract 150 from both sides )
7x = 210 ( divide both sides by 7 )
x = 30
Please help please....
At the Henry Doorly Zoo the giraffe grew from 24 inches to 60 inches long in five months. Find
the percent of change and show your work clearly. Is this a percent increase or percent
decrease?
Answer:
150%
It is a percentage increase
Step-by-step explanation:
We start by calculating the percentage increase
Mathematically, we have this as;
Percentage increase = (new value - old value)/old value * 100%
New value = new height = 60 inches
old value = old height = 24 inches
Substituting these values, we have ;
(60-24)/24 * 100%
= 36/24 * 100%
= 1.5 * 100% = 150%
It is a percentage increase as we can see growth
Find the length of the missing side (nearest tenth).
15 in
11 in
Rylee is baking cupcakes for a bake sale. She spends $35 on supplies and she plans to sell the cupcakes for $2.50 each. How many cupcakes must she sell in order to make a profit of at least $75?
Answer:
44 cupcakes
Step-by-step explanation:
Since she spent $35, and she wants to profit $75, she needs to make $110.
110/2.5 = 44
Which point is located at (Negative 0.5, 0.75)?
point B
point G
point M
point Z
Its point z
Hope I helped
Find Y When x=2 y=5x-9
Answer:
1
Step-by-step explanation:
y = 5(2) -9
y= 10 -9
y = 1
Please help me out <3
Answer:
13 sides, 1380 degrees
Step-by-step explanation:
180 / 3 =60
so every side is 60 degrees
8 : 1080
+60 =
9 : 1140
+60
10 : 1200
+60
11 : 1260
+60
12 : 1320
+60
13 : 1380
done!
What is the answer and please tell me how you got the answer
A. (x, y) (2x, 2y)
B. (x, y) (4x, 4y)
C. (x, y) (1\2x, 1\2y)
D. (x, y) (1/4x, 1/4y
Answer:
A. (x,y) - (2x,2y)
Step-by-step explanation:
$25 rebate on $47 pants
Answer:
$35.25
Step-by-step explanation:that’s the answer
PLEASE HELP Point P is plotted on the coordinate grid. If point Sis 10 units to the left of point P what are the coordinates of point S? TO 8 -12-10-8-6-4 20 2 4 6 8 10 12 O 07604 F - 10 - 12 (6. -14) O(-4,-4) O(-4, -14) (6,4)
Answer:
your answer is (-4,-4) because each space is two units.
The surface area of the planet Saturn is about 42,700,000,000 square kilometers. In scientific notation, the number is written as 4.27 x 10°. What is the value
of a?
Answer:
427
Step-by-step explanation:
The net of a triangular prism and it's dimensions are shown. What is the total surface area of the prism in square ft?
Answer:
270 cm²
Step-by-step explanation:
The question is not complete, but a similar question is attached.
Solution:
A prism is a three dimensional polygon with two identical and opposite faces. These bases are called the base of the polygon.
A triangular prism is a prism in which its bases are triangular in shape and it also has three rectangular sides.
The total surface area (TSA) of a triangular prism is given by:
TSA = area of triangle 1 + area of triangle 2 + area of rectangle 1 + area of rectangle 2 + area of rectangle 3
Area of triangle 1 = (1/2) * base * height = 1/2 * 6 * 5 = 15 cm²
Area of triangle 2 = (1/2) * base * height = 1/2 * 6 * 5 = 15 cm²
Area of rectangle 1 = length * breadth =15 * 6 = 90 cm²
Area of rectangle 2 = length * breadth =15 * 5 = 75 cm²
Area of rectangle 3 = length * breadth =15 * 5 = 75 cm²
TSA = 15 cm² + 15 cm² + 90 cm² + 75 cm² + 75 cm² = 270 cm²
An equation is shown below. 3(2x+1)+5=2(3x+5) Which of the following statements describes the solutions to this equation?
Answer:
Student should show that the solution to the system of equations 7x - y = 4 and 2x - 3y = 1 is the same as the solution to the given system of equations.
Step-by-step explanation:
Given System of equations is 5x + 2y = 3 (equation 1) and 2x - 3y = 1 (equation 2)
Second System of equations is 2x - 3y = 1 and 7x - y = 4
How we got 7x - y = 4
Step 1: Multiply 2x - 3y = 1 by 1, we get the same 2x - 3y = 1
Step 2: Add 5x + 2y = 3 with 2x - 3y = 1
5x + 2x + 2y - 3y = 1
7x - 3y = 1
We have got second equation 7x - 3y = 1
Thus, Student should show that the solution to the system of equations 7x - y = 4 and 2x - 3y = 1 is the same as the solution to the given system of equations.
hey can someone please help me asap
Answer:
slope: 1/5
y-intercept: 4
when rounding what does it 4 or less mean
Answer:
4 or less means you round down
Step-by-step explanation:
Answer:
4 or less means the if the number you behind what you are round if it is less than 4 round down.
Example:
110
if im rounding my hundreds place go to your tenths place if your tenths place is less than 4 then round down
Order the numbers from least to greatest.
99,72,9.7
and
From least to greatest.

Answer:
9.7, 72, 99
Step-by-step explanation:
Answer:
9.7,72,99
Step-by-step explanation:hope this helps!!:D
Please help me out and I'll mark you Brainllest.
Answer:
top right because then youll have enough time to get the money
Step-by-step explanation:
Answer:
The picture Is blocked
Step-by-step explanation:
Your school's talent show will feature 8 solo acts and 2 ensemble acts. the show will last 82 minutes. The 4 solo performers judged best will give a repeat performance at a second 54 minute show, which will also feature the 2 ensemble acts. Each solo acts lasts x minutes, and each ensemble act last y minutes. write a system of equations
Answer:
System of equations: 8x + 2y = 82 and 4x + 2y = 54
Step-by-step explanation:
Given that:
8 solo acts and 2 ensemble acts will last for 82 minutes
4 solo acts and 2 ensemble acts will last for 54 minutes
Let,
x be the minutes solo acts lasts
y be the minutes ensemble acts lasts
According to given statement;
8x + 2y = 82
4x + 2y = 54
Hence,
System of equations: 8x + 2y = 82 and 4x + 2y = 54
Ron traveled 6.8 miles of his delivery route in 12 hours. At this same rate, which of the following is closest
to the time it will take for Ron to travel 20 miles?
O 3 hours
O 3.5 hours
O 6 hours
O 6.5 hours
Answer:
6.5 Hours
Step-by-step explanation:
If it takes Ron 12 hours to go 6.8 miles then 8 hours more is only 1.7 miles an hour. It will take him well over 6.5 hours to do 20 miles so 6.5 hours is the closest answer
The time that should be taken for Ron to travel 20 miles in 3.5 hours.
Given that
Ron traveled 6.8 miles in 1.2 hours.
We need to find out the time that should be taken for Ron to travel 20 miles.
So, the time taken should be
[tex]= \frac{20\ miles \times 1.2\ hours}{6.8\ miles}[/tex]
= 3.5 hours
Here we assume that time should be 1.2 hours instead of 12 hours.
Therefore we can conclude that The time that should be taken for Ron to travel 20 miles in 3.5 hours.
Learn more about the distance here: brainly.com/question/23774048
What is the slope from the given table
Answer:
[tex]\frac{3}{1}[/tex]
Step-by-step explanation:
For Every 1 step on x-axis graph goes up 3 steps
The perimeter of a rectangle is 27 inches. The ratio of length to width is 2:1. What are the length and width of the rectangle? Round answers to the nearest tenth.
Perimeter is the sum of the two lengths plus the sum of the two widths.
Divide the perimeter in half and that is the sum of one length and one width.
27/2 = 13.5
The ratio is 2:1, add the ratio: 2 +1 = 3
Divide the sum by 3:
13.5/3 = 1.5
Multiply that the each portion of the ratio:
4.5 x 2 = 9
4.5 x 1 = 4.5
The length is 9 inches
The width is 4.5 inches
help me pleaseeeeeeeeeeeeeeeeeee
Answer:
7/8, 7/10, 7/11, 7/12
Answer:
7/12 , 7/11, 7/8, 7/10
Step-by-step explanation:
