Answer:
there will be 30 girls at the party
Answer:
There are 30 girls at the party.
Step-by-step explanation:
20 / 2 = 10
10*3 = 30
You divide the 20 boys at the party from the "every 2 boys", and you should get 10.
You then multiply the 10 by 3, for the 3 girls at the party and you should get 30 as an answer, so therefore you should get 30 as your answer.
HELP ASAP PLS!!
what is composite area?? How do we use it in the real world???
Answer:
A composite figure (or shape) is one that can be separated into more than one of the basic figures. Examples of using it in the real world is building cars or houses.
HELP ME PLS!!! This is important
Answer:
2
Step-by-step explanation:
if you see in 1996 the cost was 1.00 and in 2000 it was 3.00 so 3 - 1 = 2
Answer $2.00
1996 had 1 dollar and 2000 has 3 dollars
A tetrahedron is a triangular pyramid whose four faces are identical equilateral triangles. The total lateral surface area is 93 square centimeters. Find the surface area of the tetrahedron.
Answer:
Step-by-step explanation:
The total area is four times a face area and the lateral area is three times a face area.
Let x be the total surface area then
x/93=4/3
x=4(93)/3
x=372/3
x=124 cm^2
You are the manager of a restaurant that delivers pizza to college dormitory rooms. You have just changed your delivery process in an effort to reduce the mean time between the order and completion of delivery from the current 21 minutes. A sample of 36 orders using the new delivery process yields a sample mean of 22.4 minutes and a sample standard deviation of 6 minutes.
A.) Please compute the test statistic. Please round to four decimal places.
B.) Please determine the p-value. Please round to four decimal places.
C.) Using a 0.05 level of significance, please provide the critical value for the appropriate test. Please round to four decimal places.
D.) Using a 0.05 level of significance, is there evidence that the population mean delivery time has been reduced below the previous population mean value of 25 minutes?
Answer:
1.4000 ;
0.0807 ;
1.69 ;
Fail to reject the Null
Step-by-step explanation:
Given :
μ = 21 minutes
x = 22.4 minutes
Sample size, n = 36
Standard deviation, s = 6
H0: μ ≥ 21
H1: μ < 21
Test statistic : (x - μ) ÷ s/sqrt(n)
Test statistic : (22.4 - 21) ÷ 6/sqrt(36)
Test statistic : 1.4 ÷ 1
Test statistic = 1.4000
Pvalue : Using the Test statistic value at α = 0.05 ; One - tail test = 0.0807
The t critical value using a critical value calculator ; DF = (n - 1) = 36 - 1 = 35 ; α = 0.05 = 1.69
Decision region :
Reject H0 if
|Test statistic| > |critical value|
1.4 < 1.69
Hence, we fail to reject H0
There isn't enough evidence they delivery time has been reduced below previous mean
The sum of three consecutive even numbers is 150. What is the smallest of the three numbers ?
If the sum of 3 numbers is 150, then their average is 50. Then if they are consecutive even numbers, then they are 48, 50 and 52. The smallest 48.
Answer:
the smallest of the three numbers is 48
48+50+52 =150
Step-by-step explanation:
smaller number = x
next even number = x+2
next even number = x+4
x+x+2 + x+4 =150
3x+6= 150
3x=144
x= 48
48+2 = 50
48+4 = 52
48+50+52 = 150
Due NOW!!! Please help!
Answer:
At x = 7 and x= 1
Step-by-step explanation:
Set each equation equal to 0 and solve.
x - 7 = 0
x = 7
x-1 =0
x = 1
How do you divide 336 by 6 by long dvision step by step?
Answer:
56 is your answer
Step-by-step explanation:
336/6=(56×3)/3=56
The distribution of tips given by customers who buy only a cup of coffee is bimodal with a mean of $0.29 and a standard deviation of $0.116. The distribution of tips given by customers who buy only a salad is approximately Normally distributed with a mean of $2.89 and a standard deviation of $1.18. If a random sample of 35 tips from customers who buy only a cup of coffee is selected and a random sample of 20 customers who buy only a salad is selected, what is the probability of a sample mean being at least $2.50 more for customers who buy only a salad than for those who buy only a cup of coffee?
Answer:
0.6781
Step-by-step explanation:
Answer:
edge 2021-22
Step-by-step explanation:
This is the pic to the question :)
A rectangular pool has a width of 24 feet. A second rectangular pool has a perimeter of 48 feet, which
is __1
3
the perimeter of the first pool
Answer:
Let x = the length
Let P = the perimeter of the first pool
48 = (1/3)P
144 feet = P
P = 2l + 2w
144 = 2x + 2(24)
144 = 2x + 48
96 = 2x
48 feet = x
for the water balloon fight your mom filled up 100 balloons with 5 gallons of water how many ounces of water did she use make sure to label your ounces 
Answer:
Step-by-step explanation: I don’t know
Someone please help:)
Answer:
2. Addition property of inequality. You're adding 6x to both sides.
3. 4x = 28
4. 4x/4 = 28/4 Justification: Division property of inequality
You're dividing both sides by 4.
5. x = 7
Hope that helps.
Please help look at picture and round to the nearest tenth
Answer:
5) 4.4 in
6) 12 km
7) 10 cm
8) 2 cm
Step-by-step explanation:
5) 8.8/2 = 4.4
6) 24/2 = 12
7) 20/2 = 10
8) 4/2 = 2
Answer and Step-by-step explanation:
To find the radius, you simply divided the diameter of the circle by 2.
5.
8.8 divided by 2 equals 4.4 in.
6.
24 divided by 2 equals 12 km.
7.
20 divided by 2 equals 10 cm.
8.
4 divided by 2 equals 2 cm.
#teamtrees #PAW (Plant And Water)
Find the measure of the supplement of a
16° angle.
Answer:
164
Step-by-step explanation:
Hey There!
If they are supplementary angles then they will add up to equal 180
So given one of the angles (16) we subtract that from 180 to find the value of the missing angle
180-16=164
Your answer is 164
Hope this helps :)
PLEASE HELP!!!!!!!!!!! A clown has two performances today, in cities A and B, which are 240 km apart. The clown drives from City A to City B at a certain speed and performs. On his way back to City A, he drives half the distance at the same speed as before, but then increases his speed by 10 km/h to be on time for his performance in City A. Thus, the drive from B to A takes 2/5 of an hour less than the drive from A to B. At what speed does the clown drive from A to B?
Answer: 50 km/hr
240 = rt
120 = rt1
120 = (r+10)t2
t1 + t2 = t - 2/5 ==> t2 = 1/2 t - 2/5
So you get
240 = rt
120 = (r + 10)(1/2 t - 2/5)
Solve the system
You het 50 km/hr
The picture shows two boxes a teacher stacks in the storage closet.
What is the total volume of the two boxes?
Answer: I donut know
Step-by-step explanation:
Factor 24j-16 to identify the equivalent expressions. Its multiple choice. A=8(3j−2) B=6(4j−2j) C=4(6j−4) D2(12−8)
Answer:
I would say either A or C
Step-by-step explanation:
because when you distribute both they both come out to be 24j - 16
Please helpI suck your money
Answer is in the file below
tinyurl.com/wpazsebu
subtract and write the difference in simplest form 12 5/8 - 7 1/3
Answer:
5 7/24
Step-by-step explanation:
Given the following mathematical expression;
12 5/8 - 7 1/3
First of all, we would subtract the whole numbers;
12 5/8 - 7 1/3 = (12 - 7) 5/8 - 1/3
12 5/8 - 7 1/3 = 5 [5/8 - 1/3]
Next, we subtract the fractions from each other;
5/8 - 1/3
Lowest common multiple (lcm) = 24
5/8 - 1/3 = (15 - 8)/24
5/8 - 1/3 = 7/24
Combining the two parts, we have;
12 5/8 - 7 1/3 = 5 7/24
how do i solve this and what is the answer?
Answer:
I totally get why you are asking , how do I solve this. there is so much implied about this
Step-by-step explanation:
1st you have to recognize that ∠ACB ( in my drawing ) has that same angle as the arc from A to B , so that's implied. next you have to recognize that the triangle formed by ACB with the 124 degree angle at C is an isosceles and therefore has identical angles at A and B so that's 180 = 124 + 2A , so A = 28° and so does B , then , b/c we know that small angle... you also have to know, that the line AC is perpendicular to AD. that they from a right angle and there for... you now know , that ∠BAD is the other part of that 90 or 90= 28 + ∠BAD so ∠BAD = 62°
I went through that kinda fast, there was several "leaps" of using logic to get to the correct answer , using things you know from prior understanding about angles , circles and geometry, you are putting all of the parts together here. :/ kinda daunting in some ways.
Solve for x in the equation 2x2 + 3x-7 = x2 + 5x+39
Answer: x=1+√47 or x=1−√47 (Assuming that the "2x2" is 2x^2)
Step-by-step explanation:
Step 1: Subtract x^2+5x+39 from both sides.
2x2+3x−7−(x2+5x+39)=x2+5x+39−(x2+5x+39)
x2−2x−46=0
For this equation: a=1, b=-2, c=-46
1x2+−2x+−46=0
Step 2: Use quadratic formula with a=1, b=-2, c=-46.
x=1+√47 or x=1−√47
Answer:
The reviews upon the bottom and such were confusing, but for the edge test, the answer is ;
d. x = 1 +/- _/47
Step-by-step explanation:
edg- answers ;p
A membership at Gisele’s Gym costs $145 to join and $3 for each visit.
A membership at Freddie’s Fitness costs $75 to join and $5 for each visit.
For which number of visits would both locations have the same total cost?
10 points
Write an equation of the line in slope-intercept form -5,1) 0,-3) A) y=-4/5x-3 B) y=-4/5x+3 C) y=-5/4x-3 D) y=-5/4xt3
Answer:
A
Step-by-step explanation:
slope rise/run= -4/ 5
plugging it in we get
y= -4/5x+b
-3=-4/5x+b
-3= -4/5(0) +b
-3=0+b
b=-3
so we get y= -4/5x-3
or A
if my answer helps please mark as brainliest.
I need help ASAP will mark the brainliest
Answer:
addition property
Step-by-step explanation:
Evaluate −6 − (−1). (1 point)
Select one:
a. −7
b. 5
c. −5
d. 6
Write an equivalent expression to m-(8-3m) without parentheses. Write in the boxes
Answer: 4m-8
Step-by-step explanation:
Remember to distribute the negative sign!
m-8+3m
4m-8
Answer: 4m-8
Step-by-step explanation:
Distribute the negative sign
m - 8 + 3m
4m-8
HELP PLEASE!!!!!! PLEASE!!!!
Answer:
x = 15°
Step-by-step explanation:
7x + 28° = 133° { being vertically opposite angles }
7x = 133° - 28°
7x = 105°
x = 105° / 7
x = 15°
< WPZ = 133° {being vertically opposite angles }
OR
< WPZ = 7x + 28° = 7 * 15 + 28° = 133°
Hope it will help :)❤
Solve the inequality:
3z−1≤−7
Select one:
z≥2
z≥−2
z≤−2
z≤2
Answer:
[tex]z \leqslant - 2[/tex]
Step-by-step explanation:
1) Add 1 to both sides.
[tex]3z \leqslant - 7 + 1[/tex]
2) Simplify -7 + 1 to -6.
[tex]3z \leqslant - 6[/tex]
3) Divide both sides by 3.
[tex]z \leqslant - \frac{6}{3} [/tex]
4) Simplify 6/3 to 2.
[tex]z \leqslant - 2[/tex]
Therefor, the answer is Option C.
1,2,3 or 4
Thank you!
Answer:
Option 3
Step-by-step explanation:
Which equation would you use to solve the problem?
If S = 42° and ST = 8, find RS.
Answer:
c
Step-by-step explanation: