Answer:
.33
Step-by-step explanation:
Three postal workers can sort a stack of mail in 15 minutes, 15 minutes, and 30 minutes, respectively. Find how long it takes them to sort the mail if all three work together.
min
Answer: 10 minutes
Step-by-step explanation:
x·1/20 + x·1/25 + x·1/100 = 1
Multiply each term by 100 to clear the equation of all fractions
100x/20 + 100x/25 + 100x/100 = 100
5x + 4x + 1x = 100
10x = 100
x = 10
The answer is 10 minutes
HELP! WILL GIVE BRANLIEST!!
Answer:
X=8
z=80
Step-by-step explanation:
Okay to find X you gotta find the other angle.
The other angle is 100 which is also vertical To (6x+52)
Vertical angles are equal or congruent so you cna make an eqaution to equal it
6x+52=100
Solve it like a normal equation
x=8
To find Z you gotta realize that 4 angles equal 360 degrees.
We knwo the two vertical angles, 100 and 100. Z is vertical to no name angle so its equal so it can also be Z. Z+Z=2z
Now If you add em all up you should get 360
2z+100+100=360
2z+200=360
Solve from here
z=80
How many lines of symmetry does the figure below have?
Answer:
C
Step-by-step explanation:
there are 4 of the exact same line going in 4 directions
Could x = - 5 be a solution to the inequality
-6 < 3x + 9 < 21?
Step-by-step explanation:
[tex]3x + 9 = 3( - 5) + 9 \\ = - 15 + 9 \\ = - 6[/tex]
3x+9 is equals to -6 , not more than based on the inequality, but it is lesser than 21.
However, the solution must fulfil both criteria to be a solution to the inequality. Therefore x = -5 is not a solution to the inequality.
What is the volume of a hemisphere with a radius of 3.1 in, rounded to the nearest tenth of a cubic inch?
The volume of a hemisphere with a radius of 3.1 in. is 62.39 cubic inch
What is a hemisphere?The Hemisphere is the half part of a sphere.
What is the volume of a hemisphere?The volume of a hemisphere = (2/3)πr³ cubic units where r is the radius
Given radius is 3.1 in.
volume = (2/3)π(3.1)³
=62.39 cubic inch
Thus the volume of a hemisphere with a radius of 3.1 in. is 62.39 cubic inch
To know more about volume of a hemisphere click here
https://brainly.com/question/23178590
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A normal six sided die is thrown once the number of outcomes in the sample is
Answer:
1/6
Step-by-step explanation:
Since it's a six sided die there's 6 different sides the die could land on the probability of landing on certain number depends on how much you roll the die.
For example: you roll the die 10 times and you land on 3, 5 times. the probability landing on 3 was 5/10 or 50%
. If we share 9 sandwiches with 10 students, how much of a sandwich does each student get? Explain using examples or drawings(Middle schoolMATH) FIRST TO AWNSER CORRECTLY GETS A BRAINLY AWARD!
Answer:
Step-by-step explanation:
........ whoops
Level 5:
C. Two motorcycles start at the same point. One travels 15 km due north and stops while the other travels 32 km due west
and stops. Which value is closest to the distance between the motorcycles when they are both stopped?
A. 28.3 km
B. 47.0 km
C. 35.3 km
D. 21.9 km
9514 1404 393
Answer:
C. 35.3 km
Step-by-step explanation:
From your knowledge of right triangles, you know that the hypotenuse is longer than the longest leg and shorter than the sum of the legs.
For this geometry, the distance of interest is longer than 32 km and shorter than 15+32 = 47 km. The only answer choice in the correct range is ...
35.3 km
1. You had $ 1 million, but then you spent $999 and then $22.222. How much
money do you have left?
ANSWER:
Look at this picture that will explain everything.
The sampling distribution for the ANOVA test is
a. the Z distribution.
b. the t distribution.
c. the F distribution.
d. None of the answer choices
Answer:
The F distribution
A figure is shown.
4 cm
7 cm
10 cm
2 cm
3 cm
6 cm
Which expression shows how to find the area of the figure?
Answer:
Then it is just a matter of plugging in the values into the formula. For example, if one base is 6 cm long, the other is 10 cm long and the height is 4 cm, the area is then (6 + 10) / 2 x 4 = 16 / 2 x 4 = 8 x 4 = 32 cm 2 (32 square centimeters).
Step-by-step explanation:
What fraction of the whole are the blue piece, the orange piece, the red piece, and the purple piece. How do you know?
Answer:
blue piece is 1/2 because it takes up half of the square, the purple is only 1/4 because it would take 4 purple to fill the big square and the orange is half of the purple so it takes double of pieces so 8 pieces which is 1/8
Given the diagram below, what is mD?
Answer:
A
Step-by-step explanation:
Answer:
A. 72
Step-by-step explanation:
There are two ways to solve this problem. First of all, this quadrilateral is a trapezoid because the top two angles are congruent and there is one pair of parallel lines. One way to solve the problem is to remember all trapezoids have a measure of 360. So, mD=360-(108+108+72); this equals 72. Additionally, in a trapezoid, the bottom two angles are always congruent; therefore, angle D must equal 72 degrees.
GUYS PLEASE ASAP I WILL FAIL IF U GUYS DONT ANSWER PLEASE
WHICH ONE IS INCORRECT
Answer:
The table
Step-by-step explanation:
The puppy weighs 0.8 pounds at birth not 0
Whats the area of number 10 ? Help please, help me do it and explain if you can! BTW THIS IS COMPOSITE SHAPES
Answer:
10. Area = 72 units²
Step-by-step explanation:
10. The shape in number 10 is a trapezoid.
Area of trapezoid = ½(a + b)*h
Where,
a = 6
b = 12
h = 8
Area = ½(6 + 12) * 8
Area = ½(18)8
Area = 72 units²
Simplify. Consider all cases: /(x-4)+7/
Answer:
the correct answer is x+3
The ratio of red jellybeans to green jellybeans is 5:9. If there are 84 jellybeans, how many are green jellybeans are there?
Answer:
30 red and 54 green jelly beans
Step-by-step explanation:
Please mark brainliest :)
Four out of 18 male student and
three out of 21 temale studerit failed
on one weekly online test. Are the
ratios of male and female student
who failed this test proportion? why or why not?
Answer:
Male 2:9
Female 1:7
Step-by-step explanation:
Find 50% of 84
Find 25% of 84
Find 75% of 84
Answer:
1. 42
2. 21
3. 63
Step-by-step explanation:
Hope this helps have a nice day!
Answer:
1) 42
2) 21
3) 63
Step-by-step explanation:
1)
50% = 0.5
84(0.5) = 42
2)
25% = 0.25
84(0.25) = 21
3)
75% = 0.75
84(0.75) = 63
Does this represent a function? Why or why not *explain*
4≤n−4. a little help?
Answer:
Just isolate the variable by performing inverse operations. Its like solving an equation but the sign is different.
Step-by-step explanation:
Well add 4 to both sides
8≤n
Thats basically it
Answer:
n ≥ 8
Step-by-step explanation:
We want to isolate n to solve the inequality. To do that, you add 4 to both sides, so 4 + 4 = 8 on the left and n - 4 + 4 = n on the right. That leaves you with 8 ≤ n, or n ≥ 8.
A rectangle has sides that are 7 2/5 inches wide and 11 2/3 inches long what is the perimeter of the rectangle
A.36 1/2
B. 36 5/15
C. 37 5/6
D.38 1/2
Answer:
[tex]38 |5| [/tex]
b is the answer
The baseball park is 4200 m from Camden's house. I took him 30 minutes to get there.
What was Camden's speed?
Please I have a time limit of 45 mins
Answer:
The answer is 2.1 m squared
help please need it adap
Answer:
supplementary angle to x = 180 - 31 - 43 - 32 = 74°
x = 180° - 74° = 106°
Kaya made the graph of the linear system x+y=1
2x-3y= - 18
What is the solution to the linear system?
Answer:x-interpect: -9
y-intercept=6
slope=2/3
Step-by-step explanation:
Solve for v
11v + -15v = 8
V=
Answer:
Step-by-step explanation:
Solution= V=0
Answer:
[tex] \bf \huge2[/tex]
Step-by-step explanation:
Given :11v + -15v = 8to find :solve for vexplanation :step 1 : Simplify both sides of the equation.
⟼ 11v + -15v = 8
⟼ 11v - 15v = 8
⟼ - 4v = 8
step 2 : Divide both sides by - 4.
⟼ - 4v / - 4 = 8 / - 4
⟼ v = - 1 × - 2
⟼ v = - 2.
∴ v = 2.
Using the graph, determine the coordinates of the vertex of the parabola.
Answer:
vertex is 1, -6
Step-by-step explanation:
Is AB tangent to circle C?
Answer:
The line AB is a tangent of the circle with center C.
I need help with this fast
Answer:
Evaluate for x=0.02,y=0.1,z=0.3
(3)(0.02)−(2(0.12)+0.33)
(3)(0.02)−(2(0.12)+0.33)
=0.013
Step-by-step explanation: