Answer:
178
Step-by-step explanation:
200*11%
200*.11
22 employees will leave
200-22 = 178 left
I need help please!!
The circumference of a circle is 7π m. What is the area, in square meters? Express your answer in terms of \piπ.
Answer:
A ≈ 3.9
Step-by-step explanation:
How to solve
Using the formulasA=πr2
C=2πr
Solving for AA=C2
4π=72
4·π ≈ 3.8993
Therefore, the circle in square meters in the nearest tenths is A ≈ 3.9
A chemist has three different acid solutions. The first acid solution contains 20 % acid, the second contains 40 % and the third contains 70 % . They want to use all three solutions to obtain a mixture of 56 liters containing 50 % acid, using 2 times as much of the 70 % solution as the 40 % solution. How many liters of each solution should be used?
Answer:
The volume of the first acid solution (containing 20% acid) in the mixture is 14 liters
The volume of the second acid solution (containing 40% acid) in the mixture is 14 liters
The volume of the third acid solution (containing 70% acid) in the mixture is 28 liters
Step-by-step explanation:
The percentage of acid in the first acid solution = 20%
The percentage of acid in the second acid solution = 40%
The percentage of acid in the third acid solution = 70%
The volume they want to use the three solutions to obtain a mixture of = 56 liters
The concentration of the mixture they want to obtain = 50%
The amount of the 70% solution to be used = 2 × The volume of the 40% solution to be included
Let 'x', 'y', and 'z', represent the volumes of the first second and third acid solutions in the mixture
Therefore, from the question parameters, we get;
x + y + z = 56...(1)
z = 2·y...(2)
0.2·x + 0.4·y + 0.7·z = 0.5 × 56...(3)
Multiplying equation (3) by 10 and then subtracting equation (1) multiplied by 2 from the result gives;
10 × (0.2·x + 0.4·y + 0.7·z = 0.5 × 56) = 2·x + 4·y + 7·z = 5 × 56 = 280
2·x - 2·x + 4·y - 2·y + 7·z - 2·y = 280 - 2 × 56 = 168
2·y + 5·z = 168
From equation (2) and (4), we get;
2·y + 5·z = 2·y + 5×(2·y) = 168
12·y = 168
y = 168/12 = 14
The volume of the second acid solution in the mixture, y = 14 liters
From equation (2), we have;
z = 2·y
∴ z = 2 × 14 = 28
The volume of the third acid solution in the mixture, z = 28 liters
From equation (1), we get;
x + y + z = 56
x = 56 - (y + z)
∴ x = 56 - (14 + 28) = 14
The volume of the first acid solution in the mixture, x = 14 liters.
PLEASE HELP I DONT UNDERSTAND
Answer:
I am pretty sure its 5
Step-by-step explanation:
Which expression will give the closest approximation to the square root of 156?
Answer:
C
Step-by-step explanation:
Took the assignment before
Ashley plans to run a total of 24 miles this week. If Ashley has already run 25% of the total distance, how many more miles does she plan to run this week?
A. 6 miles
B. 20 miles
C. 4 miles
D. 18 miles
Answer:
D.18 millas
Step-by-step explanation:
dividimos el 24 en cuatro partes que terminaria en 6 restamos 6-24 = 18 millas que seria el 75%
Which of the following terms correctly describe the object below? Check all that apply.
A. Cube B. Polyhedron C. Prism D. Solid E. Pyramid F. Polygon
Answer:
solid shape
Step-by-step explanation:
1/8 + 9/40 as a fraction in simplest form
Answer:
7/20
Step-by-step explanation:
9/40, 9 divided by 40 is 0.225. 1/8, 1 divided by 8 is 0.125. Add 0.225 and 0.125 you get 0.35. 35% (0.35) of 100 to a fraction is 7/20. 7 divided by 2 is 3.5 or 0.35, 20 divided by 2 is 10 or 1. So yeah. Hope This Helps :)
Write 2x - x2 = 1 in standard form.
Answer:
3.45782 x 10^4
Step-by-step explanation:
The question is : The firehouse is shown in the shape of a composite figure, how many cubic yards of space are in the fire house?
Answer:
Step-by-step explanation:
c
what would this be please?
Answer:
I know the drawing is not cool :), But it is right
Step-by-step explanation:
I hope that is useful for you :)
The mean of five numbers is 25. If one of the numbers is excluded, the mean gets reduced by 3. What is the value of the excluded number? [1 point]
Identify all integers greater than -12.
Answer:
-11, -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, ect
Step-by-step explanation:
an integer is a whole number that is not a fraction, it can be positive or negative
can someone please help me with my math, im wasting alot of points and im getting either no answers, links, or ppl just wanting points. please help, ill give etrax points, but only if you help with ALL of them
Answer:
Sure what are the questions?
Step-by-step explanation:
Trusted helper Ace Carlos
Answer:
you didnt put any questions.
Step-by-step explanation:
please help! i'll give brainliest! no one would help me PLEASE.
Answer:
m∠ABC = 42°
Step-by-step explanation:
5x + 13 + 3x + 33 = 70
8x + 46 = 70
8x = 24
x = 3
m∠ABC = 3(3) + 33 = 42
Can someone please help me
Answer:
Point Form:
(-3, -5)
Equation Form:
x = -3, y = -5
Step-by-step explanation:
Hope This Helps! : )
Find the equation parallel to y = -x - 5 and passing through (-3, -3)
Answer:
y = -x - 6
Step-by-step explanation:
If it's parallel, then it means that the slope will remain the same. The slope is
-1.
To find the y-intercept, you need to plug the coordinates into the equation,
y = -1x + b
-3 = -1(-3) + b
-3 = 3 +b
-6 = b
The equation is y = -x - 6
Hey can you help me fast!!!
Answer:
32 squared ft
Step-by-step explanation:
Can u help me guys this is hard
Write all the factors for 64?
Answer:
1, 2, 4, 8, 16, 32, 64
Step-by-step explanation:
1, 2, 4, 8, 16, 32, 64
who knows the answer to this ?
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
If you divide each answer choice and then you divide the equation then you would know that both D and the normal problem equals 3.5.
Suppose your SAT score is 1180. You look up the average SAT scores for
students admitted to your preferred colleges and find the list of scores below.
Based on your SAT score of 1180, which average score below represents the
college that would be your best option?
Do you have the options for this?
The measure of ZPQS is 180°. The measure of ZRQS is 30°.
R
30°
P
S
What is the measure of ZPQR?
A. 60°
B. 120°
C, 150°
D. 210°
What's the answer to this?
Answer:
1.5
Step-by-step explanation:
-1.5 + 1.5 will get you to 0
-1.5 + (-1.5) will get you -3. The other options are out of the question
Which of the following is closest to the circumference, in inches, of a circle that has a diameter of 12 inches?
Answer:
37.68 inches
Step-by-step explanation:
The formula for the circumference of a circle is 2πr.
The radius is 6, and 6⋅2 = 12 (diameter).
3.14 = pi.
12 ⋅ 3.14 = 37.68
Whichever answer is closest to 37.68 is your answer!
Simplify the following expression. 3x ^ 4 + 2x ^ 3 - 5x ^ 2 + 4x ^ 2 + 6x - 2x - 3x ^ 4 + 7x ^ 5 - 3x ^ 3
Answer:
[tex]7x ^ 5 - x ^ 3- x ^ 2 + 4x[/tex]
Step-by-step explanation:
1) [tex]3x ^ 4 + 2x ^ 3 - 5x ^ 2 + 4x ^ 2 + 6x - 2x - 3x ^ 4 + 7x ^ 5 - 3x ^ 3[/tex]
Rearrange the expression.
2) [tex]7x ^ 5+3x ^ 4- 3x ^ 4 + 2x ^ 3 - 3x ^ 3- 5x ^ 2 + 4x ^ 2 + 6x - 2x[/tex]
Solve.
3) [tex]7x ^ 5 - x ^ 3- x ^ 2 + 4x[/tex]
What is the solution to the inequality (21+5) >1?
Answer:
True
Step-by-step explanation:
(21+5) >1
Simplify 21+5
26>1
Therefore the solution is
True
Helped by none other than the #Queen herself #DRIPPQUEENMO
What is the midpoint of the segment shown below?
Answer:
option c is the correct answer
Lions and cheetahs prey on wildebeests that graze in the grasslands of the African savanna. What likely effect would increased rainfall over
several rainy seasons have on the populations of wildebeests, lions, and cheetahs?
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Answer:
..
........................
Answer:
Step-by-step explanation:
All three populations would increase. The wildebeest population would decrease, and the lion and cheetah populations would increase.
if the line M is perpendicular to the line end, and the slope of line M is -3 / 2, what is the slope of line and? Write the slope in simplest form
(easy question, easy points)
Answer:
2/3
Step-by-step explanation:
All you do is find the reciprocal,
you take the equation, flip, then change the sign of the numerator. so,
In this it's already done, the sign on top is already changed and so is the equation fliped so we do the opposite,
which would give you 2/3 because the perpendicular line of 2/3 is -3/2 which makes them perpendicular to each other and there is your answer.