How much pure water must be mixed with 10 liters of a 25% acid solution to reduce it to a 10% acid solution? 11 L 15 L 25 L
Answers
10 L of a 25% acid solution contains 0.25 * (10 L) = 2.5 L of acid.
Adding x L of pure water dilutes the solution to a concentration of 10%, such that
(2.5 L)/(10 L + x L) = 0.10
Solve for x :
2.5 = 0.10 * (10 + x)
2.5 = 1 + 0.10x
1.5 = 0.10x
15 = x
so 15 L of pure water are needed.
Related Questions
4t + 1/4=3 first answer will get brainliest
Answers
Answer:
t=11/16
Step-by-step explanation:
4t+1/4=3
-1/4 -1/4
4t=2 3/4
t=11/16
Answer:
Step-by-step explanation:
4t+1/4=3
We move all terms to the left:
4t+1/4-(3)=0
determiningTheFunctionDomain
4t-3+1/4=0
We multiply all the terms by the denominator
4t*4+1-3*4=0
We add all the numbers together, and all the variables
4t*4-11=0
Wy multiply elements
16t-11=0
We move all terms containing t to the left, all other terms to the right
16t=11
t=11/16
t=11/16
Chart and Graph Questions (image inserted)
Answers
X is the horizontal line and y is the vertical one- so (1,3) you would move one horizontally (right) and 3 vertically (up)
Answer:
X is the horizontal line and y is the vertical one- so (1,3) you would move one horizontally (right) and 3 vertically (up)
Please help and thank you. I forgot the formulas sorry.
Use a net to find the surface area. The area of the right triangular prism is [blank] cm2.
Answers
Answer: The answer is 255 cm2
Step-by-step explanation:
So we are looking for the area of the right triangular prism. We first must start of by observing the lengths of each side. Once you have found out what is what multiply in order. First 12 x 5 = 60. Then multiply 13 x 15 which equals = 195. Finally you want to ad up the sums together to get 255 cm2.
To find more questions by me, click on my profile to view everyone I have helped. I hoped this could help you and have a fantastic day and grade : )
FAST PLEASE
he volume of a rectangular prism is 128 cubic centimeters. The area of the base of the prism is 8 square centimeters. What is the height of the prism? The height of the prism is cm.
Answers
Answer:
16 cm
Step-by-step explanation:
V= 128 cm³
b= 8 cm²
V= bh
h= V/b= 128/8= 16 cm
Answer:
height=16 cmsolution
\(let \: height \: be \: h \: cm \\ volume \: of \: rectangular \: prism \\ = > \: \: 128 = l \times b \times h \\ area \: of \: base = l \times b \\ = > 8 = l \times b \\ now \\ 128 = 8 \times h \\ \\ or \: h = \frac{128}{8} \\ h = 16 \: cm\)
hope this helps....
Need Help fast!!!
Please!
Answers
Answer:
the third one
Step-by-step explanation:
because on the first paper the food coloring was always twice as much as the frosting and 100 is two times larger than 50.
Using a directrix of y = −2 and a focus of (2, 6), what quadratic function is created?
here are the answers given
\/
f(x) = −one eighth (x − 2)2 − 2
f(x) = one sixteenth (x − 2)2 + 2
f(x) = one eighth (x − 2)2 − 2
f(x) = −one sixteenth (x + 2)2 − 2
Answers
Answer:
f(x)=1/16(x-2)^2+2
Step-by-step explanation:
The Equation can be written like this:
f(x) = 1/(4p)(x -h)^2 +(k-p)
where (h, k) is the focus, and p is half the distance between focus and directrix. Here, (h, k) = (2, 6) and p=(6-(-2))/2 = 4. So the equation is ...
f(x) = 1/16(x -2)^2 +2
suppose 3/5 of students at your school were going to the football game.How many students would you have to randomly select in order 25 students who were going to the dance?
Answers
Answer:8
Step-by-step explanation:
3x8 = 24 + 1= 25
need help due wednesday will give brainliest for correct answer
Answers
Answer:
the answer is d
Step-by-step explanation:
the power can't be a negative if it's a speed
and it is km/hr
i need help with this question please help me
Answers
Answer:
The answer is D.
Step-by-step explanation:
y = mx + b
C = 5/9 (F - 32)
C = 5/9F - 5/9 (32)
Option (D) is correct.
whats the answer to 3+2h=7
Answers
Greetings! Hope this helps!
Answer
3 + 2h = 7
-3 -3
2h = 4
/2 /2
h = 2
Have a good day!
_______________
A brainliest would help tons! :D
Estimate the solutions to the system. (The math problem and the answer choices are along with the pictures below)!!!!
Answers
Answer:
b (-6.5, 6.5), (6, -3)
Step-by-step explanation:
The Solutions are the points of intersection by the circle and the line. We can clearly tell that the point in quadrent four or bottem right intersects at 6, -3 and we can guess the top intersection. But because we know 6, -3 there is only one answer that can be right, b.
ASAP PLS I NEED IT AND TY
Answers
When we're solving with scale factors, we either divide or multiply.
If the shape becomes larger, we multiply to get the new length.
If the shape becomes smaller, we divide to get the new length.
Solving the QuestionWe're given:
Original side length is 2.5 unitsScale factor = 6Because the shape becomes larger, we have to multiply the original side length by the scale factor, 6, to get the new side length.
2.5 x 6 = 15
Therefore, the missing side length is 15 units.
Answer15 units
Answer:
6
Step-by-step explanation:
Which of these is an example of random sampling?
A.
A few fans asked the host to play their favorite song.
B.
Seven people from the first row are randomly selected and asked whether they are enjoying the event.
C.
Four people are randomly selected from the crowd to perform in an event.
D.
The event manager picked a person from the last row to help host the event.
Answers
Answer:
C.
Four people are randomly selected from the crowd to perform in an event.
Step-by-step explanation:
An example of a simple random sample would be the names of 25 employees being chosen out of a hat from a company of 250 employees. In this case, the population is all 250 employees, and the sample is random because each employee has an equal chance of being chosen.
Write your answer as either a whole number, a reduced improper fraction, or a decimal rounded to the hundredths place.
Answers
Answer:
x=15/8; x ≈ 1.88
Step-by-step explanation:
cross products
15=8x
Divide both sides by 8
x = 1.875 = 15/8
x ≈ 1.88
Find a common numerator like 45
8*5=45
5*8=45
Now do the same to the known top numbers
3*5=15
So now we have 15/40 and if we divide both the top and bottom number by 8 we get our answer
Suppose Andrew slept for eight hours one night. The ratio of hours he slept before midnight to after midnight is 1:11. How long did Andrew sleep before midnight?
Answers
Answer:
kugouyvbkhjvh k nnbnb
Step-by-step explanation:
HHHHHHHHHHHEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLPPPPPPPPPP
25 POINTS AND BRAINLIEST
Directions: Evaluate and solve for the variable and graph the resulting solution set, showing ALL work.
a) x/4 > 10
b) -5g < 15
c) t - 4 ≤ -3
d) 4d > -12
e) u + 12 ≤ 5
f) j - 4 ≥ - 4
Answers
Answer:
a) x/4 > 10
x > 10*4
x > 40
--------------------------
b)-5g < 15
g > 15/-5
g > -3
--------------------------
c) t - 4 ≤ -3
t ≤ -3 + 4
t ≤ 1
--------------------------
d)4d > -12
d > -12/4
d > -3
--------------------------
e)u + 12 ≤ 5
u ≤ 5 -12
u ≤ -7
-------------------------
f)j - 4 ≥ - 4
j ≥ -4 + 4
j ≥ 0
Answer:a) x/4 > 10
x > 10*4
x > 40
--------------------------
b)-5g < 15
g > 15/-5
g > -3
--------------------------
c) t - 4 ≤ -3
t ≤ -3 + 4
t ≤ 1
--------------------------
d)4d > -12
d > -12/4
d > -3
--------------------------
e)u + 12 ≤ 5
u ≤ 5 -12
u ≤ -7
-------------------------
f)j - 4 ≥ - 4
j ≥ -4 + 4
j ≥ 0
Step-by-step explanation:
ASAP some answer this ASAP
Answers
Answer:
(-3, 7)
Step-by-step explanation:
minus the x value by 2, minus the y value 3, rule for reflection over line y=-x is (-x, -y), so just swap the signs, and thats your answer.
Which of these number sentences is not true
A) 4,000,000 mm = 4k
B) 300 mm > 3 cm
C) 5 m > 5,000 mm
D) 2,000 m > 20 km
Answers
Answer:
Answer D: 2000m>20km :)
6.7 more than the quantity x divided by 2.1 is greater than or equal to b.
How is this word sentence written as an algebraic inequality?
Answers
Answer:
6.7 + x/2.7 ≥ b
Step-by-step explanation:
(6.7) (more) (than the quantity x divided by 2.1) (is greater than or equal to) (b)
6.7 + x / 2.1 ≥ b
6.7 + x/2.7 ≥ b
Answer:what is the anwser
Step-by-step explanation:
Explain the pattern that you notice when dividing by 10,100 and 1,000
Pls do NOT do this : ajndauidnsauanan in answer place
And pls do NOT put FILES in answer place.
Tysm
Answers
Answer:
Step-by-step explanation:
An easier way to do this type of problem, is to break it down,
10,000/1,000 is the BIG SCARY Problem, think of it like 10/1,\
1 goes into 10, 10 times,
So, what is 1,000x10?
10,000
Answer, 10
Pattern, is that is decreases by 1,000 every time and now you know
pls help meh
Which angle refers to the same angle as \angle BPF∠BPFangle, B, P, F?
Answers
We have: ∠APC + ∠BPC = 180⁰ (adjacent corner)
=> ∠APC + 133⁰ = 180⁰
=> ∠APC = 180⁰ - 133⁰ = 47⁰
Beside: x = ∠BPD = ∠APC = 47⁰ (opposite corner)
ANSWER: x = 47⁰
Ok done. Thank to me :3
The value of the angle x will be equal to 47⁰.
What is an angle?The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.
It is given that ∠APC + ∠BPC = 180⁰ (adjacent corner)
The angle x will be calculated as below:-
=> ∠APC + 133⁰ = 180⁰
=> ∠APC = 180⁰ - 133⁰ = 47⁰
Beside: x = ∠BPD = ∠APC = 47⁰ (opposite corner)
Therefore, the value of the angle x will be equal to 47⁰.
To know more about angles follow
https://brainly.com/question/25716982
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HELP ME WITH THIS MATH ...................................
Answers
Answer:
The answer is B: -5
Explanation:
Look at the Y line and see where the line intersects with the Y line at -5
Answer:
-5 because -5 is the Y intercept
I NEED HELP ASSAP PLEASE
(Math)
Answers
Answer:
A h= 12m
Step-by-step explanation:
A= Base 9
B= Base 16
C= Area 150
\(A= \frac{a+b}{2} h \\h= 2\frac{A}{a+b} = 2\frac{150}{9+16} = 12m\)·
Answer:
The height will be 12 meters
Step-by-step explanation:
150=9+16/2
H=150x2/25
H=12
Which numbers are integers?Check all that apply.
15
-9
Two-thirds
6 and StartFraction 1 Over 9 EndFraction
0
-3,128
4.76
pls help
Answers
Answer:15, -9, 0,
Step-by-step explanation:
A line on a graph is represented with the equation y= -3x-9. What is the equation for the image of this line after a reflection over the mirror line y=x ?
Answers
Answer:
O y=-1/3x-3 is the answer i think
arrange the numbers in order from greatest to least , square 150, 11 4/9. 4pi.
PLS ANSWER IVE BEEN STRUGGLING :(
Answers
Answer:
see below
Step-by-step explanation:
In order
4π ≈ 12.57
√150 ≈ 5√6 ≈ 12.25
11 4/9 ≈ 11.44
note: pi is written as "π''
Stanley bought a rectangular piece of land to build an amusement park. He is going to call his amusement park “Canada’s Stanley Land”. It will feature the world’s fastest rollercoaster with a drop of 90 degrees. The entire area of his land is 720 km2. The length of the land is 5 times the width of the land. It will cost Stanley $96,000,000,000 to build all the rides in his dream amusement park. What is the length and width of the piece of land that Stanley bought to build his amusement park?
Answers
Answer:
300 by 60
Step-by-step explanation:
because I am big brain and totaly didn't use a calculator
Which fraction from problem 2 is greater than 1 1/2? Explain how you know. Can you please also answer both of the questions
Answers
B. 1/3, 12/15, 3/10, 2/5
C. 3/3
2. 16/10 that is because it would simplify to 1 6/10 which is over 1 5/10 which is 1 1/2 unsimplified
What is the value of the expression shown?
|7|
A) –7
B) 7
C) – 1/7
D) 1/7
Answers
Dani's estimate for the cost of tiling her bathroom floor is $50 plus $3 per square foot. Write a linear equation showing the total cost.
Include in Your Answer:
The linear equation written in y=mx + b format.
1 to 2 sentences explaining how you determine the correct linear equation.
Answers
Answer:
The linear equation showing the total cost of tiling Dani's bathroom floor is: y = 3x + 50
The equation is in the form of "y = mx + b", where y represents the total cost, x represents the number of square feet, m represents the cost per square foot ($3), and b represents the fixed cost ($50). The linear equation is determined by using the information provided in the problem, which is the cost per square foot and the fixed cost.
Step-by-step explanation: