Answers
Answer: C
Step-by-step explanation:
Related Questions
A chemist has 100 ml of 25% acid solution. how much of the solution does she need to drain and replace with 70% acid solution to obtain 100 ml of 60% acid solution?
Answers
Answer:
The proportion of acid at 70% that the chemist must use will be 77.8%, while the remaining 22.2% will be acid at 25%.
Step-by-step explanation:
Since the chemist has 100 ml of solution with 25% acid, and wants to obtain a solution of 60% acid by mixing the first with another 70% acid solution, to determine how much of each solution the chemical should use necessary to perform the following calculation:
70 x 1 + 25 x 0 = 70
70 x 0.9 + 25 x 0.1 = 65.5
70 x 0.8 + 25 x 0.2 = 61
70 x 0.7 + 25 x 0.3 = 56.5
Therefore, the proportion to be used is between 70% and 80% of acid at 70%, and 20% to 30% of acid at 25%.
70 x 0.75 + 25 x 0.25 = 58.75
70 x 0.76 + 25 x 0.24 = 59.2
70 x 0.77 + 25 x 0.23 = 59.65
70 x 0.78 + 25 x 0.22 = 60.1
Thus, the proportion should be between 77 and 78% of acid at 70% and 22 and 23% of acid at 25%.
70 x 0.778 + 25 x 0.222 = 60.01
Thus, finally, the proportion of acid at 70% that the chemist must use will be 77.8%, while the remaining 22.2% will be acid at 25%.
question is in png pls some1 help.
Answers
Answer:
They r both 60°
Step-by-step explanation:
By the transversal lines law x=y
And by the parallelograms law x=60°
I hope I helped pls give me brainliest
What is the area in square feet 6.ft, 8ft
Answers
Answer:
48 Squared Feet
Step-by-step explanation:
6 * 8 = 48
Answer:
48ft2
Step-by-step explanation:
6ft x 8ft = 48ft2
Answer - 48ft2
Really need help with this problem?
Answers
Answer:
6,400
Step-by-step explanation:
I finished I-Ready I dont do it anymore its easy
Don't understand please help
Answers
Find 4/5% of $75,000.
Answers
Answer:
60,000
Step-by-step explanation:
Answer:
3375
Step-by-step explanation:
Approximately how many times greater is 374,000 than 22,000?
Answers
Answer:
352,000
Step-by-step explanation:
Subtract 374,000 by 22,000 and you will get 352,000 as your answer
The number 374000 is greater then 22000 by exactly 25200 amount.
What is mathematic expression?
A mathematical expression is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Here, to find out by how much times the number 374000 is greater then the number 22000 we simply subtract the number 374000 by 22000 which comes out be 35200.
It should be noted that, To cross verify the answer we can add 35200 with 22000 it must be equal to 374000.
374000 - 22000 = 352000
Therefore, the number 374000 is greater then 22000 by exactly 25200 amount.
Read more about addition here :
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If Michael and Imani add an 18% tip to the bill, what does their lunch cost in total? Enter your answer in the box.
Answers
Answer:
$35.22
Step-by-step explanation:
The bill would be $29.85, and the total would be $35.22
Answer:
part A is $32.24 NOt sure what part B is yet
Step-by-step explanation:
Fine the values of x and y. Please explain .
Answers
Anyone know- I need help.
Answers
Answer: 5on x axis 2 on the y axis
Answer:
The answer would be (5,2)
:D Have a Great Day :D
i need the awnser ASAP plz!!
Answers
Answer:
it is D
Step-by-step explanation:
the ratio is 1.5 so multiply 15 by 1.5
An airplane on autopilot took 9 hours to travel 6399 kilometers. What is the unit rate for kilometers per hour?
Answers
Answer:
6399/9=711 The answer to this question is 711.
What is the value of the expression when m=x+1?
A
3(x−4)
B
3(x−6)
C
3(x−5)+1
D
3(x+5)+1
Answers
Answer:
Its E im pretty sure 69
Step-by-step explanation:
nice
if Scott types 210 words in 5 minutes how many words can he type in a minute
Answers
Answer:
42
Step-by-step explanation:
210 divided by 5 is 42
Use synthetic division to determine f(-2) for the function f (x) = 9x^3 - 18x^2 - 16x + 32
Answers
Answer: -80
Step-by-step explanation:
PLEASE HELP MEEEEE FASTTT
Answers
Answer:
-63
Step-by-step explanation:
PEMDAS stands for:
P -> Parentheses
E -> Exponents
M -> Multiplication (left to right)
D -> Division (left to right)
A -> Addition (left to right)
S -> Subtraction (left to right)
So in this problem, we can't evaluate the parentheses unless we evaluate the exponent first:
(-25+4^2)*7
(-25+16)*7
Next, we evaluate the parentheses by adding from left to right since there's no multiplication or division in the parentheses:
(-25+16)*7
(-9)*7
Lastly, we do multiplication:
(-9)*7
-63
Thus, our final answer is -63
9 out of 36 students wear glasses what percent of students wear glasses
Answers
Answer:
25%
Step-by-step explanation:
9 out of 36 is equal to 9/36, which equals 1/4.
1/4 is a quarter of a whole. a quarter is 25%
25%
9/36 = 1/4 = 0.25 = 25%
Could someone help me on this math question !
Answers
1. Combine like terms in 2 + x + 3y + 4x + 2y + 5.
2. Combine like terms in 2x + 3xy + 4 + 5yx.
please due in 5 minutes please
Answers
Answer:
Detailed step by step solutions to your Combining like terms problems online with our math solver and calculator. Solved exercises of Combining like terms. Calculators Topics Solving Methods Go Premium. ... $-2+9y-4x-2y-3x$ 3. Combining like terms $9y$ and $-2y$ $-2+7y-4x-3x$ 4. Combining like terms $-4x$ and $-3x$ $-2+7y-7x$ Final Answer $-2 ...
Step-by-step explanation:
Number 2 is =2(x+4xy+2)
What is the probability that the highest level of education of an adult is a high school diploma, given that they have completed at least one of the education levels shown?
A. 0.04
B. 0.16
C. 0.47
D. 0.84
Answers
Answer:
Probability = 0.04 (Approx)
Step-by-step explanation:
Given:
High school diploma = 0.03
Total holder = 0.03+0.44+0.26+0.11 = 0.84
Find:
Probability
Computation:
Probability = 0.03 / 0.84
Probability = 0.0357
Probability = 0.04 (Approx)
select the correct answer
Answers
Answer:
b
Step-by-step explanation:
cause i say so.
heeeeeeeeeeeeellllllllllllpppppppppppppp please and thank you hehe :]
Answers
Answer:
Mean is 8 MAD is 4.29
Step-by-step explanation:
HELP^^^ ITS 7TH GRADE MATH
Answers
Answer:
13
Step-by-step explanation:
count outside lines
Answer:
Perimeter: 13
PLZ HELP TROLL ANSWERS GET REPORTED MAKE IT UNDERSTANDABLE Match each expression to its value.
Answers
Answer:
7-5 => 2-7+5 => -2-7-5 => -127-(-5) => 12Step-by-step explanation:
Lets solve the expressions one by one
1. 7-5
we can see that it is simple subtraction. A smaller number is being subtracted from a large number.
So the answer is 2
2. -7+5
There are two numbers with different signs. When there is a number with plus and a number with minus both quantities are subtracted but the larger quantity determines the sign of the answer.
In this case, 7 is larger and has negative sign, the answer will be -2
3. -7-5
When there are two numbers with minus sign they are added but the answer has the minus sign with it.
So the answer will be: -12
4. 7-(-5)
When minus is multiplied with minus it converts to positive
So
[tex]= 7-(-5) = 7+5 = 12[/tex]
Hence,
7-5 => 2-7+5 => -2-7-5 => -127-(-5) => 12Three apples (x) plus two
oranges (y) costs $16.
Five apples plus two
oranges costs $24. Hov
muon do each apples and
oranges cost?
Answers
Ricardo ran the 60-meter sprint in 5 seconds. Which best represents Ricardo’s rate in meters per second?
Answers
Answer:
1.8 or less
Step-by-step explanation:
girls 1.8 or less
Ricardo’s rate in meters per second is equivalent to 12 meters per second.
What is rate of change?Rate is defined as the rate of change of one variable with respect to other variable.{r} = dy/dx
In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that Ricardo ran the 60-meter sprint in 5 s.
Ricardo’s rate in meters per second
r = d/t
r = 60/5
r = 12
Therefore, Ricardo’s rate in meters per second is equivalent to 12 meters per second.
To solve more questions on expression evaluation, visit the link below -
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2y=2x+6
Solve for y
Answers
Answer:
y=x+3
Step-by-step explanation:
Answer:
y = x + 3
Step-by-step explanation:
Divide each term by 2 and simplify.
nora has 3/4 as many books as victor. let v represent the number of books victor has. create an expression to represent the number of books nora has. create an expression to represent the number of books nora has
Answers
Answer:
N = [tex]\frac{3}{4}[/tex] * v
Step-by-step explanation:
Since the value that we are provided is a fraction that is tied to the number of books that Victor has, we would simply need to multiply this fraction by the total number of books that Victor has. This value is represented by the variable v while the total number of books that Nora has is represented by the variable N. Therefore, the expression would be the following
N = [tex]\frac{3}{4}[/tex] * v
PLS HELPPPPP!!!!!!!!!!!!!!!!!!
what is 2/5 times 11 in simplest form?
Answers
Answer:
4.4 would you let me know if you need an explanation and pls don't delete.
Hmmmm i think its 5/22
Step-by-step explanation:
So basically how i got it was 2/5*11
And that got me 5/22
I do not think you could simplify this
Either I'm very smooth brain or you can't simplify 5/22
The 6th grade took a field trip to the movies. The
table shows the price of popcorn based on the
quantity purchased. How much would it cost for
20 bags of popcorn?
Answers
Answer: 60
Step-by-step explanation: