The concentration of the mixture made by mixing 6 fl. oz. of a 20% alcohol solution and 4 fl. oz. of a 5% alcohol solutions is 14%
What is an equation?An equation is an expression used to show the relationship between two or more numbers and variables.
Let x represent the concentration of the mixture, hence:
(6 * 20%) + (4 * 5%) = x * (4 + 6)
1.2 + 0.2 = 10x
x = 0.14 = 14%
The concentration of the mixture made by mixing 6 fl. oz. of a 20% alcohol solution and 4 fl. oz. of a 5% alcohol solutions is 14%
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Will Give Brainliest! And 5 stars
Solve for X
Answer:
x = 44
Step-by-step explanation:
These angles are supplementary so that means they add up to 180:
47 + 3x + 1 = 180
3x + 48 = 180
3x = 180 - 48
3x = 132
x = 44
can someone tell me if this is right or not?
Answer:
i think ur good
Step-by-step explanation:
Answer:
You right
Step-by-step explanation:
Which interval has the most students?
0-4
5-9
10-14
15-19
Answer:
0-4
Step-by-step explanation:
Craig won a first prize in Mrs. Taft’s class so he gets to pick a prize from the treasure box. He doesn’t know what he wants, so he is going to choose randomly. There are 7 different gift card prizes: Mcdonald’s, Cold Stone, Walmart, Target, Dollar Tree, Starbucks, and Dave and Busters. If there is an equal number of each card in the box, what is the probability he will pull out the gift card for Dave & Busters?
A) 1/7
B) 6/7
C) 1/2
D) 0/7
hiya answer this plz
7. An administrator surveys a random sample of 48 out of 900 middle school students. Using the
survey results, the administrator predicts that 225 students are in favor of the new dress code.
How many of the 48 students surveyed were in favor of the new dress code?
Answer:
12 students
Step-by-step explanation:
225 is 25% of 900 and 25% of 48 is 12.
The number of students is 12 that is surveyed were in favor of the new dress code the answer is 12.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
We have:
An administrator surveys a random sample of 48 out of 900 middle school students.
Using the survey results, the administrator predicts that 225 students are in favor of the new dress code.
The proportion of sample = 225/900
= 0.25
In percent sample:
= 0.25x100 %
= 25%
A number of students surveyed were in favor of the new dress code:
= 25% of 48
= (25x48)/100
= 1200/100
= 12
Thus, the number of students is 12 that is surveyed were in favor of the new dress code the answer is 12.
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What is the lateral surface area?
find the measure of angle b
Answer:
127
Step-by-step explanation:
Alt. Interior andgles are congruent
Answer: 127°
Step-by-step explanation:
The given 127° angle and b are alternate interior angles, so by the AIA (Alternate Interior Angles) Theorem, the angles are congruent. Therefore, m∠b = 127°.
the graph shows the solution to which system of inequalities?
Answer:
The orange one is the answer
Step-by-step explanation:
The easiest way to find the solution is to plug in one of the coordinates that is located in the shaded area into each equation. If the equations make sense, as they do in the orange option, you have your answer.
Hope this helps you!
Answer:
Step-by-step explanation:
I believe the first one
COuld someone plz help!!!!
Answer:
B I think ?
Step-by-step explanation:
because the median is not affected by outliers/extreme values
A little help? I'll be handing out Brainliest to the correct answer ^-^
The question is in the photo below. I've typed the answers here.
Which statements are true about each person’s work? Select the four correct answer choices.
A. Tanisha correctly simplified the power of a product in her first step by adding exponents.
B. Tanisha’s next step is to apply the power of a product.
C. Tanisha’s work is correct.
D. Neal’s next step is to apply the quotient of powers.
E. The correct simplified answer is x^8/3y^8.
F. Neal's work is correct.
PLEASEEEEEEEEEEEEEEE HELPPPP ME :))
Please help with “Product of Powers” And “quotient of powers”
What is 4x + 10 = -26
Answer:
x = -9
Step-by-step explanation:
I'm assuming you're looking for X.
So first, you'll want to subtract 10 from both sides of the equation.
4x + 10 = -26
- 10 | -10
4x = -36
Then from there, you'll want to divide by 4. This allows us to get x by itself.
4x = -36
/4 | /4
x = -9
The value of 'x' is -9 in the given equation.
To solve the equation 4x + 10 = -26, follow these steps:
Step 1: Isolate the variable term by subtracting 10 from both sides of the equation.
4x + 10 - 10 = -26 - 10
4x = -36
Step 2: Solve for 'x' by dividing both sides of the equation by 4.
4x / 4 = -36 / 4
x = -9
So, the value of 'x' is -9.
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Find the perimeter of the semicircular region. Round your answer to the nearest hundredth. 9 m The perimeter is about meters
Answer:
about 23.14 m.
Step-by-step explanation:
1/2(pi)(d). d=9.
so,
1/2(pi)(9)=4.5pim
then
4.5(pi)+9 is about 23.14m
will make brainlyest
Which expression is equivalent to 3−1/2+2 2/3−5/6?
A. 2 1/6−2 1/6
B. 5/6+2 1/6
C. 2 1/6+2 1/6
D. 2 1/6−5/6
Answer:
the answer is c
Step-by-step explanation: c
Aisha made a $2,000 deposit into an account that earns 3% annual compound interest for 2 years. What is the total amount in her account after 2 years?
plz help i gotta turn dis in now (no links)
Answer:
1.368 × 10^4
Step-by-step explanation:
i blink 38 times a muinet so i blink 2280 an hour so i blink 13680 every 16 hours
Can someone please help me find the measure of the exterior angle.
Answer:
X=128°
Step-by-step explanation:
Because an exterior angle of a triangle is equal to of the two opposite interior angle.
The sum of the exterior and interior angle is equal to 180°
In this case the part marked red = 90° because is a right angled triangle.
90+38=128
180- 128=52
180- 52=128
x=128.
Answer:
128 degrees.
Step-by-step explanation:
Simply add 38 degrees with 90 degrees.
(the square in the corner means 90 degrees)
hiya boys answer this for a chance to get a cookie
Answer:
∠4 = 102°
Step-by-step explanation:
∠4 = 180 - 78 = 102°
Answer:
The answer is 3 (112 Degrees).
Step-by-step explanation:
Search it up-
Wheres my cookie- :D
PLZ HELP!!! THIS IS TIMED!!!!!! PLZ HELP!!!!!!!!!!!!
Answer:
i think it is C
Step-by-step explanation:
Answer:
I'm pretty sure its B, I'm sorry if its wrong!
If a number becomes 2.5 times smaller, by what percent was it decreased?
Answer: 40%
Step-by-step explanation: 1 Divided by 2.5 is 0.4, or 40%.
The number decreased by 150%
What are percentages?A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate the percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word percent means per 100. It is represented by the symbol “%”
Given here a number becomes 2.5 times smaller than let the number be x then the value of the number the decrease is = x - 2.5x
= -1.5x
Thus the percentage decrease is = -1.5x/x × 100
= - 150%
Hence, The number decreased by 150%
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will mark brainliest expression 9(2j + 7 + 5j).
use mathematical properties to create two expressions that are equivalent to the expression you created in Question 1. Make sure you show all steps in your work.
Write the unit rate for 1400 words for every 4 pages.
Answer:
350 words per page
Step-by-step explanation:
1400 divided by 4= 350
Hope this helps!
A newly opened middle school’s enrollment is currently at 400 students. However, the school is implementing new programs and incentive systems to attract more students. They are projecting a 125% increase in enrollment for the upcoming school year.
How many students does the school project to have for the upcoming school year?
I DON'T need the answer, I need to know how you solved it, don't just look up the answer and say that.
500
Step-by-step explanation:
400 x 1.25 = 500 or just 400x0.25 +400
Answer:
900
Step-by-step explanation:
400x1.25=500
500+400=900
Pls help!
What measure of center best represents the data set?
Drag and drop the correct answer into the box.
Data Set
{37, 39, 38, 78, 36}
A) mean only
B) median only
C) mode only
D) mean or median
Answer:
the median only
Step-by-step explanation:
A square pyramid is shown.
What is the surface area of the square pyramid?
Answer:
I think C
Step-by-step explanation:
Answer:
your answer is 266.44 inches (D)
Step-by-step explanation:
Triangles:
6.1x7.6=46.36in
Each triangle is 46.36in
46.36x4=185.44in
Rectangle:
9x9=81in
The rectangle is 81in
All together:
185.44+81=266.44in
I hope this helps
have a nice day,
mark brainliest, please :)
I NEED HELP ASAP PLEASE HELP ME!! NO LINKS OR I WILL REPORT
Answer:
22
Step-by-step explanation:
im still using my calculator
Samantha leaves her house and drives 18 kilometers east to her friend's house. She then drives north to school. Finally, she drives 30 kilometers directly home, in a straight line, from school. A map of Samantha's route is provided below.
How far does Samantha drive traveling from her friend's house to the school?
A.
42 kilometers
B.
12 kilometers
C.
35 kilometers
D.
24 kilometers
Answer:
the answer is D) 35
Step-by-step explanation:
use the formula b²×h²
The distance travelled by Samantha from her friend's home to school will be 24 KM
What is pythagoraean theorem?The Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the square of the other two sides.
Here Samantha is travelling in a right-angled triangular path so the distance between Samantha's school and her friend's home will be calculated as:-
H² = P²+B²
(30)² = x²+(18)²
x²= 900-324=576
x=√576
x=24 KM
Hence the distance travelled by Samantha from her friend's home to school will be 24 KM
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Ms. Cathy bought a package of pencils. Out of every 10 pencils, 5 are black. If there are 20 pencils in the pack, what fraction of the pencils in the pack are black? What percent of the pencils
in the pack are black?
Plzz help me
Answer:
there are 10 black pensoles
Step-by-step explanation:
Answer:
Fraction: 24/30 Percentage: 80%
Step-by-step explanation:
It might want a simplified version of the fraction, so the answer for that one could be 4/5. I hope this helps :)