Answer:
As
parts per million can be calculated by applying formula Ppm=(mass of solute/mass of solution)×1,000,000
In given condition
Mass of solute which is NaCl is 284g
Mass of solution which is watervis 100g
Ppm=284/100×1,000,000
=284000ppm
I hope it's helpful!
Answer: 284,000 ppm
Step-by-step explanation:
___ + 142 + 308 = 450
Answer:
it would be 0 cause 142 and 308 already equal 450
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
450 - (142 + 308) = 0. ) is the answer.
Hope it helps!
(-a - b)x = 3a +3b.
Given:
The equation is
[tex](-a-b)x=3a+3b[/tex]
To find:
The value of x.
Solution:
We have,
[tex](-a-b)x=3a+3b[/tex]
It can be written as
[tex]x=\dfrac{3a+3b}{(-a-b)}[/tex]
[tex]x=\dfrac{3(a+b)}{-(a+b)}[/tex]
Cancel out the common factors.
[tex]x=\dfrac{3}{-1}[/tex]
[tex]x=-3[/tex]
Therefore, the value of x is -3.
Someone please help me! I need help with these 6 questions please!!
[tex]x^{2}-8x+16=25[/tex]
Answer:
x = 9 ; -1
Step-by-step explanation:
[tex]x {}^{2} - 8x + 16 = 25 \\ x {}^{2} - 8x + 16 - 25 = 0 \\ {x}^{2} - 8x - 9 = 0 \\ (x + 1)(x - 9) = 0 \\ x = - 1 \\ x = 9[/tex]
I need help please it will be really helpful!
Answer:
yes sir burrito
Step-by-step explanation:
question 2 on plato geometry 2 70 points
To explore relationships among the sides and angles, move points B and C so that m∠CFB equals 45°, 50°, 60°, and 75°, successively. Measure the values listed in the tables to two decimal places. (It’s acceptable if the radius of the circle changes as you move B and C.)
picture below
Answer:
m∠CFB m∠CAB m∠EAD m ∠CAB + m∠EAD
45° 19.93° 70.07° 90°
50° 29.91° 70.09° 100°
60° 49.92° 70.08° 120°
75° 79.92° 70.08° 150°
m∠CFB BF CF DF EF BF + DF CF + EF BF × DF CF × EF
45° 2.69 2.74 9.09 8.91 11.78 11.65 24.45 24.41
50° 3.7 3.63 8.07 8.23 11.77 11.86 29.86 29.87
60° 5.35 4.72 6.42 7.28 11.77 12.00 34.35 34.36
75° 7.3 5 4.47 6.52 11.77 11.52 32.63 32.6
Step-by-step explanation:
edmentum
Answer:
PLATO
Step-by-step explanation:
There are 60 animals on display at the zoo 12% of these animals are reptiles how many of the animals are reptiles how many are not reptiles
PLEASE HELP FOR QUESTION 4 I WILL MARK BRAINLIST READ IT CAREFULLY
hey let me tell you this you just never helped me and cheating is not good so yeah treat people the way you want to be treated and I saw your answers to other people it's not good to cheat just a piece of advice
Solve: -3+ h = 40
HELPPP
Answer:
answer: c, 43
Step-by-step explanation:
-3+h=40
+3 +3 add 3 to both sides
h=43
Answer:
Its c
Step-by-step explanation:-3 + h = 40 cause 43 -3 is 40
I need help with geometry
Answer:
x = 31, y = 53, z = 96
Step-by-step explanation:
i got this question ina test so yea
50% to 36.75 what is the original price
Answer: 73.50
Step-by-step explanation:
I am assuming that the new price is 36.75
50% is 1/2
36.75·2=original price
original price=73.50
Help on this math problem pls!
Answer:
y=5
Step-by-step explanation:
x+3=2x+1
x=2
y=2+3
y=5
In basketball, each shot made is worth 1, 2, or 3 points. Miles scored a total of 27 points in his most recent game. He made three 1-point shots
and four 3-point shots.
How many 2-point shots did he make?
Answer:6
Step-by-step explanation:
Subtract the three 1 point shots
Subtract the four 3 point shots
You are left with 12, and you split that in 2 because they're 2 point shots.
What is the area of the triangle in the diagram?
Answer:no idea mate sorry
Step-by-step explanation:
Solve the system by substitution.
-2x-10y=-2
-4y=x
maybe xd ad something else please
solving equation with integers add/sub
Find the slope and the y intercept of the chart
[tex]\frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]
[tex]\frac{1 - 4}{0 + 1}[/tex]
[tex]\frac{-3}{1}[/tex]
the slope is -3
y intercept is 1
y = -3x + 1
hope this helped :))
Which two ratios represent quantities that are proportional?
Answer:
D. 45/18 = 35/14Step-by-step explanation:
Lets simplify the ratios where possible and compare:
A. 3/4 = 9/12 ≠ 5/12B. 32/20 = 16/10 ≠ 22/10C. 7/5 = 14/10 ≠ 14/9D. 45/18 = 5/2 (divide by 9) and 35/14 = 5/2 (divide by 7)The last two ratios represent proportional quantities
help me for brainlist
Answer:
1. g. $0.10 per square inch
2. b. $0.08 per square inch
3. f. $10
4. m. $8
5. h. 79 in²
6. j. 113 in²
Step-by-step explanation:
1. A = πr²
r = diameter ÷ 2 = 10 ÷ 2 = 5
A = π(5)² = 25π in² ≈ 78.53981
$8.00/25π = $0.10 per square inch
2. A = πr²
r = diameter ÷ 2 = 12 ÷ 2 = 6
A = π(6)² = 36π in² ≈ 113.0973355
$10.00/36π = 0.088419 = $0.09 per square inch
3. information/answer was provided
4. information/answer was provided
5. A = πr²
r = diameter ÷ 2 = 10 ÷ 2 = 5
A = π(5)² = 25π in² ≈ 79 in²
6. A = πr²
r = diameter ÷ 2 = 12 ÷ 2 = 6
A = π(6)² = 36π in² ≈ 113 in²
Each exterior angle of a triangle has three remote interior angles.
Answer: False
y = 2x + 4
y = 3x + 6
Solve for x
Answer:
(-2,0)
Step-by-step explanation:
New reported cases in New York state sinc 1999..Y is the represents the number of new cases....Find project cases since 2011
Answer:
where is the photo?
Step-by-step explanation:
3.2(s+10)=32
what is s?
Ethan reads 330 pages in 3/4 hour. How many pages does he read per hour?
Answer:
440
Step-by-step explanation:
330 divided by 3 times 4 is 440 and thats your answer.
====================================================
Work Shown:
330 pages = 3/4 hour
4*(330 pages) = 4*(3/4 hour) ........ multiply both sides by 4
1320 pages = 3 hours
1320/3 pages = 3/3 hours ...... divide both sides by 3
440 pages = 1 hour
Ethan's rate is 440 pages per hour.
1. Sort numbers starting from the smallest:
-0.5; -1.2; -0.65; 1.5; 0.2; 1.13
PLS HELP NOBODY EVER ANSWERS ME
Answer:
0.2 0.5 0.65 1.5 1.13
Step-by-step explanation:
smallest to largest
-1.2
-0.65
-0.5
0.2
1.13
1.5
Simlify the expression 4^3 +(3 - 2).
Answer:
The answer is 65
Step-by-step explanation:
3-2 = 1
4^3 = 64
64+1 = 65
Hope this helps.
Answer:
[tex]65[/tex]
Step-by-step explanation:
Firstly, you have to Simplify what's inside the parentheses.
and that is 3-2 = 1.
[tex] {4}^{3} + 1[/tex]
Secondly, you have to Simplify 4³ to 64. 4 to the power of 3 is 64.
[tex]64 + 1[/tex]
And lastly, you have to simplify 64 + 1. which is.
[tex]65[/tex]
Therefor, the answer is, 65.
What is the equation of the graph?
Plz help. Will give brainliest
Answer:
So is there are 10 cats for every 4 dogs,
If there are 5 cats that is half of 10 so half of 4 is 2
Now there are 32 dogs that is 8 times more than 4 so 10 x 4 is 40 so the answers are
Cats 10 5 8
Dogs 4 2 32
Plz give brainiest
The table shows information about all students doing GCSE's at a school.
Year 10 Year 11 Total
Girls: 90 60 150
Boys: 60 80 140
Total: 150 140 290
What fraction of the boys are Year 11?
Give your answer in its simplest form
Answer:
[tex] \frac{1}{2} [/tex]
Step-by-step explanation:
[tex] \frac{130}{260} = \frac{1}{2} [/tex]
The fraction of the boys of Year 11 is 1/2.
What is a fraction?Fractions are used to represent smaller pieces (or parts) of a whole.
Given that, there are total 260 students of 11 years in which 130 are girls and 130 are boys.
The fraction of boys of 11 years = 130/260 = 1/2
Therefore, half of the strength of students are boys.
Hence, The fraction of the boys of Year 11 is 1/2.
For more references on fractions, click;
https://brainly.com/question/10354322
#SPJ2
Please answer this its in the picture
The correct answer is
2 cents.
Answer:
the answer is 0.0800320128 or in simplified form 0.08
Step-by-step explanation:
First you divide 12 ÷ 5.88 = 2.04081632653. Then you divide 20 ÷ 10.20 = 1.96078431373. Lastly you subtract 2.04081632653 - 1.96078431373 = 0.0800320128 or 0.08