Answer:
The volume of the 80% ammonia that is to be drained before water is added is 7.5 quartz
Step-by-step explanation:
The volume of the ammonia and water mixture = 5 gallons
The percentage of ammonia in the mixture = 80%
The volume of ammonia desired = 5 gallons
The percentage concentration of ammonia desired = 50%
The diluting solution = Pure water
The measure of 4 quarts = 1 gallon
Therefore, we have, by equivalence solutions;
80% × x gallon = 50% × 5 gallons
x gallon = 50% × 5 gallons/(80%) = 3.125 gallons
x = 3.125 gallons
The volume of the 80% ammonia that is to be drained = 5 gallons - 3.125 gallons = 1.875 gallons
4 quarts = 1 gallon
1 gallon = 4 quarts
∴ 1.875 gallons = 4 × 1.875 quartz = 7.5 quartz
The volume of the 80% ammonia that is to be drained before water is added = 7.5 quartz
Answer:
7.5
Step-by-step explanation:
1. The price of the video game was $60.00. Thelprice was reduced by 25%. What was the sale price of the video game? A $15.00 B. $25.00 C. $45.00 D. $75.00
Answer:
The answer is A. $15.00
Step-by-step explanation:
Take 25% of 60 and that is 15. Please give me brainliest
Answer:
$45.00
Step-by-step explanation:
To find percentage, most start out by dividing the percent by 100:
25 ÷ 100 = 0.25
Then, to find the percentage of 60, we multiply them.
$60 x 0.25 = $15
15 is 25% of 60. However, we're asking the sale price of the video game, not the amount it was reduced. To find this out we subtract the reduced amount from the original number:
$60 - $15 = $45
≧◡≦
Mocha here! If this answer helped you, please consider giving it brainliest because I would appreciate it greatly. Have a wonderful day!
At her two-year well visit, Lucy was
33 inches tall. At her three-year well visit,
she was 36 inches tall. What was Lucy's
approximate percent increase in height?
Please help me
Answer:
109% or 110% if you round
Step-by-step explanation:
36/33 to get change in percent
Solve the absolute value equation.
4 − |x| = 1 25 POINTS
Which graph represents the inequality?
y>- 1/2
OA
OB
OC
OD
Answer:
A
Step-by-step explanation:
Given the inequality, y > -½, the graph that represents this would have a directed line starting from -½ and pointing to your right. It would also have an unshaded circle, or empty circle, signifying that -½ is not included among the set of possible values of y.
Thus, the right graph would be graph A.
Solve x2 – 12x + 26 = 0 by completing the square.
Answer:
6±√10
Step-by-step explanation:
x^2-12x+26=0
x= ± √10 +6
6±√10
The solutions of the given quadratic equation [tex]x^2 - 12x + 26 = 0[/tex] are;
x = 6 + √10 and x = 6 - √10.
To solve the quadratic equation [tex]x^2 - 12x + 26 = 0[/tex]
using completing the square method, follow the steps below.
Move the constant term to the right side of the equation
[tex]x^2 - 12x = -26[/tex]
To find the value that completes the square, divide the coefficient of x by 2 and square it.
[tex](-12/2)^2 = 36[/tex]
Add and subtract the value obtained in step 2 to the left side of the equation
[tex]x^2 - 12x + 36 - 36 = -26[/tex]
Simplify the left side of the equation by factoring the perfect square trinomial
[tex](x - 6)^2 - 36 = -26[/tex]
Add 36 to both sides of the equation to isolate the perfect square trinomial
[tex](x - 6)^2 = 10[/tex]
To Take the square root of both sides of the equation
x - 6 = ±√10
Solve for x
x = 6 ± √10
So, the solutions of the given quadratic equation [tex]x^2 - 12x + 26 = 0[/tex] are x = 6 + √10 and x = 6 - √10.
Learn more about equations here;
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Jamel wants to buy a PS 5. He found it for $500
with a 30% discount on Black Friday. How much
would he pay before taxes ?..
Answer:
150
Step-by-step explanation:
its 150 without taxes
Answer:
350
Step-by-step explanation:
Assumung that the $500 is before taxes, Jamel would have to pay $350.
$500 = price before discount
30% = discount
This means that Jamel would be paying 70% of the orginal price, because 30% of it is already taken off.
0.7*500=350
Answer: $350
Please answer this!
Answer:
B, 2100
Step-by-step explanation:
Answer: 6687654
Step-by-step explanation:
I really need help with this
What is the slope of the line?
Answer:
In technical terms, the slope of the line is the change in y over the change in x. But I just like to think of it as rise over run. To find the slope of the line, pick two points on the line.
Is 3xy + 8 = 4y a linear equation ?
Answer:
No because of the 3xy term. For an equation to be considered linear there has to be one y value for every x value given
The answer is 3xy + 8 = 4y is not a linear equation.
What are linear equations?Linear equations help in representing the relationship between variables such as x, y, and z, and are expressed in exponents of one degree. In these linear equations, we use algebra, starting from the basics such as the addition and subtraction of algebraic expressions.
Given here: 3xy + 8 = 4y
The degree of this equation is 2 and thus the graph of this equation is not linear.
Hence, 3xy + 8 = 4y is not a linear equation
Learn more about linear equations here:
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What is the equation of a line, in point-slope form, that passes through (-8, 1)and has a slope of ?
O y+1=(x - 8)
Oy+8= 5 (1-1)
oy-1-5(x + 8)
Oy-8= + (x+1)
Answer:
y-1 = 5(x+8)
Step-by-step explanation:
The standard equation of a line in point slope form is expressed as;
y-y0 = m(x-x0)
m is the slope
(x0, y0) is the point
Given
Slope m = 5 (assumed value)
Point (-8,1)
Substitute the given data's into the formula
y -1 = 5(x-(-8))
y-1 = 5(x+8)
Hence the required equation is y-1 = 5(x+8)
Which of the following does NOT satisfy the commutative property?
Multiplication with 3x3 matrices
O Multiplication with integers
O Multiplication with complex numbers of the form a + bi
O Multiplication with real numbers
9514 1404 393
Answer:
A. Multiplication with 3×3 matrices
Step-by-step explanation:
Multiplication with real or complex numbers is commutative. Matrix multiplication is not commutative, in general.
How do I make 2x+y+ 3X - 7 y=mx+b
Step-by-step explanation:
[tex]2x + y + 3x - 7y \\ = (2x + 3x) + (y - 7y) \\ = (5x) + ( - 6y) \\ = 5x - 6y \\ = mx + b \\ where \: \: m = 5 \\ where \: \: b = - 6y[/tex]
Which method could be used to estimate the growth rate of an exponential function from its graph?
-Divide the value of the function at x=3 by the value of the function at x=0, and then take the square root of the result.
-Divide the value of the function at x=2 by the value of the function at x=0, and then square the result.
-Divide the value of the function at x=2 by the value of the function at x=1, and then subtract the result from 1.
-Divide the value of the function at x=0 by the value of the function at x=1, and then subtract the result from 1.
Answer:
-Divide the value of the function at x=2 by the value of the function at x=1, and then subtract the result from 1.
Step-by-step explanation:
hope this help
pick me as the brainliest dont report me please
The volume of one of the Great Lakes is 3.5 × 103 cubic kilometers. If there are 6.3 × 107 fish in the lake, what is the average number of fish per cubic kilometer?
A.
2.205 × 1011
B.
1.8 × 104
C.
1.8 × 1010
D.
2.205 × 104
Answer:
b
Step-by-step explanation:
PLS HELP BEST AWNSER GETS BRAIN THINGY
Answer
I think its C which is 112
Answer:
112
Step-by-step explanation:
i did the math
find the value of y in the formula y=5a-3b+c, if a=12, b=4, and c=8
Answer:
5. Is your answer for ur questions
Answer:
y= 56
Step-by-step explanation:
y=5a-3b+c
a=12, b=4, c=8
y= 5(12) - 3(4) + (8)
y= 60 - 12 + 8
y= 56
- I hope this helps have a great night
5. - (m+) =
— Чт - 1=34
Answer:
The objective of this study was to examine the chronic effects on lower-body strength in resistance trained men of performing varying training volumes over 6
Step-by-step explanation:
need help with finals
Answer:
15
Step-by-step explanation:
i already did that today
write 13/5 as a mixed number
Answer:
2 3/5
Step-by-step explanation:
In the recipe of a juice 2 cups of sugar is needed for 3 oranges. How many
oranges are needed for 6 cups of Sugar?
Answer:
9 oranges
Step-by-step explanation:
To answer this question all you need to do is multiply both numbers (2 and 3) by 3 because to get to 6 from 2 you have to multiply by 3. So if you multiply 3 by 3 you get 9.
match each fraction with the equivalent expressions plz help
-2 divided by 10
10 divided by -2
1 divided by 5
5 divided by 1 so which on matches each one
5/1
-2/10
10/-2
1/5
-2 divided by 10
-2/10
10 divided by -2
10/-2
1 divided by 5
1/5
5 divided by 1
5/1
Help pls ASAP thank you !!!
Answer:
I haven't learned this but I think it's D.
Step-by-step explanation:
HELP ME PLEASE!!!! I NEED HELP!!!!!
Answer:
(8, -22)
Step-by-step explanation:
If you solve to find the slope of the first table on the left you get -4x +10 and the second table you get -3x+2. You can find their intersection on the calculator and get (8, -22)
PLSSS HELPPP WITH THIS QUESTION I WILL GIVE 12 POINTS AND THE BRAINLIEST
Answer:
22%
Step-by-step explanation:
theres 2 green marbles and 9 marbles in total
2/9=0.2222222
Here is a riddle: “I am thinking of two numbers that add up to 5.678. The difference between them is 9.876. What are the two numbers?”
The riddle can be represented with two equations. Write the equations
Answer:
X + Y = 5.678
X - Y = 9.876
The two numbers: X = 7.777 Y = -2.099
Step-by-step explanation: solve by elimination
X + Y = 5.678
X - Y = 9.876 . Add the two equations so the y cancels. Solve for x
2x = 15.554 . Divide both sides by 2
X = 7.777 Substitute in the original equations to find Y
7.777 + y = 5.678 . Subtract 7.777 from both sides
Y = - 2.099
check in the second equation:
7.777 -(-2.099) = 9.876
7.777 + 2.099 = 9.876 True
The two numbers is X = 7.777 and Y = -2.099.
And, the two equation is X + Y = 5.678 and X - Y = 9.876.
Given that,
I am thinking of two numbers that add up to 5.678. The difference between them is 9.876.Here we assume the one number be X and the other number be Y.
Based on the above information, the calculation is as follows:
X + Y = 5.678
X - Y = 9.876
2x = 15.554
X = 7.777
Now
7.777 + Y = 5.678
Y = - 2.099
Therefore, the above should be the answers.
Learn more: brainly.com/question/24169758
okay keep scrolling if you are doing school......please help...... how many of yall single? because I haven't been single for a year and this hitting hard
Answer:
how old r u
Step-by-step explanation:
Answer:
bro what you good like this is brainly
which expression is equivalent to -2(5x - 0.75)
Answer:
5(5x - 0.34
Step-by-step explanation:
Answer:
The correct answer is −10x+1.5
Step-by-step explanation:
−2(5x−0.75)
=(−2)(5x+−0.75)
=(−2)(5x)+(−2)(−0.75)
=−10x+1.5
What is cos H for this triangle?
Enter your answer by filling in the boxes.
cos H=
Answer:
k/j
Step-by-step explanation:
i just took the test, good luck!
3.3 X 10^{5} + 44{,}000 =3.3⋅10
5
+44,000
Answer:
374,000 or 3.74*10^5
Step-by-step explanation:
if its wrong u can report me and also srry if i got is wrong