Manny's cleaning supply store receives a mixture of 80% detergent and 20% water in 15-gallon buckets. Manny would like a mixture of 60% detergent and 40% water in 5-gallon buckets. To make this, he combines some 80/20 mixture with some pure water in each 5-gallon bucket. How many gallons of pure water does Manny add to each 5-gallon bucket? Express your answer as a decimal to the nearest hundredth.
Answer:
1.25 gallons of pure water
Step-by-step explanation:
Manny's cleaning supply store receives a mixture of 80% detergent and 20% water in 15-gallon buckets.
0.80 d + 0.20w = 15 gallon
Manny would like a mixture of 60% detergent and 40% water in 5-gallon buckets.
0.60d + 0.40w = 5 gallon
0.80 d + 0.20w = 15 ....... Equation 1
0.60d + 0.40w = 5 ......….. Equation 2
Using elimination method
Multiply Equation 1 with 0.60
Multiply Equation 2 with 0.80
We eliminate d
0.80 d + 0.20w = 15 × 0.6
0.60d + 0.40w = 5 × 0.8
=
0.48d + 1.2w = 9....... Equation 4
0.48d + 3.2w = 4..... Equation 5
Subtract Equation 5 from 4
= - 2.0w = -5
w = -5/-2
w = 2.5 gallons.
Hence: 2.5 gallons/2
= 1.25 gallons.
Therefore, Manny adds 1.25 gallons of pure water.
i don't understand this!
Answer:
at the left of the image, is it 37 or 57
Step-by-step explanation:
A function F(x) is such that F(-x) = F(x). If F(2) = -5. which of the following points must also be on the graph of F(x)? A. (-2,5) B. (2.5) C. (-2,-5) D. (-5. 2) E. (-5, -2)
Answer:
(-2,-5)
Step-by-step explanation:
Since F(x)=F(-x), F(2)=F(-2)=-5
So, (-2,-5) must be on F(x)
Max Points! Will Mark Brainliest To Whoever Gets Both Of These Correct First!
Answer:
c and d
Step-by-step explanation:
Answer:
c and d
Step-by-step explanation:
I have done this before
help please correct answers only thank you
what is the volume of this sphere
Answer:
2854.54
Step-by-step explanation:
Answer:
2855.69 cube unit.
Step-by-step explanation:
Volume of sphere=4/3 pie r^3
= 4/3 *22/7*8.8^3
= 2855.69 cube unit
6. Find XY. Any answers
What does the "complement of an event" mean? *
All outcomes of the event
The opposite event
The same event
none of above
Answer:
the answer is none of above
Answer:
all out comes that are not the event
so B i think
Step-by-step explanation:
And together the Event and its Complement make all possible outcomes..
ASAP ASAP ASAP
please help me with this
Answer:
b
Step-by-step explanation:
which table has a constant of proportionality between Y and X of 1/5?
Answer:
B
Step-by-step explanation:
From the table B has a constant of proportionality between y and x of 1/5.
We need to find which table has a constant of proportionality between y and x of 1/5.
What is constant of proportionality?Constant of proportionality is the constant value of the ratio between two proportional quantities.
The equation for direct proportionality is y = kx, which shows as x increases, y also increases at the same rate.
Now, k=y/x
From table A:
k=4/5 ÷ 2
=2/5
k=14/5 ÷ 7
=2/5
k=24/5 ÷ 12
=2/5
From table B:
k=8/5 ÷ 8
=1/5
k=9/5 ÷ 9
=1/5
k=2/10 =1/5
From table C:
k=16/5 ÷ 3
=16/15
k=26/5 ÷ 5
=26/25
k=36/5 ÷ 7
=36/35
Therefore, from the table B has a constant of proportionality between y and x of 1/5.
To learn more about the constant of proportionality visit:
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Joanna is baking cookies and
cupcakes. She has 1 cups of
sugar already. The cookies require
2 cups of sugar and the
cupcakes require į cup of
sugar.
How much more sugar does
Joanna need?
HELPP ASAPPP
Answer:
3(4/3) = 4
Step-by-step explanation:
Karen already has 1/2 cup of sugar on hand, she needs (4 - 1/2), or 3 1/2, more cups of sugar to triple the recipe.
Hope this helps ;)
The volume of a circular cylinder is calculated using the formula
Answer:
6%
Step-by-step explanation:
Since the volume of the cylinder V = πr²h where r = radius of cylinder and h = height of cylinder and h = 2r, we have that r = h/2.
Substituting r into v, we have
V = πr²h
V = π(h/2)²h
V = πh³/4
Now let ΔV be the error in the volume and Δh be the error in the height.
Since h is raised to the power of 3,
ΔV/V = 3Δh/h
multiplying both sides by 100, we have
ΔV/V × 100 = 3Δh/h × 100
So, we have
ΔV/V × 100 = 3 × Δh/h × 100
since Δh/h × 100 = percentage error in height = 2%, and ΔV/V × 100 = percentage error in volume,
ΔV/V × 100 = 3 × 2% = 6%
So, the percentage error in volume is 6 %
Find three consecutive odd integers such that the sum of the first and the third is 70. Find the integers.
Answer:
33, 35, 37
Step-by-step explanation:
Let the tree consecutive odd integers be x, x +2 and x + 4
According to the given information:
Sum of the first and the third is 70
[tex] \therefore x + x + 4 = 70\\\\
\therefore 2x = 70 - 4\\\\
\therefore 2x = 66\\\\
\therefore x = \frac{66}{2}\\\\
\therefore x = 33\\\\
\implies x + 2 = 33 + 2 = 35\\\\
\& \hspace{25 pt}x + 4 = 33 + 4 = 37\\\\[/tex]
Thus, the three consecutive odd integers are 33, 35 and 37.
Verification: 33 + 37 = 70
what is the horizontal intercept of 3x+5y=-5
Answer:
(-5/3, 0)
Step-by-step explanation:
The horizontal intercept basically is the x-intercept. To find the x-intercept, substitute in 0 for y and solve for x.
BRAINLIEST A store owner mixed 8 pounds of peanuts and 9 pounds of m&ms, the mixture sold for 55.27. a second mixture included 6 pounds of peanuts and 4 pounds of m&ms and sold for 42.70. find the cost per pound of the peanuts and m&ms
Answer:
$4.99
Step-by-step explanation:
8(3.79)+5y=55.27
30.32 +5y=55.27
5y=24.95
y=4.99
If c is a number with no exponent, what is the value of c in the equation below?
StartFraction 4 Superscript 7 Baseline Over 4 cubed EndFraction = a Superscript b Baseline = c
Answer:
The answer is 256
Step-by-step explanation:
This is the right answer.
If c is a number with no exponent, what is the value of c in the equation below?
StartFraction 4 Superscript 7 Baseline Over 4 cubed EndFraction = a Superscript b Baseline = c
⇒ 256
This is the truth. I got the answer wrong to show you guys the answer.
Have a good day and stay safe!!!!!!!
2020 edgen
Answer:
256!!!
Step-by-step explanation:
I WILL MARK BRAINLIEST!!!!!!! Point Q (-3,2) is translated 4 units left and 2 units down. What is the ordered pair of Q' after this translation?
A.(-7,0)
B.(4,0)
C.(4,4)
D.(1,4)
E(1,0)
F.(-7,4)
3 + 2x = -6x + 4
What does x equal?
Please help! What is the slope?
Answer:
1/3
Step-by-step explanation:
11. List the steps to constructing the line of reflection.
Answer:
Construct a perpendicular from A to the line of reflection. Measure the length from A to the intersection point. Copy this length on the perpendicular bisector starting at the intersection point to find A'. You have located ONE vertex of the image.
Find the Product:
[tex](9+4s)(4+s)[/tex]
3. Jack received $75 for his birthday. He spent $25 on a new baseball glove, S45 on a new pair of shoes, and $5
on digital music
(a) What portion of his birthday money went toward new shoes? Express the value as a simplified
fraction. Then, convert the fraction to a percent Show your work
(b) What portion of his birthday money went toward music? Express the value as a simplified fraction.
Then, convert the fraction to a decimal. Round the decimal to the nearest hundredth or indicate it as
repeating. Show your work
(C) Write the ratio of money Jack spent on music to money Jack spent on shoes. Simplify your answer.
What does the ratio mean? What fraction is equivalent to the ratio?
Answer:
a) What portion of his birthday money went toward new shoes? Express the value as a simplified
fraction. Then, convert the fraction to a percent Show your work
Step-by-step explanation:
a) What portion of his birthday money went toward new shoes? Express the value as a simplified
fraction. Then, convert the fraction to a percent Show your work
Fill in the first blank: ____÷2=_____ Type your answer below as a number (example: 5, 3.1, 4 1/2, or 3/2): 100% The problem expects a numeric answer (ex: 3.1, 5, 2/3 or 1 2/3). You entered "12/2=6"
Answer:
Are put in both 1st and 2nd blank and simplified.
Step-by-step explanation:
5 ____÷2=_____ 2.5
3.1 ____÷2=_____ 1.55
4 1/2=9/2 ____÷2=_____ 9/4=2.25
3/2 ____÷2=_____ 3/4=0.75
If we put the values in the first blank we get the answer simply by dividing it by 2.
6.2 ____÷2=_____ 3.1
10 ____÷2=_____ 5
4/3 ____÷2=_____ 2/3
10/3____÷2=_____ 1 2/3
If we fill in the blanks with the numbers given as answers we do reverse operation. We multiply the answer with 2 to get the numbers in the first blank.
10____÷2=_____ 5
6.2____÷2=_____3.1
9____÷2=_____4 1/2
3____÷2=_____ 3/2
What is the sum? Express the answer in scientific notation.
(2.6 x 10⁻⁵)+(9.2 x 10⁻⁵)
11.8 times 10 superscript negative 10
1.18 times 10 Superscript negative 6
11.8 times 10 Superscript negative 5
1.18 times 10 Superscript negative 4
h e l p m e
Answer:
1.18 times 10 Superscript negative 4 YW
Step-by-step explanation:
Answer: D
Step-by-step explanation:
Solve the following. 5 ice cream cones cost $8.25. At this rate, how much do 2 ice
cream cones cost?
Your answer
Answer:
$3.30
Step-by-step explanation:
5x = 8.25
divide by 5
one ice cream equals $1.65
multiply by 2 to get $3.30
Given the triangle XYZ, what is cos Z?
Y
16
30
X
34
Z
Answer:
34
Step-by-step explanation:
Let event A = The student plays basketball.
Let event B = The student plays soccer.
What is PlA or B)?
The probability P(A or B) is equal to 5/10 = 0.5
How to find the probability?
P(A or B) is the probability that a randomly selected student plays either basketball of soccer.
On the diagram, we can see that there are a total of 10 students, such that 2 play only basketball and 3 play only soccer.
P(A or B) is equal to the quotient between the number of students that play one of the sports (here we don't count the ones that play both sports) and the total number of students.
Then we have:
P(A or B) = (2 + 3)/10 = 0.5
If you want to learn more about probability:
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What is the slope of the line that passes through the points
(1, -3) and (4, 2)?
Answer:
[tex]m =\frac{5}{3} \\\\m = 1\frac{2}{3}[/tex]
Step-by-step explanation:
[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{2-\left(-3\right)}{4-1}\\\\m = \frac{2+3}{4-1}\\ \\m =\frac{5}{3} \\\\m = 1\frac{2}{3}[/tex]
Find the volume of a square pyramid with base edges of 48 cm and a slant height of 26 cm
Answer:
mks
Step-by-step explanation:
w mw
What are the factors of 6x2+37x−60?
3x−4 and 2x+15
3x+4 and 2x−15
2(x−2) and 3(x+5)
2(x+2) and 3(x−5)
Answer:
3x-4 and 2x+15 is the answer
Step-by-step explanation:
I took the test
