Answer:
If 3 women or 5 girls take 17 days to complete a piece of work, how long will 7 women and 11 girls working together take to complete the work? ∴ 7 women and 11 girls can do complete work in 3 ¾ days.
Step-by-step explanation:
Answer:
7 5/9 days or 8 days (if rounded)Step-by-step explanation:
3 women or 5 girls take 17 days to complete a piece of work.
The amount of work*people is:
(3 + 5)*17 = 136Number of people in the second case:
7 + 11 = 18Time required to complete same work:
136/18 = 7 10/18 = 7 5/9 daysQuincy, Rosalina and Jamal have formed a partnership. The total investment was $800,000. Quincy and Rosalina own 36.2% and 24.8% . How much money did Jamal invest? Show all steps and all work for full points
Answer:
402$
Step-by-step explanation:
work out 7 2/3 + 2 1/5
Answer:
9 and 13/15 or 148/15
Step-by-step explanation:
Hope this helps!
the sum of eight times a number and fifteen is seven. find the number.
Find the time based on the information given.
The time is ___ hours.
Time = Rate ÷ Distance
= 140.9649 mph ÷ 500 miles
= 0.28 hours
What is the factored form of the expression below?
6x^2 + 17x + 5
a (3x + 1)(2x + 5)
b (6x + 1)(3x + 5)
c The expression cannot be factored over the integers.
d (3x + 5)(2x + 1)
Answer:
The correct choice is option a. (3x + 1)(2x + 5)
Step-by-step explanation:
6x^2 + 17x + 5
= 6x^2 + 15x + 2x + 5
= 3x(2x + 5) + 2x + 5
= (3x + 1)(2x + 5)
Answer:
a. (3x+1)(2x+5)
Step-by-step explanation:
6x^2 + 17x + 5
6 = 3x times 2x and 5 = 1 times 5
(3x + 1) (2x + 5)
Examine the last statements made by the Dormouse:
(1) I breathe when I sleep.
(2) I sleep when I breathe.
Write each of the statements in "If .... then” form.
Answer:
I believe what your teacher is looking for is
"If I breathe when I sleep, then I sleep when I breathe."
"If I sleep when I breathe, then I breathe when I sleep."
Step-by-step explanation:
I hope I'm correct ^-^
How many liters of a 50% acid solution must be mixed with a 30% acid solution to get 180 L of a 40% acid solution?
____ liters of a 50% acid solution must be used.
Answer: 90
Step-by-step explanation:
What is the LCM? Please help asap!!
Answer:
d
Step-by-step explanation:
Answer:
C.) [tex]e^3r^3t^3[/tex]
Step-by-step explanation:
The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.
3x9 is 27
9,18,27
if you need more support just ask me ;)
Answer:
genius confirmed?? O.o
Step-by-step explanation:
Manz is too goated on da stix
After watching Donald Duck in Mathmagic Land, please type out three things that you learned from the video. Did you like the video? Why or why not? Please answer all parts to the question
Answer:
Hope this helps
Step-by-step explanation:
Mathmagic Land had taught me more about math that I never knew before. I learned that everything can be involved with math. It all starts at the Pythagoreans which were the Greek. An example of how math is used today, is by playing billiards.
In billiards, you have to have a good technique of how your going to hit the ball, (good angles,) and you have to have a precise calculation of the angle your going to hit it at.I also learned when you cut shapes like a sphere, it just makes more and more shapes.
This is what I learned watching the Mathmagic Land Video.
Yes, Donald Duck in Mathmagic Land taught me alot of things I did not know before.
What is the slope of the line represented by the points in the table shown below?
x
-4
-1
5
9
y
17
8
-10
-22
m=⅓
m=-3
m=3
m=-⅓
Answer: Slope of the line formed by the data is -3.
m=-3 for y=mx+b.
Step-by-step explanation: The slope is the change in y (the rise) divided by the change in x (the run) between two points on the line. I'll pick 2 points: (-4,17) and (9,-22). Any two points will work, if it is a straight line. For these points, y, the rise, changes from 17 to -22, for a net change of (-22 - 17) = -39 for y. x, the run, goes from -4 to 9, for a change in x of (9 - (-4)) = 13.
The rise(y) over the run(x) for these points is thus (-39/13) = -3
The slope is -3
prove that 5^(2n - 1) is divisible by 8
Answer:
Step-by-step explanation:
Prove that 52n − 1 is divisible by 8 for all n ∈ N.
Solution
To prove by induction, we must
1. Show it is true for n = 1
2. Assume true for n and prove it is true for n + 1.
Let P(n) be the statement 52n − 1 is divisible by 8.
When n = 1, 52 − 1 = 24, which is divisible by 8.
This proves P(1).
Suppose that P(n) is true, i.e., 52n − 1 is divisible by 8.
Then 52(n+1) − 1 = 52
· 5
2n − 1 = 52
(52n − 1) + (52 − 1).
Note that 52n −1 is divisible by 8 using P(n) and also 52 −1 = 24 is divisible
by 8. Thus we have proved that P(n + 1) is true.
We conclude that P(n) is true for all n ∈ N.
help me please WORTH 20 POINTS
Answer:
1
Step-by-step explanation:
Which property justifies the statement below?
Answer:
It's associative property because they essentially mean the same thing, with the same signs and numbers and all, except the numbers are in different places.
Step-by-step explanation:
Hope this makes sense :)
Which of the following number lines depicts the solution to 4(x+1) > 16 + 7x?
9514 1404 393
Answer:
b) x < -4
Step-by-step explanation:
Eliminate parentheses and you have ...
4x +4 > 16 +7x
-12 > 3x . . . . . . . . subtract 4x+16
-4 > x . . . . . . . . divide by 3
The number line will have an open circle at -4 and be shaded to the left. The pictures are a bit fuzzy, but we think choice B has that description.
According to the image below What does n=
Answer:
N=3
Step-by-step explanation:
When we divide we substract the powers when we multiply we add up the powers of the same number.
Answer:
n = 3
Step-by-step explanation:
3 -14x -x + 25 + 15 simplify
Answer:
−15+43
Step-by-step explanation:
1. Add the numbers
= 3−14x−x+25+15
= 43−14−
2. Combine like terms
= 43−14x−x
= 43−15
3. Rearrange terms
= 43−15x
= −15+43
There are 360 girls in a school and they account for 15% of the students studying there, How many students study at that school?
Answer:
1250
Step-by-step explanation:
Quadratics by taking square roots (intro)
Answer:
Lesser: -6
Greater: 6
Step-by-step explanation:
h(x) = -5x^2 + 180
-5(x^2 - 36)
-5(x+6)(x-6)
x = -6, 6
Use compatible numbers to estimate the correct quotient.
7)697
——
A) 90
B) 100
C) 110
D) 120
hi! can someone pls help me w this? i appreciate it! :$
Answer: A
Step-by-step explanation: A
por que es la mas parecida
Need HEELPPPP Did you know that chickens sometimes eat vegetables and fruits? A farmer likes to give the chickens apples to share. The farmer observes that 5 chickens eat 8 apples. What is the ratio of the number of chickens to apples?
3:8
5:8
8:3
8:5
Answer:
It would be 5:8
Step-by-step explanation:
HELPPP THIS IS DUE SOON...actually its late BUT STILL HELP
Answer: 100 99/100
Step-by-step explanation: add the 1/2 and 1/5 together by finding a common denominator(10). 1/2 would become 5/10 and 1/5 would become 2/10. 2/10 + 5/10 =7/10. now we're left with (7/10)^2 +3/10 x 5
to do (7/10)^2 you square the top and bottom to give you 49/100.
next we'll do 3/10 x 5 which would equal 15/10. so now all we have left to do is add 49/100 and 15/10. to do this we'll find a common denominator of 100. so well multiply the top and bottom by 10 to give you 150/100.
finally, 49/100 + 150/100 = 199/100 or as a mixed number, 100 99/100
Answer:
1[tex]\frac{99}{100}[/tex]
Step-by-step explanation:
I would start by turning the parentheses fractions into one fraction.
You could do binomial multiplication and get [tex]a^{2} +2ab+b^{2}[/tex] but it might take longer.
So I would just turn them into one fraction by finding the common denominator.
The common denominator here is 10
[tex]\frac{1}{5} (\frac{2}{2} )=\frac{2}{10}[/tex]
[tex]\frac{1}{2} (\frac{5}{5} )=\frac{5}{10}[/tex]
Now add
[tex]\frac{2}{10} +\frac{5}{10} =\frac{7}{10}[/tex]
Now apply: [tex](\frac{a}{b} )^{2} =\frac{a^{2} }{b^{2} }[/tex]
[tex](\frac{7}{10} )^{2} =\frac{7^{2} }{10^{2} } =\frac{49}{100}[/tex]
Now, multiplying the other fraction we get [tex]\frac{3}{10} (5)=\frac{15}{10}[/tex]
Now turn this into a fraction with denominator 100 to add the two fractions
[tex]\frac{15}{10} (\frac{10}{10} )=\frac{150}{100}[/tex]
[tex]\frac{49}{100} +\frac{150}{100} =\frac{199}{100} =1\frac{99}{100}[/tex]
There is also another method to add or subtract fractions without multiplying to get a common denominator in case you are interested:
[tex]\frac{a}{b}[/tex]±[tex]\frac{c}{d}[/tex]=[tex]\frac{ad+bc}{bd}[/tex]
Plz helppppp me I need to know how to do this for a test
How to find the maximum or minimum value of a quadratic function?
The maximum or minimum of a quadratic function is found evaluating the polynomial at [tex]x = -\frac{b}{2\cdot a}[/tex].
A quadratic function is an algebraic function of the form:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex], [tex]\forall \,x, y, a, b, c\,\in \mathbb{R}[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.[tex]y[/tex] - Dependent variable. [tex]a,\,b,\,c[/tex] - Coefficients.The maximum/minimum of a quadratic function is represented graphically by the vertex, which is the only point that has no a "twin" point by any means of symmetry. We can get the x-coordinate of the vertex by means of the quadratic formula:
[tex]a\cdot x^{2} + b\cdot x + (c- y) = 0[/tex] (2)
[tex]x = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot (c-y)}}{2\cdot a}[/tex], where [tex]b^{2}-4\cdot a\cdot (c-y) = 0[/tex].
Hence, the x-coordinate of the vertex is:
[tex]x = -\frac{b}{2\cdot a}[/tex] (3)
And the y-coordinate of the vertex is determined by evaluating (1) at (3):
[tex]y = f\left(-\frac{b}{2\cdot a} \right)[/tex] (4)
The maximum or minimum of a quadratic function is found evaluating the polynomial at [tex]x = -\frac{b}{2\cdot a}[/tex].
We kindly invite to check this question on maxima and minima: https://brainly.com/question/12870574
what is the slope of a line b perpendicular to line a with equation y=7x-9
Answer:
The slope of line b would be -1/7.
Step-by-step explanation:
This happens because if you have the slope of any line and are trying to find the perpendicular line to said line, the slope of the perpendicular line will always be the opposite reciprocal of the original slope.
Then, all you need to do is find some points and graph the lines.
Determine the coordinates of A(2,3) after a reflection in the line y=2
Answer:
When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the x-axis (the line of reflection)
Can someone please help me NO LINKS!!!
Answer:
14 is the correct answer
Answer:
14
Step-by-step explanation:
the answer is 14 when the equation is evaluated
Your normal work week is 30 hours. You make $10 an hour.Last week you worked 31 hours. What is your total paycheck.
Answer:
$310
Step-by-step explanation:
HELP QUIC
What is the value of x?
Enter your answer in the box.
Please help. Subtract using the number line.
−3/5 − (−2/5)
Select the location on the number line to plot the difference.
Answer:
[tex]-\frac{1}{5}[/tex]
Step-by-step explanation:
→ Remember what 2 minuses make
plus
→ Rewrite the question
[tex]-\frac{3}{5} +\frac{2}{5}[/tex]
→ Solve
[tex]-\frac{1}{5}[/tex]
Answer:
Other persons brainliest
Step-by-step explanation: