Answers
Answer:
A
Step-by-step explanation:
it takes 45 hours to plant 100 trees, so his rate is 100/45 trees per hour.
and it takes rose 40 hrs to plant the 100 trees, so her rate is 100/40 trees per hour
So add those together to get (100/45+100/40)
and then multiply them by P(which is in hours) to equal 100
(100/45+100/40)p=100
then divide by 100 both sides to get
p/45+p/40=1
Related Questions
AYUDAAAAAAAA POR FAVORRRRR
Answers
so sorry not sure how to do this ! :c
The following examples illustrate the commutative property of multiplication.
5 · 2 · 9 = 2 · 5 · 9
3.14 · 2 = 2 · 3.14
Study the examples, then choose the statement that best describes the property.
a · b = a ÷ b
a · (b · c) = (a · b) · c
a · b = b · a
a · b = a · c
Answers
A quadrilateral is graphed in the coordinate plane below. Which classification best describes the quadrilateral (parallelogram, rhombus, etc.)?
Answer in complete sentences and include all relevant calculations to support your conclusion.
Answers
9514 1404 393
Answer:
trapezoid
Step-by-step explanation:
One pair of sides is parallel, so the figure is a trapezoid.
__
The upper right and lower left line segments both have slopes of -2/3. Since their slopes are the same, they are parallel. The slope is found by counting grid squares between points where the lines cross grid intersections. Those crossings occur down 2 and right 3 grid squares apart, so the slope is ...
m = rise/run = -2/3
z > 34. Which of the following statements is the best way to describe the value of z? (3 points) The value of z is less than 34. The value of z is more than 34. The value of z has a maximum of 34. The value of z has a minimum of 34.
Answers
Answer:
ans: value of z is greater than 34
Step-by-step explanation:
draw the number line as shown in picture
Maya is riding on a bike course that is 35 miles long. So far, she has ridden 14 miles of the course. What percentage of the course has Maya ridden so far
Answers
Answer:
40%
Step-by-step explanation:
Find the percentage she has ridden so far by dividing 14 by 35:
14/35
= 0.4
So, Maya has ridden 40% of the course
Answer: 40%
Step-by-step explanation: i went to a percentage calculator and found out what it was
If asphalt pavement costs $0.78 per square foot, determine, to
the nearest cent, the cost of paving the shaded circular road
with center o, an outside radius of 50 feet, and an inner
radius of 36 feet.
Answers
Answer:
2590.33
Step-by-step explanation:
...............
An object has a mass of 630 kg and a volume of 7 m cube.
Find the density of the object in kg/m cube.
Answers
Step-by-step explanation:
Hey there!
According to the question;
Mass of an object (m) = 630 kg
Volume of an object (v) = 7m³
We know that;
[tex]density = \frac{mass(kg) \: }{volume( {m}^{3} )} [/tex]
or, density = (630/7) kg/m³
Therefore, density of the substance is 90kg/m².
Hope it helps!
how many unique triangles can be formed with two side lengths of 10 centimeters and one 40 angel?
Answers
Answer:
2 unique types
Step-by-step explanation:
we can form 2 isosceles triangles
1. 7/18 * 1 ⅐ + 2/3.
2. 3x + 1 ⅐ = 2
Answers
Answer:
Step-by-step explanation:
for first one's answer visit;
https://answers.everydaycalculation.com/subtract-fractions/2-3-minus-7-18
for sencond one;
3x=2+1
3x=3
x=1
for more info visit;
https://www.cymath.com/answer?q=3x-1%3D2
Help? Plz and thank u
Answers
Answer:
147
Step-by-step explanation:
A recent study indicated that the average cost of living for a family of four in various cities across the US was $65,351 with a standard deviation of $7712. A company is thinking about relocating to a city with a lower cost of living. They would like to choose a city in the bottom 30% of those surveyed. What is the cutoff for the cost of living that would make a city eligible for relocation by this company
Answers
Answer:
The correct answer is "57408".
Step-by-step explanation:
Given:
[tex]\mu=65351[/tex]
[tex]\sigma=7712[/tex]
[tex]p=0.15[/tex]
As per the standard table, we know,
[tex]z=-1.03[/tex]
Now,
⇒ [tex]z=\frac{x-\mu}{\sigma}[/tex]
By putting the values, we get
[tex]-1.03=\frac{x-65351}{7712}[/tex]
[tex]x=57407.64[/tex]
or,
[tex]=57408[/tex]
Find the missing dimension of the prism
Answers
X = 2 cm
Volume = Bh= 8×5×1/2×X= 80
X = 80/20 = 4
Malik, who is 5 feet tall, stands 15 feet from a mirror. In the mirror, he can see the reflection of the top of a tree, which he measures to be 92 feet away from the mirror. Determine the height of the tree pictured in the diagram above. Round your answer to the nearest foot if applicable. Use mathematics to explain how you determine your answer.
Answers
To rent an instrument from the school it costs a $50 insurance fee and then $350 per day of use. If Sally rents her instrument for 25 days before she buys her own, how much did she have to pay to rent one?
Answers
Answer:
$2,500
Step-by-step explanation:
$350 per day for 25 days
350*25=2450
Add the 50 for insurance and that makes it 2500
If its wrong im sorry
Answer:
8800 is the amount before she buys her own instrument
Step-by-step explanation:
350 x 25 = 8750
8750 + 50 = 8800
Can someone please help me?
Answers
Answer:
g(x)=-(x+2)(x-1)
g(x)=6-3x-3x^2
Step-by-step explanation:
Use desmos to graph each function and then just see which ones are equal to zero when x=-2 and x=1
Solve for x. Assume that lines which appear tangent are tangent. Help!!!
Answers
Answer:
x = 0
Step-by-step explanation:
From the intersecting secants theorem, If from an exterior point, we draw two secant segments to a circle, then the product of the length of one secant segment and its external secant part will be equal to the product of the length of the other secant segment and its external secant portion.
Thus, applying it to this question;
(x + 27 + 48) × (x + 27) = (x + 45)²
(x + 75)(x + 27) = x² + 90x + 2025
x² + 102x + 2025 = x² + 90x + 2025
Like terms will cancel put to give;
102x - 90x = 0
12x = 0
x = 0/12
x = 0
Is 12 1/2 even or odd. How do you know?
Answers
The right triangle below illustrates a parking lot, with the right angle at the bottom right of the triangle. Find the length x. Show all your work
Answers
....You didn't attach nothing but if X is the thing I wrote below. Do A^2+B^2=C^2. Basically the left side squared plus the bottom side squared equals X squared. Then square root What the left side of the equation is.
| \
| \ X
| \
| \
----------------------
Derive the first three (non-zero) terms of Taylor's series expansion for the function
(a) f(x)=sin(x)f(x)=sin(x) about the origin and thereby estimate sin(0.2)=
Answers
Answer:
We want to find the first 3 terms of the Taylor's series expansion for f(x) = sin(x) around x = 0.
Remember that a Taylor's series expansion of a function f(x) around the point x₀ is given by:
[tex]f(x) = f(x_0) + \frac{1}{2!}f'(x_0)*(x - x_0) + \frac{1}{3!}*f''(x_0)*(x - x0)^2 + ...[/tex]
Where in the formula we have the first 3 terms of the expansion (but there are a lot more).
So, if:
f(x) = sin(x)
x₀ = 0
The terms are:
[tex]f(x_0) = sin(0) = 0[/tex]
[tex]\frac{1}{2!}*f(x_0)'*(x - x_0) = \frac{1}{2} cos(0)*(x - 0) = x/2[/tex]
[tex]\frac{1}{3!}*f(x_0)''*(x - x_0)^2 = \frac{1}{6}*-sin(0)*(x - 0)^2 = 0[/tex]
[tex]\frac{1}{4!}*f(x_0)'''*(x - x_0)^3 = \frac{1}{24}*-cos(0)*(x- 0)^3 = -\frac{x^3}{24}[/tex]
We already can see that the next term is zero (because when we derive the cos part, we will get a sin() that is zero when evaluated in x = 0), then the next non zero term is:
[tex]\frac{1}{6!}*f(x_0)''''*(x - x_0)^5 = \frac{1}{2*3*4*5*6} *(x - 0)^5 = \frac{x^5}{720}[/tex]
Then we can write:
[tex]sin(x) = \frac{x}{2} - \frac{x^3}{24} + \frac{x^5}{720}[/tex]
Evaluating this in x = 0.2, we get:
[tex]sin(0.2) = \frac{0.2}{2} - \frac{0.2^3}{24} + \frac{0.2^5}{720} = 0.099667[/tex]
Joseph earns $10,000 a month working at a law firm. His monthly living expenses like food and gasoline amount to $3,500. He pays $2,700 for his mortgage. He also has $900 in credit card debt and pays $1,200 toward his auto loan each month. What is Joseph's debt-to-income ratio
Answers
Can anybody help me find the answer
Answers
Answer:
8 units²
Step-by-step explanation:
2(2) + 2(2) = 8
I’ll give brainliest
Answers
Answer:
Hello! answer: -12
Step-by-step explanation:
-36 ÷ 3 = -12
-72 ÷ 6 = -12
-108 ÷ 9 = -12
answer is -12
Answer:
-12
Step-by-step explanation:
To do this, you have to divide the x and y, to find the scale factor.
-36 ÷ 3 = -12
So the answer is -12.
A bag contains exactly 50 coins. The coins are either worth 10 cents, 20 cents or 50 cents and there is Atleast one of each. The total value of the coins is $10. How many different ways can this occur?
Answers
Answer:
This can happen in two ways:
1) 42 20-cent coins, 6 10-cent coins and 2 50-cent coins.
2) 30 10-cent coins, 10 20-cent coins and 10 50-cent coins.
Step-by-step explanation:
Given that a bag contains exactly 50 coins, and the coins are either worth 10 cents, 20 cents or 50 cents and there is at least one of each, and the total value of the coins is $ 10, to determine how many different ways can this occur, the following calculation must be performed:
48 x 0.5 + 1 x 0.2 + 1 x 0.1 = 24.30
48 x 0.1 + 1 x 0.2 + 1 x 0.5 = 5.5
48 x 0.2 + 1 x 0.1 + 1 x 0.5 = 10.3
45 x 0.2 + 4 x 0.1 + 1 x 0.5 = 9.9
44 x 0.2 + 5 x 0.1 + 1 x 0.5 = 9.8
42 x 0.2 + 6 x 0.1 + 2 x 0.5 = 10
30 x 0.1 + 10 x 0.2 + 10 x 0.5 = 10
Therefore, this can happen in two ways:
1) 42 20-cent coins, 6 10-cent coins and 2 50-cent coins.
2) 30 10-cent coins, 10 20-cent coins and 10 50-cent coins.
find the y intercept of the line on the graph
Answers
Answer:
Step-by-step explanation:
y-intercept is -4
Please help image attached
Answers
Answer:
hope it helps mark as brainliest
A cylindrical fuel tank is 1.25 meters high and has
a radius of 0.60 meter. If the tank can only be
filled to an 85% capacity to allow for expansion
of the fuel, what is the maximum volume of fuel?
Answers
Answer:
The maximum volume of the fuel is:
[tex]V_{fuel}=1.20 \: m^{3}[/tex]
Step-by-step explanation:
The volume of the cylinder is given by:
[tex]V=\pi r^{2}h[/tex]
[tex]V=\pi (0.6^{2})(1.25)[/tex]
[tex]V=1.41 \: m^{3}[/tex]
If the tank can be filled to 85% of its capacity, the maximum volume of the fuel will be:
[tex]V_{fuel}=1.41*(\frac{85}{100})[/tex]
[tex]V_{fuel}=1.20 \: m^{3}[/tex]
I hope it helps you!
Find the length x (plz help giving BRAINLY)
Answers
Answer:
x = (7×4) /8 = 7/2
Can someone help me out?
Which of the following set of side lengths could not be used to create a triangle? Provide your explanation.
a. 2 cm, 6 cm, 7 cm
b. 3 cm, 3 cm, 3 cm
c. 4 cm, 5 cm, 8 cm
D. 5 cm, 7 cm, 12 cm
Answers
9514 1404 393
Answer:
D. 5, 7, 12 cm
Step-by-step explanation:
In order for sides lengths to be able to form a triangle, the sum of the shortest two must exceed the longest. That is the case for all except D.
5 cm + 7 cm = 12 cm . . . . . is not greater than 12 cm
Using the following image-solve the problems below given that M the midpoint of LN.
Answers
Hello,
[tex]11x-21=8x+15\\\\3x=36\\\\x=12\\\\LM=11*12-21=111\\\\MN=8*12+15=111\\\\LN=2*111=222\\\\[/tex]
what is the missing angle
Answers
Answer:
the answer is 67 like the other angle because they are vertical from each other which make them the same
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
x = 67 degrees
Step-by-step explanation:
Use opposite angles! The angle opposite from x is 67, therefore x is also 67. Hope this helps! :)