Answer:
5 gardeners
Step-by-step explanation:
1 gardener - 6 trees in 30 min
or 1 tree in 5 min so in one minute gardener can plant 1/5 tree
in 45 min 1 gardener can plant 9 trees
so you would need 5 gardeners to do 45 trees in 45 min
We have that the number of men needed to plant 45 trees in 45 minutes is
From the question we are told that
3 gardeners can plant 18 trees in 30 minutes.
plant 45 trees in 45 minutes?
Generally the equation for the One gardeners time of planting is mathematically given as
Since
3 gardeners can plant 18 trees in 30 minutes.
Therefore
[tex]X=\frac{18}{30}*\frac{1}{3}\\\\X=\frac{1}{5}trees/min[/tex]
Since
45 trees in 45 minutes
Therefore
1 tree for every min
Hence
Men need for 1 tree for every min is
[tex]1=x*\frac{1}{5}\\\\x=5[/tex]
Therefore
x=5men would plant 45 trees in 45 minutes
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Select the correct answer. If A = [5 -8 3 0] -and B = [2 -9 1 0] , which matrix is the result of 2A - 38?
A [4 11 3 0] B. (4 38 9 0] C. [4 11 9 0] D. [1 -18 1 0]
Answer: A
Step-by-step explanation: I got this right on Edmentum.
Adam bought of fruit that weighed 6 3/8. If he bought a second box that weighed 7 2/5 kilograms, what is the combined weight of both boxes?
Answer:
The combined weight is 13 31/40.
Step-by-step explanation:
in desperation it divided 4 x 6 -12 which operational will do you do first addition be subtraction multiplication division
what the answer
pls answer pls
Answer:24-12=12
Step-by-step explanation:
What is the solution to this system of equations?
X+ 2y = 4
2x-2y = 5
O (3.-53
0
(3.)
no solution
infinitely many solutions
Answer:
X+2y=4
4+2y=x
2(2+y)=x
2x-2y=5
2(x-y)=5
x-y=5/2
Answer:
(x, y) = (3, 1/2)
Step-by-step explanation:
x + 2y = 4
2x - 2y = 5
There is more than one way to do this. I will do it by substitution.
From the first equation, x + 2y = 4, so x = (-2y) + 4
Now, in the second equation, I will replace x with (-2y + 4)
2(-2y + 4) - 2y = 5
-4y + 8 -2y = 5
-6y + 8 = 5
-6y = -3
6y = 3
y = 3/6
---------------------------------> y = 1/2, one part of the answer
Now I can go back to the first equation, and relpace 'y' with 1/2
x + 2(1/2) = 4
x + 1 = 4
-----------------------------------> x = 3, the other part of the answer
So now we believe the solution is (x, y) = (3, 1/2)
Now check the answer, back in the original equations!!
------> In the first equation, we would have 3 + 2(1/2) = 4.
3 + 1 = 4
That is true
-------> In the second equation, we would have 2(3) - 2(1/2) = 5
6 - 1 = 5
That is true
Our answer is found and checked.
(x, y) = (3, 1/2)
The sum of 3 times the value of x and 2 is equal to 4 less than 5 times the value of x. Witch equation can be used to find the value of x?
its scale factoring, please help thanks
-2 - 4w = 7w – 8
Algebra 2
Solve for n: 21 K - 3n + 9 p is greater than 3 p + 12
Answer:
n > p + 1 + 7k
Step-by-step explanation:
21k - 3n + 9 > 3p + 12
21k - 3n > 3p + 12 - 9
3n > 3p + 3
3n > 3p + 3 + 21k
n > (3p + 3 + 21k)/3
n > p + 1 + 7k
g(x) = -3x2 - 4x + 12, find g(-4).
Answer:
Your answer is -20
Hope that this is helpful. Vote and like it
Answer:
11
Step-by-step explanation:
After selling half his old games, Sam went and bought 8 new ones. He
now has 30 games. How many did he start with?
Answer: He started with 44
Step-by-step explanation: 44/2=22
22+8= 30
How do i solve this |6x-3|=7
Answer:
x=5\3,-2\3
Step-by-step explanation:
PLEASE HELP
Kayla and John are reading a graphic novel. Kayla has read 35 pages and is now
reading 20 pages per day. John has read 85 pages and is now reading 10 pages per
day.
3. How long will it be before Kayla and John have read the same number of
pages?
Answer:
Five days
Step-by-step explanation:
Find the measure of the missing angles.
Answer:
angles b and c should be 153° each.
Step-by-step explanation:
We know the smaller angle is 27°. The other small angle, vertical to the 27° angle is also 27° because they are vertical angles. Along the lines, two angles should form 180°. So 180-27=153°. All together the angles should be 360°. Check your answer by doing 153+153+27+27=360. therefore the missing angles are both 153°
which binomial is a factor of 8x^2y^3-18y
Answer:
Please check the explanation.
Step-by-step explanation:
Given the expression
[tex]8x^2y^3-18y[/tex]
Apply exponent rule: [tex]a^{b+c}=a^ba^c[/tex]
[tex]8x^2y^3-18y=8yy^2-18y[/tex] ∵ [tex]x^2y^3=yy^2[/tex]
[tex]=4\cdot \:2yy^2+9\cdot \:2y[/tex]
Factor out common term 2y
[tex]=2y\left(4x^2y^2-9\right)[/tex]
We know that the Binomial is an expression that consists of two terms. Thus,
(4x²y²- 9) represents the binomial factor of [tex]8x^2y^3-18y[/tex]
We can further simplify by Factoring 4x²y² - 9: (2xy + 3) (2xy - 3)
[tex]=2y\left(2xy+3\right)\left(2xy-3\right)[/tex]
Here:
(2xy + 3) and (2xy -3) are the binomial factors of [tex]8x^2y^3-18y[/tex] as each of them consists of two terms.
find x for the answer
Answer:
-90
Step-by-step explanation:
Solve by factoring
2x2 - 13x + 15 = 0
X=
(Simplify your answer. Use a comma to separate answers as needed.)
2×2-13(19÷13)+15=0
So x= 19/13
Write the fraction or mixed number as a percent.
11/20
Answer:55%
Step-by-step explanation:
Answer:
55% i don't know if this helps so sorry if not
9 is 150% of what number
Answer:
6
Step-by-step explanation:
Let the number be x then
150% of x = 9
150 / 100 * x = 9
150 x = 900
x = 900/ 150
x = 6
Hope it will help :)❤
Answer:
6
Step-by-step explanation:
150% of x = 9
150 / 100 * x = 9
150 x = 900
x = 900/ 150
x = 6
Which number is a part of the solutions for the inequality
7x- 5 ≥ −2
Answer:
Adding
(
−
x
+
5
)
on both sides, we get,
7
x
−
5
−
x
+
5
≥
x
+
1
−
x
+
5
⇒
6
x
≥
6
Step-by-step explanation:
Help with this question
acute isosceles
obtuse isosceles
acute scalene
equiangular equilateral
Answer:
obtuse isosceles
Step-by-step explanation:
isosceles angles
Triangle A is a scaled version of triangle B. The dimensions of triangle B are twice the dimensions of triangle A. The area of
triangle B is 144 sq cm.
What is the area of triangle A?
Answer:
576 sq cm
Step-by-step explanation:
For example imagine a rectangle, the area of which is width * height = area
If you multiply the dimensions by 2 you multiply the width AND the height which is 2 * width * 2 * height = 4 * width * height
This is true for all scalings, if you times the dimensions by n, you times the area by n^2
144 * 2^2 = 576
Write each equation in slope-intercept form.
y-3 = 4(x + 3)
y +1 = (x - 8)
Answers:
1. y=4x+15
1. y=4x+152.y=×-9
Which is the answer?
Answer:
c
Step-by-step explanation:
Subtract and then simplify
Answer:
simplify and subtract what
Step-by-step explanation:
Is -7/3 equivalent to -7/-3?
Answer:
no
Step-by-step explanation:
Please help fast! I only want correct answers. Random answers will be reported.
Answer:-4 left and -4 down or (-4,-4) hope this is right
Step-by-step explanation:
Answer:
D'(0, -1)Step-by-step explanation:
Translation by the vector <4, 3>
Coordinates of point D (-4, -4)
Apply translation rule:
D' = (-4 + 4, -4 + 3) = (0, -1)Drag each equation to the value that makes it true.
Answer:
1).5d=7
5×14=70
2).d-6=8
18-6=8
3).1/3.d=6
1/3×18=6
4).180÷d=10
180÷18=10
5).d+1/3=1
2/3+1/3=1
In the expression a = k/b , what is k?
a.
inverse variation
c.
constant of variation
b.
direct variation
d.
the solution
Answer:
C= constant of variation
Step-by-step explanation:
Answer:
its c
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Go and follow his account.
Answer:
.....I have no words...
Step-by-step explanation: