Answer:
its 15
Step-by-step explanation:
i took the test and got it right
good luck!!
99 % of the trees in our neighborhood are eucalyptus trees. The town planning commission wants to get rid of some of these trees because they spread too quickly. However, the people in my neighborhood like the trees. The commission argues that their new eucalyptus tree removal plan will cut down so few eucalyptus trees that 98% of the trees in our neighborhood will be eucalyptus trees. If the plan only involves removing eucalyptus trees, what percent of the existing trees in my neighborhood would the plan remove
Answer:
50%
Step-by-step explanation:
Let the total number of trees be T and suppose that this is made up of eucalyptus trees E and other kinds of trees, O.
Then E+O=T, and since 99% of the trees are eucalyptus trees, EE+O=0.99.
Therefore
0.99E+0.99O=E
0.01E=0.99O
E=99O.
Suppose we reduce the number of eucalyptus trees by some amount x and that the remaining number of eucalyptus trees are now 98% of the total trees.
Then we would have E−x(E−x)+O=0.98.
Therefore,
0.02(E−x)=0.98O
0.02E−0.02x=0.98O
0.02x=0.02E−0.98O
x=E−50(0.98)O
x=E−49O
x=E−49(E99)
x=5099E≈0.505050...×E.
So we end up removing a little over half of the eucalyptus trees. EDIT: Forgot to mention - removing 50.505050...% of the eucalyptus trees means that we are removing 0.50505050....×0.99T which is 0.5T or half the trees in the neighborhood.
a 550 washing machine is discontinued 15% how much is saved
Estimate the line of best fit using two points on the line.
(5, 60)
(3, 44)
O A. y= 5x + 20
O B. y = -5x + 16
O C. y= -8x + 16
D. y = 8x+ 20
The estimated equation of line is y = 8x+ 20
What is linear equation?
A linear equation is defined as an equation in which the highest power of the variable is always one.
Two points on the line (5, 60), (3, 44)
[tex]y- y_1= \frac{y_2-y_1}{x_2-x_1} (x-x_1)[/tex]
[tex]y- 60 = \frac{60-44}{5-3} (x-5)[/tex]
[tex]y- 60 = \frac{16}{2} (x-5)[/tex]
[tex]y = 8 (x-5)+ 60[/tex]
[tex]y = 8x+ 20[/tex]
Hence, the estimated equation of line is y = 8x+ 20
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Please help me this is my last question
Answer:
x=-22
Step-by-step explanation:
The radius of a circle is 12 feet. What is the circle's area?
r=12 ft
Use 3.14 for .
square feet
Submit
Answer:
452.16 ft²
Step-by-step explanation:
Area = πr² = π(12)² = 144π = 452.16 ft²
O is the center of the circle. Assume that lines that appear to be tangent are tangent. What is the value of x?
Answer:
x=48
Step-by-step explanation:
PLZZ HELP
2/3 divided by 5
Answer:
2/15
Step-by-step explanation:
2/3 divided 5 is really just:
2/3*1/5
that is just 2/15!
Answer:
2/15
Step-by-step explanation:
(Keep Change Flip) KCF
2/3 / 5 =
2/3 *1/5 = 2/15
When dividing you do the opposite which is multiplication.
he total cost of a vase of spring flowers at a flower shop depends on the number of flowers ordered. The vase costs $3, and each flower costs $2.50. Which equation can be used to findc,the total cost of the vase withfflowers?
Answer:
3+2.50x
Step-by-step explanation
x represents how many flowers you bought which you mulitply with 2.50 since each flower is 2.50 dollars. Then you add 3 since the cost of the vase is 3 dollars.
hello please help i’ll give brainliest
Answer:
landslide
Step-by-step explanation:
MARK AS BRAINLEST!!!
Answer:
earthquake okkkkkkkkkkkkk
Regina has 16 pencils. James has 3 times as many pencils as Regina.
What are two ways to find the number of pencils James has?
A. 16 + 3 and 16 X 3
B. 16 + 16 + 16 and 16 x3
O C. 3+3+3 and 48 X3
D. 16 + 3 and 3 X 48
E. 3+3+3 + 16 and 16 X 3
Answer:
B
Step-by-step explanation:
Work out
(8×10^-2)−(4×10^-4)
Give your answer in standard form.
Answer:
7.96 x 10^2
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
The standard form of [tex]8\times10^{-2} - 4\times10^{-4}[/tex] is [tex]\frac{38}{5000}[/tex].
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, [tex]8\times10^{-2} - 4\times10^{-4}[/tex].
[tex]= \frac{8}{10^2} - \frac{4}{10^4}[/tex].
[tex]= \frac{8}{100} - \frac{4}{10000}[/tex].
[tex]= \frac{80 - 4}{10000}[/tex].
[tex]= \frac{76}{10000}[/tex].
[tex]= \frac{38}{5000}[/tex].
learn more about numerical expressions here :
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PLS HELPPPP MEEEE I NEED HELP ASAPPP WITH THIS QUESTION
Answer: ratio 2/1 percent 5%
Step-by-step explanation:
you are welcome
Answer:
a. 23:12
b. 5.6%
Step-by-step explanation:
help me please this is super hard for me
Answer:
D
Step-by-step explanation:
Answer:
Answer is D I believe
Step-by-step explanation:
shows all of the possible outcomes
What is the GCF of 18 and 54?
Answer:
its 18 because 18 goes into 18 and 54. goes in 54 3 times
Step-by-step explanation:
The bowling team at Lincoln High School must choose a president, vice president, and secretary. If the team has 19 members, how many ways could the officers be chosen?
Answer:
Officers can be chosen in 5,814 different ways.
Step-by-step explanation:
Given that the bowling team at Lincoln High School must choose a president, vice president, and secretary, to determine, if the team has 19 members, in how many ways could the officers be chosen, the following calculation must be performed:
19 x 18 x 17 = X
342 x 17 = X
5.814 = X
Therefore, officers can be chosen in 5,814 different ways.
Determine the difference quotient for f(x)=−6x2−x+4
Answer:
Here 's the working for the questions
Step-by-step explanation:
Mark brainliest pls
Write the definition of "congruent" in your own words.
Answer:
The same shapes but flipped or turned.
Step-by-step explanation:
Answer:
the same shape and size but we allowed to flip slide or turn
hope this help
Someone help me pls
the answer is A
5^-8 × 5^4= 5^-8+4
= 5^-4
= 1/5^4
Mary wears an outfit everyday that consists of one top one bottom and one scarf.Her wardrobe consist of 3 bottoms 5 tops, and 2 scarfs. how many different outfits can Mary put together?
Answer:
30
Step-by-step explanation:
You simply just mutliply them
3*5*2=30
I NEED HELP WITH THIS RIGHT NOW!!
Kurt is training to run in a race. He recorded the distances and times of his trainings runs last week. On which day was the ratio of time to distance the greatest?
Answer:
c
Step-by-step explanation:
just derived everyone
find the value of x:)
Answer:
180 - 58 - 42 = x : sum of angles in a triangle add to 180
80 = x
Need help with school
Answer:
This is a test, please refer to the Academic Integrity and Honor Code
Need a quick response help me out
Answer:
-5 1/4
Step-by-step explanation:
-4 1/2 -3/4
= -4 2/4 -3/4
= -4 5/4
= -5 1/4
Answer:
-5 1/4
Step-by-step explanation:
1121 help44445555 ty
Answer:
B
Step-by-step explanation:
Please help me with this
Answer:
F
Step-by-step explanation:
with 5th, you are going to muliply the fraction by 20 to get the answer as a decimal/percent.
0.75=3/4
4/9=0.44 re
6.5=650%
Triangle Review 2.0 (Math i need help please)
Answer:
A= 30
Step-by-step explanation:
This requires several steps.
First, you need to find the 2 other missing angles.
One can be found easily by substracting 130 from 180
so 180-130 = 50
The other angle is the same as 8x+4
Now set up your equation
180=3x-6 + 8x+4 +50
180 = 3x + 8x -6 + 4 +50
180+6-4-50 = 11x
132 = 11x
132/11 = x
12 = x
Now plug in 12 for x in your angle A
A=3x-6
A=3 * 12 - 6
A=36 - 6
A= 30
PLEASE HELP EASY MATH!!!!
Please help it’s geometry will mark brainliest!
Answer:
its 216
Step-by-step explanation:
when it's one the edge the arc is double the angle
This recipe makes 20 cupcakes. Deepak only wants to make 15 cupcakes. How much of each ingredient does he need? Recipe: Makes 20 cupcakes 10 ounces butter 12 ounces sugar 8 ounces flour 4 eggs
Answer:
9.6 ounces of butter, 8 ounces of sugar, 12 ounces of flour, 4 eggs
Explanation: 20 / 16 = 4/5. 16 is four-fifths of 20. So multiply 4/5 with everything.
12 * 4/5 = 9.6 ounces
10 * 4/5 = 8 ounces
15 * 4/5 = 12 ounces
5 * 4/5 = 4 eggs
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Answer:
4
Step-by-step explanation:
1st: do 2x3=6 so if 1 6in scoop makes one pitcher of tea then you could make about 4 pitchers of tea because there are the volume of the pitcher of tea mix is 24in so 24/6=4