Answer:
69 plus 45 mius 450 equals 98
Can someone help me with this?
The possible answers are:
9.04
95.55
90.15
108.51
54.26
Thank you!!!
Answer:
108.51
Step-by-step explanation:
The speed of the current in a river 6 mph. A very operator who works top part of the river is looking to buy a new boat for his business. Every day, his route takes him 22.5 miles each way against the current back back to the dock, and he needs to make his trip any tour of nine hours. He has a bow in mind, but he can only test it on a leak where there is no current. How fast must the boat go on the lake in order for it to serve the ferry operators needs?
Answer:
9 mph
Step-by-step explanation:
Speed of current = 6 mph
Distance to travel one way = 22.5 miles
Let speed of the ferry be [tex]x[/tex] mph
Total time taken for round trip is 9 hours
One way the ferry will be going with the current and in the other way the ferry will be going against the current so
[tex]\dfrac{22.5}{x+6}+\dfrac{22.5}{x-6}=9\\\Rightarrow \dfrac{x-6+x+6}{x^2-36}=\dfrac{9}{22.5}\\\Rightarrow \dfrac{2x}{x^2-36}=0.4\\\Rightarrow \dfrac{2x}{x^2-36}-0.4=0\\\Rightarrow 2x-0.4x^2+14.4=0\\\Rightarrow 0.4x^2-2x-14.4=0\\\Rightarrow 4x^2-20x-144=0\\\Rightarrow x=\dfrac{-\left(-20\right)\pm \sqrt{\left(-20\right)^2-4\times 4\left(-144\right)}}{2\times 4}\\\Rightarrow x=9,-4[/tex]
So, the speed of the boat in still water needs to be 9 mph both ways.
The measures of the angles of a triangle are shown in the figure below. Solve for x.
(8x-9)°
63°
70°
Answer:
x= 7
Step-by-step explanation:
Theorem: The sum of the angles of a triangle is 180
Memorize that theorem
8x - 9 + 63 + 70 = 180
8x + 124 = 180
8x = 56
x= 7
please help!
find the value of x in the isosceles triangle shown below.
4
6
Answer:
B
Step-by-step explanation:
Pythagorean theorem:
6^2 + (4/2)^2 = x^2
36 + 4 = x^2
40 = x^2
x = [tex]\sqrt{40}[/tex]= [tex]2\sqrt{10}[/tex]
Answer is B
Answer this........Please
Answer:
x -22
Step-by-step explanation:
Sum = -7 (-22+15 = -7)
Product = -330 (-22*15 = -330)
Factors = -22 , 15
x² - 7x - 330 = x² +15x - 22x - 22 *15
= x(x + 15) -22(x + 15)
= (x +15)(x -22)
[tex]\frac{x^{2}-7x-330}{x + 15}=\frac{(x+15)(x-22)}{(x+15)}\\\\ =x - 22[/tex]
Write (2x – 1) (3x – 1) in standard form.
Answer:
6x^2-5x+1
Step-by-step explanation:
Use the foil method:
multiply 2x with 3x and -1.
then multiply -1 with 3x and -1
when multiplied, you should have gotten 2x×3x=6x^2, then 2x×-1, then -1×3x=-3x, then you put all of the answers in order from variables with exponents to normal variables to non variables
Joe works for a charity. Each year the charity gives money to different projects. The charity has a total of eight thousand nine hundred and sixty-eight pounds to give to the projects this year.
Answer:
[tex]Each =\pounds 1121[/tex]
Step-by-step explanation:
See comment for complete question.
Given
[tex]Total = \pounds 8968[/tex]
[tex]Projects = 8[/tex]
Required
Determine the amount allotted to each
From the question, we understand that each project gets each allocation.
So, the amount of each is:
[tex]Each =\frac{Total}{Projects}[/tex]
[tex]Each =\frac{\pounds 8968}{8}[/tex]
[tex]Each =\pounds 1121[/tex]
Each project gets £1121
math question again plz help
answers are:
6, 8, 5, 11
If the perimeter is 3(2v-6)
Than
Pull out like factors : 2v - 6 = 2 • (v - 3)
Final result : 6 • (v - 3)
Given the result your answer would be 6.
In Greenville, the library is 8 miles due east of the post office and the zoo is 6 miles due south of the library. What is the distance from the post office to the zoo?
Answer:
10 miles
Step-by-step explanation:
Which systems of equations have infinite solutions
2x+y 31
+ y = 18
2x+y 10
изу +7
y 14 - 2x
0x3y12
y 13 - 2
1x 3.10
2x + y 14
X 13 - 2y
2x+y 17
Ox3y - 61
The kindergarten teachers bought fruit flavored juice boxes for their End-of-Year party. Each individual juice box contains 225 milliliters of juice. Each package contains 8 boxes. There are 1,000 milliliters in 1 liter.
Answer:
5,000000
Step-by-step explanation:
so imultiplyied
Write a real life scenarlo that can be represented by the integer -55
Answer:
I deposit $500 in my bank from my check this week. I have to withdraw $550 from my bank to pay my medical bills. I am short -55/55 dollars so I wait to pay my medical bills.
I owe $60 to my school for damage on a school laptop. I only have $5 so I am 55 dollars short.
I withdraw $2,000 from my bank to deposit $1950 a week later. I want to deposit the same amount of money I put last week. I am short 55 dollars.
Step-by-step explanation:
I put different scenarios because I didn't know if any of them were good enough.
Find the sum of the arithmetic sequence.
-10, -7, -4, -1, 2, 5, 8
Answer:
s7= -7
Step-by-step explanation:
16. A cellphone family plan costs $49 per month plus $.05 per text. Write an equation for the monthly bill b when t texts are sent.
Please solve quickly 11-14
Answer:
Step-by-step explanation:
11). 6x + 3y = 9
3(2x + y) = 9
2x + y = 3
y = -2x + 3
Since variables are of single degree therefore, it's a linear function
12). 3y - 2x = -2x - 12
3y - 2x + 2x = -2x - 12 + 2x
3y = -12
y = -4
Since variable y is of single degree therefore its a linear function.
13). 11y + 4x = -8 + 11y
11y + 4x - 11y = -8 + 11y - 11y
4x = -8
x = -2
Linear function.
14). 4x - 3 + 2y = 8x - 9
4x + 2y - 3 - 4x = 8x - 4x - 9
2y - 3 = 4x - 9
2y = 4x - 9 + 3
2y = 4x - 6
y = 2x - 3
Linear function.
A father is 20 years older than his son. Five years ago,he was three times as old as his son was.Find their present ages
Answer:
Dad=35, Son=15
Step-by-step explanation:
Well since the dad is 20 year older then the son we can call the son x and the dad x+20. Now five years ago the father was 3 times older then the so we construct the following equation:
x+20−5=3(x−5)
x+15=3x-15
x=15
So now we know that the sons age is 15 meanimg that since the dads 20 years older then him, his age is 20+15 which is 35!
oof oof oof I need help again lol
Answer:
The first one is 0.6
The second one is -2.8
The third one is -3
Step-by-step explanation:
Have a nice day! :)
I need help 911!!! I need thisss
WILL MARK BRAINLIEST TO THE FIRST PERSON!!!!!
Answer:
3.9
Step-by-step explanation:
3.98371685
what should be added to
11/21 to make it
19/21
To find what needs to be added subtract the two numbers:
19/21 - 11/21 = 8/21
You need to add 8/21 to 11/21 to get 19/21
2. Use the equation 3x + 4y = 2.
a) Write another equation that will create a linear system
with each number of solutions.
i)
ii) one
üü) infinitely many
none
Verify your answers for part o)
b)
Answer:
x= −4 /3 y+ 2/ 3
Step-by-step explanation:
46−[38−{27−(15−13−2¯¯¯¯¯¯¯¯¯¯¯¯¯)}]
=
Answer:
46-38-27-15+13+2
=-17
pls help me with this ! thank you :)
Answer:
2 is the correct answer
hope this will help you
Need help don’t like math help
Answer:
50.65 grams
Step-by-step explanation:
Answer:
Step-by-step explanation:
Total amount of salt = 38.1 + 12.55 = 50.65 grams
38.10 +
12.55
50.65
Solve for x. (Round to the nearest tenth)
Answer:
13.7
Step-by-step explanation:
fill the numbers in using pythagorean theory
[tex]a^{2} + b^{2} = c^{2}[/tex]
(the hypotenuse has to be [tex]c^{2}[/tex])
[tex]9.2^{2} + b^{2} = 16.5^{2}[/tex]
[tex]84.64 + b^{2} = 272.25[/tex]
[tex]b^{2} = 187.61[/tex]
(to get [tex]b[/tex] alone you have to find the square root of both sides)
[tex]b = 13.69707[/tex]
round that and you get
[tex]b = 13.7[/tex]!
What is the measure of ZXYZ?
113*
A
37"
Z
A. 38°
B. 56.5°
C. 760
O.
D. 75°
Answer:
C
Step-by-step explanation:
The solution is, the measure of ∠ZYC is 108 degrees.
What is an angle?In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.
here, we have,
Given:
m∠XYZ = 72 degrees
m∠XYZ and m∠ZYC form a linear pair.
Let's find the measure of ∠ZYC.
To find the measure of angle ZYC, apply the Linear Pair of Angles theorem which states that the sum of angles that form a linear pair is 180 degrees.
Hence, we have:
m∠XYZ + m∠ZYC = 180
72 + m∠ZYC = 180
• Subtract 72 from both sides:
72 - 72 + m∠ZYC = 180 - 72
m∠ZYC = 180 - 72
m∠ZYC = 108 degrees.
Therefore, the measure of ∠ZYC is 108 degrees.
ANSWER:
C. 108°
To learn more on angle click:
brainly.com/question/28451077
#SPJ7
Complete question:
If ZXyz and ZZYC form a linear pair and the measure of ZXYZ is 72°, whatis the measure of ZZYC?O A. 28°B. 18°C. 108°D. 72°
What’s 3% of 4000 and how u find it
Answer:
First write it as 0.03 × $4,000. Then multiply 3 × $4,000 = $12,000. Lastly put the decimal point where it gives the answer two decimal digits: $120.00.
Step-by-step explanation:
Answer:
3% of 4,000 = 120.
Step-by-step explanation:
To find the answer we have to divide 3 by 100, which equals 0.03. Now multiply 0.03 by 4,000 and we get 120. Therefore, 120 is our answer.
The first terms in the sequence are 1,4, 9, 16 ... what’s the next term in the pattern?
Answer:
25, 36, 49
Step-by-step explanation:
4 - 1 = 3
9 - 4 = 5
16 - 9 = 7
25 - 16 = 9
36 - 25 = 11
49 - 36 = 13
It goes up by odd numbers
Can someone please help me k(x) = 4x2 + 1; k(-3)
Answer:
37
Step-by-step explanation:
k(x) = 4x2 + 1
[tex] = 4( - 3) {}^{2} + 1 \\ 4(9) + 1 \\ 36 + 1 \\ 37[/tex]
What is
5
6
−
3
8
?
A.
1
3
B.
9
16
C.
1
12
D.
11
24
5/6 - 3/8
Rewrite the fractions to have a common denominator:
5/6 x 4 = 20/24
3/8 x 3 = 9/24
Now you have 20/24 - 9/24 = 11/24
The answer is D. 11/24
Answer:
D. 11/24
Step by Step Explanation:
Just use cymath.