Answer:
4x-y=19, y=4x-19
Step-by-step explanation:
I learned a really quick way to do these in geometry.
Let's use standard form or ax+by=c.
Slope of 4: 4x - y = c.
Passes through point 6,5.
4(6) - 5 = c
c= 24-5
c=19
4x-y=19
y=4x-19
✨ Easy points if your good at slope ✨
6w = 21
Solve for w
Please show steps
Answer:
w=21/6
w=3.5
Step-by-step explanation:
I hope it's helps you
Principal = $2,400
Rate = 4%
Time = 30 months
Answer:
$240
Step-by-step explanation:
I = prt
I = (2,400) (0.04) (2.5)
note: I changed 4% to a decimal and 30 months to 2.5 years
I = 96 (2.5)
I = 240 <-- The interest
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The simple interest accumulated on a principal of $ 2,400.00 at a rate of 4% per year for 2.5 years (30 months) is $240.00.
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* Last time I did interest was in 6th grade and I don't remember much. So I am very sorry if my answer is wrong *
Given y = 2(x-3) and a domain of (-3,-2 and 5). Find the range.
will give brainliest
A worker at a clothing store earns a 15% commission on a sale of $75.00 (whole). How much is the commission? The 15% commission of $75 will be _____
Answer:
Step-by-step explanation: The commission will be a total of $11.25.
the commission would cost $11.25
-3x + 5.5x + 4 = 7.2
Answer:
1.28
Step-by-step explanation:
x = 1.28
if y=3 then 14y equals
Answer:
42
Step-by-step explanation:
14(3)
Answer:
42
Step-by-step explanation:
first, substitute 3 for y in 14y. 14y means you are multiplying 14 and y, so when you plug in 3 for y, you're multiplying 14 and 3! :)
14y ⇒ 14(3)simplify by multiplying 14 · 3.
14(3) = 42so, when y = 3, 14y = 42.
you can check the answer by solving for y in 14y = 42.
divide both sides of the equation by 14.
14y/14 = 1y or y42/14 = 3after dividing, you're left with y = 3. that means 14y does indeed equal 42 when y = 3! :)
i hope this helps! have a great rest of your day <3
When building a house, the number of days required to build is inversely proportional to with the number of workers. One house was built in 147 days by 4 workers. How many days would it take to build a similar house with 42 workers?
Answer:
14
Step-by-step explanation:
[tex]147 \times 4 \div 42 = 14[/tex]
It would take 14 days to build a similar house with 42 workers
What is the fundamental principle of multiplication?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
We are given that the number of days required to build is inversely proportional to with the number of workers.
One house was built in 147 days by 4 workers.
So,
147 x 4 = 588
Now the days to build a similar house with 42 workers
588/ 42 = 14
Learn more about multiplications;
https://brainly.com/question/14059007
#SPJ2
pls help
Solve the following system of equations for x using elimination:
4x + y = 2
x - y = 3
-2.
3
The diagram shows a 6 ft student standing near a tree. The shadow of the student and the shadow of the tree ends at point A. What is the height of the tree?
Answer: 18ft
Step-by-step explanation: I took the quiz and got 100%
The height of the tree is 8.3 ft.
To solve this problem, we have to find the angle of elevation from the student.
To do this, we have to assume or bring out a right angle triangle and solve for the.
Given that we have the distance of A to F and the point to F
A to F = 5ftE to F = 6angle ?Trigonometric RatioUsing trigonometric ratio,
We can find the tangent of this angle
[tex]tan\theta = \frac{opposite}{adjacent} \\tan\theta = \frac{6}{5}\\ tan \theta = 1.2\\\theta = tan^-^1(1.2)\\\theta = 50.2^0[/tex]
The angle of elevation can be calculated using sum of angles in a triangle is equal to 180 degrees
[tex]180 = 90 + 50.2 + x\\x = 180- 140.2\\x = 39.8^0[/tex]
Assuming a right angle triangle from the point the student is standing, the distance from him to the tree would be
[tex]15 - 5 = 10ft[/tex]
Let's use the tangent of the angle to find the height of the tree.
[tex]tan\theta = \frac{opposite}{adjacent} \\tan 39.8 = \frac{x}{10}\\x = 10 tan39.8\\x = 8.3ft[/tex]
From the calculations above, the height of the tree is 8.3 ft.
Learn more on trigonometric ratio here;
https://brainly.com/question/10417664
Hue is arranging chairs. She can form 2 rows of a given length with 3 chairs left over, or 5 rows of that same length if she gets 15 more chairs. Complete the equation and solve it to find how many chairs are in that row length. In your equation, use the variable x to represent the number of chairs in each row.
Answer:
X=4
Step-by-step explanation:
2x+3=5x+15
2x-5x=15-3
-3x=12
-3x/-3 = 12/-3
X=4
me need help on math plz help
Answer:
4 ;)
Step-by-step explanation:
78/75=1.04
Answer:
It would be A
explanation:
the reson why it is A because it is closest to 3%
your welcome
HELP!!! Please I have a timer
Can y'all help me with this
4(-W +8) I need help please.
Answer:
4(-w+8)
Step-by-step explanation:
-4w+32
32dividedby-4
w=-8
Helppp meee pleaseee
Answer:
I'm not sure sorry if I'm wrong but I think the answers would be 3,4,5
This will probably be the last one today so yeah help
Answer:
A = 974
Step-by-step explanation:
The formula for surface area of a rectangular prism is A=2(wl+hl+hw)
so yeah enjoy freedom for the rest of the day
Answer:
974 inches2
Step-by-step explanation:
Surface Area = 2×(11×8 + 11×21 + 8×21) = 974 inches2
Can somebody help???
Answer:
first box - 2.10
second box - 2.14
Answer:
2.10 & 2.14
Step-by-step explanation:
its basic adding by 2 yk
Can someone help me please?
Answer: Hi
Step-by-step explanation:
The answer is b
Tanijah paid $4.00 for 5 organic peaches. How much did she pay per peach?
Answer:
80 cents i think if i did my math right
Step-by-step explanation:
80 times 5 is 400
Which linear equation is represented by the table? Please help me, I really don’t understand, thank you so much!!
Answer:
C) y=x+3
Step-by-step explanation:
I did it and got it right
Can somebody help. Will mark brainliest.
Answer:
12/20
Step-by-step explanation:
Cos is adjacent/hypotenuse. 12 is adjacent to angle C and 20 is the hypotenuse. 12/20 is the cosine of C.
The number of candies in a large bag of M&M decreased by 25% between
last year and this year. Last year there were 60 pieces of candy inside each
of these bags. What is the candies inside the bag this year?
Answer:
the answer is 45 candies in the bag this year.
Step-by-step explanation:
60×.25=15
60-15=45
The sum of three consecutive numbers is
42. Find the largest number in the set
Answer:
20
Step-by-step explanation:
Well consecutive numbers mean that the 3 numbers will follow each other in smallest to largest.
Example : 6, 7, 8 or 6,34,87
Non-Example : 7, 9, 6
As long as the number is greater than the one before it they are consecutive.
Following this rule I have come up with the numbers :
10, 12, 20
These three numbers are consecutive and equal to 42.
Now to find the largest number in this set just look at the greatest value which would be 20.
I don't have an entire explanation for this as I just did it in my head but I do hope it is correct.
I hope this helps! :)
find the measure of angle A
Answer:
35 degrees
Step-by-step explanation:
Sum of angles inside a triangle is 180 degrees.
Right angle is 90 degrees.
180 = 90 + (x + 46) + (x + 66) = 2x + 202
x = -11
A = x + 46 = -11 + 46 = 35
Which line has a slope of -1/2? Line a, line b, line c, line d
Answer: a
Step-by-step explanation:
Answer:
line d
Step-by-step explanation:
Luis takes advantage of a local movie theaters option to have subscription based admission.Luis pays a monthly fee every month and can see as many movies as he would like.Examine the graph shown below.
Enter the total amount of money Luis will have spent after 8 months of subscribing to this service?
Answer:
The answer is 60 dollars, that's what I got
complete the algebra terms with table and graph given y = 2x +3
A car wash detailed 273 cars in 7 hours. At what rate did the car wash detail cars in cars per hour?
Answer:
39 cars/hour
Step-by-step explanation:
We are trying to find the rate of cars/hour. So we need to divide the amount of cars by the amount of hours.
273/7 = 39
The wash detailed cars at a rate of 39 cars per hour.
A right triangle has legs measuring 5 feet and 12 feet. If the legs of the triangle were doubled, what would be the difference in the original and enlarged perimeters?
Answer:
[tex]30[/tex]
Step-by-step explanation:
1. Approach
First, use the Pythagorean theorem to solve for the hypotenuse of the given right triangle. Then find the perimeter by adding up the values of all the sides. The problem then has the lengths of the legs doubled. When the legs undergo a scaling factor, the hypotenuse and perimeter undergo the same scaling factor. Here, the legs are doubled, hence the hypotenuse and the perimeter are also doubled. Finally, subtract the new perimeter from the original perimeter.
2. Find the original hypotenuse
Remember the Pythagorean theorem states;
[tex]x^{2}+y^{2}=z^{2}[/tex]
Where (a) and (y) are the legs (or the sides adjacent to the right angle), and (z) is the hypotenuse or the side opposite to the right angle.
Substitute in the given value and solve,
[tex](5)^{2}+(12)^{2}=z^{2}\\\\25 + 144 = z^{2}\\\\169=z^{2}\\\\\sqrt{169}=z\\\\13=z[/tex]
3.Find the perimeter of the original triangle
To find the perimeter of a polygon, one must add up the lengths of all the sides.
[tex]5 + 12 + 13\\\\= 30[/tex]
4. Find the new perimeter
In a right triangle, when both legs undergo a scaling factor, the hypotenuse also has the same change, and the perimeter also undergoes the same change. In this case, the length of the legs is doubled, therefore, the hypotenuse and the perimeter are also doubled.
New hypotenuse; [tex]26[/tex]
New perimeter; [tex]60[/tex]
5. Find the difference
Now all that is left is to subtract the new perimeter from the original perimeter;
(New_perimeter) - (original_perimeter)
= [tex]60 - 30[/tex]
= [tex]30[/tex]