Answer:
x = -3 2/3
Step-by-step explanation:
Given the simultaneous equations;
3 x + 7 y = 31 ..... 1
-3x - 2y = -1 ..... 2
Add both expressions
7y - 2y = 31-1
5y = 30
y = 30/5
y = 6
Substitute y = 6 into equation 2
From 2;
-3x - 2y = -1
-3x - 2(6) = -1
-3x - 12 = -1
-3x = -1 + 12
-3x = 11
x = -11/3
x = -3 2/3
Hence the value of x is -3 2/3
Answer:
x = -3 2/3
Step-by-step explanation:
Solve for n.
-53 + n = -28
A. -35
B. 25
C. -25
D. 35
Answer:
B. 25
Just use Photomath in those questions
Answer:
B) N=25
Step-by-step explanation:
the distance between -53 and -28 is positive 25
Tameka pilots a hot air balloon. She lowers the balloon
five times, going down an equal distance each time. In
all, Tameka lowers the balloon 75 m.
What integer represents the change in the hot air
balloon’s elevation each time Tameka lowers it?
What does this integer tell you?
Answer:
15 m
Step-by-step explanation:
Given that :
Change in distance is the same each time Ballon is lowered ;
Number of times Ballon is lowered = 5 times ;
Total change in distance = 75 m
Change in distance per time lowered equals ;
(Total change in elevation / Numbe rof times Ballon is lowered)
75m / 5
= 15 m
Hence, Ballon height changes by 15 m each time it is lowered.
The integer gives the lowering rate.
what is the area of this circle pls help
Answer:
answer is 113.04 [tex]cm^{2}[/tex]
Step-by-step explanation:
math test, ill mark brainliest if correct !
I don't know the second one sorry but the first one is 92. Plug -4 in for x and you get 92
Answer:
f(-4) = 3×(-4×-4) - 10 ×(-4) + 4
= 3×16 + 40 + 4
= 48 + 44
= 92
what is x?
-5 (x - 1) = 40
Answer:
x= -7
Step-by-step explanation:
have a good day
Step-by-step explanation:
- 5 (x - 1) = 40(Multiply -5 by the values in the bracket)
-5x + 5 = 40(Subtract 5 on both sides)
-5x = 40 - 5
-5x = 35 (Divide both sides by -5)
x=-7
what is the value of x and y?
Answer:
y=70 x=20
Step-by-step explanation:
Answer:
The x-intercept is found by finding the value of x when y = 0, (x, 0), and the y-intercept is found by finding the value of y when x = 0, (0, y).
Step-by-step explanation:
x y = x + 2 Ordered pair
0 0 + 2 = 2 (0, 2)
1 1 + 2 = 3 (1, 3)
2 2 + 2 = 4 (2, 4)
this is probably not right but i gave an an example
:)
For A and B, use the indicated operations to find the answer
Step-by-step explanation:
Your question is not well understood
If there's a three day rain forecast for the probability of rain , 70% Friday, 70% Saturday, 70% Sunday A) work out the probability that it will rain on all three days B) work out the probability that it will rain on exactly two consecutive days
Answer:
a) 34.3%
b) 49%
Step-by-step explanation:
In order to find the probability of a sequence of events, we need to multiply each individual probability by the others in decimal form. Therefore, we need to turn these probabilities into decimal form by dividing them by 100 like so..
70% / 100 = 0.70
Now we multiply all of them together and multiply the product by 100 to get the percentage.
0.70 * 0.70 * 0.70 = 0.343
0.343 * 100 = 34.3%
34.3% is the probability of it raining on all three days. Now to find the probability of it raining on two consecutive days we do the same but multiply only 2 probabilities
0.70 * 0.70 = 0.49
0.49 * 100 = 49%
What is the difference between a service charge and a finance charge?
A) A service charge is a fee which must paid every month, while a finance charge is a one-time fee assessed at the beginning or end of a loan period.
B) A service charge is a flat fee charged to a borrower, while a finance charge is a fee charged to a borrower based on the amount borrowed.
C) A service charge is a fee assessed by a lender, while a finance charge is a fee charged by a financial institution, such as a bank.
D) A service charge is a fee assessed by a lender other than interest, and a finance charge is the total of the interest paid on a loan and the service charge.
Please EXPLAIN work in detail, Thank You!
Answer:d
Step-by-step explanation: because that’s the answer
D) A service charge is a fee assessed by a lender other than interest, and a finance charge is the total of the interest paid on a loan and the service charge.
According to accounting and finance terminology, the finance charge is the total fees that you pay to borrow the money in question. This means that the finance charge includes the interest and other fees that you pay in addition to paying back the loan.
Shelby sold 75 raffle tickets for the school fundraiser over a 3-year period. If Kelly sold 15 less tickets than Shelby over the last 3 years, how many did Kelly sell each year on average?
Answer: 20 tickets
Step-by-step explanation:
From the question, we are informed that Shelby sold 75 raffle tickets for the school fundraiser over a 3-year period while Kelly sold 15 less tickets than Shelby. This means that the number of tickets sold by Kelly is:
= 75 - 15
= 60 tickets
The number of tickets sold by Kelly each year on average will be:
= Number of tickets sold / Number of years.
= 60/3.
= 20 tickets
over the last 3 years
For the trinomial x^2-11x+10 determine if the factors of c will will be both positive, both negative, or opposite signs.
Answer:
Two negatives
Step-by-step explanation:
I'm assuming by 'factors of c' you mean factors of the last term. For the entire trinomial, we know that there are two negative signs. To be able to get a negative 11x and then a positive 10, we would need two negatives, since two negatives equal a positive. Hope that helps!
Consider this quadratic equation:
2x2+1x+3=0
Comparing it to the standard form, name a, b, and c
a=
b=
C=
Explanation: The value for a comes from the coefficient
on the x² term which in this case is 2 so we say that a = 2.
The value for b comes from the coefficient on the x term
which in this case is 1 so we say that b = 1.
The value for c comes from the constant term
which in this case is 3 so we say that c = 3.
Can you help me!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
B. Lease
Step-by-step explanation:
Cash has value
A vehicle has value
A house has value
But a lease itself does not have value
Asset is something you own that has value
Hope this helped!
Have a supercalifragilisticexpialidocious day!
1) Click on the measurement that is equal to 24 kilograms.
+) 240 grams
2,400 grams
24,000 grams
240,000 grams
Answer:
24,000
Step-by-step explanation:
Answer:
24,000
Step-by-step explanation:
Every kilogram is 1,000 grams
Find the value of a5, given the sequence defined as: a1 = 32 an = (1/2)an-1
Answer:
a5 = 2
Step-by-step explanation:
If a1 = 32,
a1 = 1/2 a0 = 32
a0 = 64
With that, we know that
a0 = 64,
a1 = 32
so, a2 is definitely 16. From that, we may know the formula,
an = a0 (1/2)^n
a5 = a0 (1/2)^5
a5 = 64 (1/32)
a5 = 2
HELP PLEASE I WILL MARK BRAINLIEST
She ran 13.04 seconds per 100 meters, how fast was she running in meters per hour?
Answer:
27607.3619632 meters per hour
Step-by-step explanation:
She was running 7.6 m/s 3600 seconds in a hour
3600x7.6=27607.36
Part ?? of i need these
Answer:
You already have the answer so ima just get the points
Have a good night
WHOEVER ANSWERS CORRECTLY I WILL MARK BRAINLIEST!!
Answer:
Area = 342[tex]cm^2[/tex], Perimeter = 22.79 cm
Step-by-step explanation:
First, divide the shape into 3:
An arc, a square, and a triangle.
Dimensions of shapes:
Arc:
Degree = 40°
Arms = 4 cm
Square:
All sides are 4 cm
Triangle:
base = 3 cm
height = 4 cm
hypotenuse = 5 cm
To get perimeter:
Arc length = [tex]\frac{40}{360} * (2*\pi * (4))[/tex] (4 is the arm length ) = 2.7925 cm
Arc arm = 4 cm
Square sides (only two are outside) = 2 * 4 = 8 cm
Triangle (only hypotenuse and base are outside) = 5 + 3 = 8 cm
So total perimeter is 2.7925 + 4 + 8 + 8 = 22.79cm
To get area:
Arc area (the pizza shape) = [tex]\frac{40}{2\pi } * \pi * (4)^{2}[/tex] (4 is the arm length) = 320 [tex]cm^{2}[/tex]
Square area = side * side = 4 * 4 = 16 [tex]cm^{2}[/tex]
Triangle = (1/2) * base* height = (1/2) * 3 * 4 = 6[tex]cm^{2}[/tex]
So total area is 320 + 16 + 6 = 342[tex]cm^2[/tex]
Answer:
Area=27.58 cm^2
Perimeter =22.29cm
Step-by-step explanation:
The shape consists of a sector and a trapezium
For area= area of sector +area of trapezium
[θ/360*πr^2]+[1/2(a+b)h]
[40/360*3.14*4^2]+[1/2(4+7)4]
5.58+22
27.58cm^2
For perimeter = perimeter of sector +perimeter of square +perimeter of triangle
[θ/360*2πr]+[4s]+[1/2(a+b)]
[40/360*2*3.14*4]+[4*4]+[1/2(4+3)]
2.79+16+3.5
22.29cm
can someone help me?
Answer:
Yes
Step-by-step explanation:
Use the method [tex]\frac{rise}{run}[/tex].
Answer:
Yes
Step-by-step explanation:
The relationship between y and x is:
y=1/4x, because when
x=4, y=1
x=8, y=2
x=12, y=3
x=16, y=4
HELP FAST I'LL MARK YOU BRAINLIEST What is an equation of the line that passes through the point (−2, 3) and is perpendicular to the line whose equation is y = 3/2( x ) − 4?
Answer: y = -2/3x + 5/3
Step-by-step explanation:
The slope of a perpendicular line is opposite reciprocal --> -2/3Using point given (-2, 3), find b.3 = -2(-2/3) + b3 = 4/3 +b5/3 = bplease answer tysmmmmmmmmm
i need two more , i got 1
Answer:
X=12,-4
Step-by-step explanation:
Set them equal to each other to get x^2=8x+48. Then move them both to the other side to get x^2-8x-48. Then factor the expression to get (x-12)(x+4). Set that to 0 to get x=12 and x=-4
Hi am new. What do I do
Answer:
You can add your question to your question or add a picture to it.
Step-by-step explanation:
Answer: you ask questions and answer stuff like the way I’m doing oh and welcome :’
Step-by-step explanation:
Your mother takes you to your grandparents' house for dinner. She drives 60
minutes at a constant speed of 40 miles per hour. She reaches the highway,
quickly speeds up, and drives for another 30 minutes at constant speed of 70
miles per hour. How far did you and your mother travel altogether?
Your answer
Answer:
75 Miles
Step-by-step explanation:
Which equation describes the line with slope 5 that contains the point (-2,4)?
A. y= 5x +4
B. y = 5x-22
C. y - 5x + 14
D. y = 5x-2
Answer:
C. y=5x+14
Step-by-step explanation:
Solve using this formula: y=mx+b
4 = (5) (-2) + b
4 = -10 + b
+10 +10
14 = b
Then you will plug in what you found for b in:
y=5x+14
Am I the only one here that is having a huge problem with Geometry?
Answer:
18y+30y+14y+150°+142=540
62y+292=540
subtract 292 from both sides
62y= 248
divide 62
y=4°
Are these correct?? I need help quick!!!
Answer:
No, it is A for the first question and C for the last one
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
1/9= .111111111111 repeating
* URGENT * Given f(x) = 6(2-x), what is the value of f(-8)?
open ended question
Answer:
f(-8) = 60Step-by-step explanation:
When we are given a function in this format, we substitute the x value in the equation. F(x) is simply another way of saying y.
if x = -8
6 (2 - -8)
6(10)
60
f(-8) = 60Plllllllllllllllllllllllzzzzzzzzzzzz help me out I’m confused 25 points
Answer:
-1+-6=-7
Step-by-step explanation:
Answer:
-1 + (-6) = -7
Step-by-step explanation: