Answer:
3x
Step-by-step explanation:
If Kapila's age =x.
Then Sasha's age would be =2x.
Their total age would be 3x.
Because 2x+x adds up to be 3x.
Use linear combination to solve for x and y.
2x+4y=-4
3x+5y=-3
Dautienbanchuyenvexophuongtrinhthu1saudothevaophuontrinhthu2,thuchiencacbuoc
chuyenvedoidaularaketquanhe
Use the parabola tool to graph the quadratic function f(x)=−(x−2)2+4.
Answer:Use demos it could give you the answer
Step-by-step explanation:
Corey and Courtney are 210 feet apart when they start walking toward one another. Courtney walks twice as fast as Corey so whenever Corey travels
x
feet, Courtney travels
2
x
feet. Let
x
represent the number of feet Corey has traveled since he started walking toward Courtney.
Write an expression in terms of x to represent the distance (in feet) between Corey and Courtney.
Answer:
210 - 3x
Step-by-step explanation:
Which square root is between 4 and 5
10
14
24
32
They are divided by the way
Write an equation of the direct variation that includes the point (9, –12).
(A.) y = 1 1/3x (B.) y = - 1/12x (C.) y = 1 1/3x (D.) -3/4x ...?
Answer:
I think you have a typo in you choices...
y = -4/3 x is the answer...
which is the same as y = - 1 1/3 x
you don't have that choice, "A" and "C" are the same..
I think that one of them is "y = - 1 1/3 x "
y = kx
-12 = k 9
k = -12/9 = -4/3
Step-by-step explanation:
write the point-slope form of an equation of the line through the points (6,-1) and (5,7)
Answer:
y - 7 = -8 (x - 5)
Step-by-step explanation:
y2 - y1 / x2 - x1 7 - (-1) / 5 - 6 = -8
y - 7 = -8 (x - 5)
how do i work out the shaded area??
help!!!!
Answer:
Step-by-step explanation:
Remark
The method you would use is
find the area of the rectanglefind the area of the left trianglefind the area of the right triangleSubtract the two triangle's areas from the area of the rectangle.Area of the rectangle
Area = L * W
L = 3 + 14 = 17
W = 6
Area = 6 * 17 = 102
Area of Left triangle
H = 6
B = 3
Area = 1/2 * B * H
Area = 1/2 * 3 * 6
Area = 9
Area of the triangle on the right
H = 6
B = 17 - 7 = 10
Area = 1/2 * b * h
Area = 1/2 * 6 * 10 = 30
Area of the two triangles = 39
Area of the green area = 102 - 39 = 63
the additive inverse of 5/9 is
Answer:
- 5/9
Step-by-step explanation:
The additive inverse can be broken down. Additive means we are adding something to it. Inverse means the opposite. Combined, it would be saying we are adding the opposite. The opposite of 5/9 would end up being -5/9, as when added together the sum is 0.
What is the multiplicative rate of change of the
exponential function shown on the graph?
81
2,
4
0
16
1
A
12
4
AN
8
1.
NI
-2.
2
-1.
9
x
(0,1)
1
-3 -2
-1
N
3
Answer:
The answer for thue would happened to be 2
-1.
Answer:
9/2
Step-by-step explanation:
To the nearest degree, find the measure of angle A?
Answer:
I would say 26 or 42 but i would o with 26
Step-by-step explanation:
Answer:
26
Step-by-step explanation:
[tex]arccos\left(\frac{18}{20}\right)[/tex] = 25.8
Samantha found a great deal on sweatshirts at the mall and bought 5 sweatshirts at the
Super Duper sale price. Allison went the next day, but the sale was over, so she only bought
2 sweatshirts and paid $30 more per sweatshirt than Samantha. If the total cost of all 7
sweatshirts was $340, how much did one sweatshirt cost at the Super Duper sale price?
Answer:
$40
Step-by-step explanation:
You have two sweatshirts that cost $30 more the day after.
First, you do [tex]340 -(2*30)[/tex]
Second, you divide what you got above ($280), by 7 and voila, you have $40 per sweatshirt.
Which one of the following sets is real numbers?
A. |x| = -1
B. |x| < -1
C. |x| > -1
what is the solution to the system of equation below y=2/5x-3 and X=_10
Answer:
read explanation
Step-by-step explanation:
since y=2/5x-3 we substitute x=10 in making it y=2/5*10-3
following PAMDAS we do multiplication first so 2/5*10=4.
so y=4-3 and then we subtract and get y=1. Hope this helps:> if you need more explanation message me. If not give this a heart for helping. Good luck.
Which of the following statement is false?
a. all real numbers are complex numbers.
b. all irrational numbers are real numbers.
c. all complex numbers are pure imaginary numbers.
d. all whole numbers are rational numbers
Answer:
c not all complex are imaginary
but all imaginary are complex
please brainlist
Answer:
C is False
Step-by-step explanation:
A complex number is represented by
[tex]z = a + bi[/tex]
A imaginary number is represented by
[tex]z = bi[/tex]
A complex number could include a real number so it cant be a pure imaginary number so C is False.
SOMEONE HELP ME PLEASE
Answer:
3/5 * 3/5 = 9/25 = .36 = 36%
Step-by-step explanation:
help asap answer ----------------
Answer:
[tex]f^-^1(f(3.14))=3.14[/tex]
[tex]f(f(-7))=5[/tex]
Step-by-step explanation:
Hi there!
[tex]f^-^1(f(x))=x[/tex]
Therefore, [tex]f^-^1(f(3.14))=3.14[/tex]
[tex]f(f(-7))[/tex]
The table tells us that f(-7) is equal to -12.
[tex]f(-12)[/tex]
The table also tells us that f(-12) is equal to 5.
[tex]5[/tex]
I hope this helps!
Find the sum of 5x+y and (2xy + xy).
Answer:
6x^2y+2xy^2
Step-by-step explanation:
5x^2y + (2xy^2 + x^2y).
Combine like terms
6x^2y+2xy^2
[tex]\displaystyle\ \Large \boldsymbol 5\underline{x^2y}+2xy^2+\underline{x^2y}=5x^2y+x^2y+2xy^2=\boxed{6x^2y+2xy^2}[/tex]
Factorize : x⁴ -625
please answer
( − 5 ) ( + 5 ) ( 2 + 2 5 )
Evaluate (7.1x 10³)+(4.6 x 10⁶)²
Give your answer in standard form to 3SF
Answer:
2.12x10^13 is what I got
The perimeter of an iPad Air is 820 mm. Its length is 100 mm less than twice the
width.
If x = the length of the iPad Air and y = the width of the iPad Air, the linear system of
equations that could be used to model this situations is,
2x + 2y = a
bx = cy-d
The value of a is:
A The value of b is:
A The value of c is:
Ą The value of d is:
1
Answer:
a = 820, b = 1, c = 2, d = 100
Step-by-step explanation:
Let x represent the length of the iPad Air and y represent the width of the iPad Air. Since the perimeter of an iPad Air is 820 mm, hence:
2(length + breadth) = 820
2(x + y) = 820
2x + 2y = 820 (1)
Also, the length is 100 mm less than twice the width. Therefore:
x = 2y - 100 (2)
Given that the equations be used to model this situations is:
2x + 2y = a
bx = cy-d
Therefore comparing this model with equation 1 and 2, we get that:
a = 820, b = 1, c = 2, d = 100
During a sale, Cindy found boxes of dog biscuits on sale for $0.69 that had previously cost $2.23. What percentage is the discount?
Answer:
The dog biscuits are approximately 69% off.
Step-by-step explanation:
(1 - 0.69/2.23) * 100
(223/223 - 69/223) * 100
154/223 * 100 = 69%
WILL GET BRAINLEST WILL HAVE TI ZOOM IN THI SHIW WORK TOO PLSSS ASAP
Answer:
sin = 1.333333
cos = 0.75
the simple interest $ Interest, on a sum of money , $P after T years at R% is given by the formula interest = PRT ÷100
a) make t subject of the formula
b) find t if interest = 51 , P =340 and R=2 1/2
Step-by-step explanation:
a)t=100×I÷PR
b)t=200×51÷340×5 (simplify)
therefore t=8670
thanks Hope It Help
56 out of the 56 employees at the sports shop are part-time employees. What percentage of the employees at the sports shop work part-time?
Answer:
100%
Step-by-step explanation:
Since 56/56 employees at the sports shop work part time, that means 100% of them do, or all of them.
yea...we most def ain't learn this in class
Answer:
F. 300,000
Step-by-step explanation:
logically, it is decreasing by 1.
Can someone help me please like please I need to turn it in like in 10 minutes
If triangle BCD was reflected over the x-axis, what would be the coordinates of the new triangle's vertices?
A. (-1, 0), (-1, -2), (-4, 1)
B. (-1, 0), (-1, 2), (-4, 1)
C. (-1, 0), (-1, 2), (4, -1)
D. (1, 0), (-1, 2), (-4, 1)
on time 4 learning
Answer:
b the answer is B because
A car costs$cents when new. It was sold for four fifths of its cost price. How much money was lost on the car.
The question is incomplete as the cost price isn't given. However, taking the cost price as x :
Answer:
Kindly check explanation
Step-by-step explanation:
Given :
A car costs$cents when new. It was sold for four fifths of its cost price. How much money was lost on the car.
Let :
Cost price when new = x
Cost price when sold = 4/5 * cost price when new
Cost when sold = 4/5 of x = 4x/5
Amount of money lost on the car = (Cost price of car when new - Cost of car when sold)
Hence,
Amount of money lost on the car = (x - 4x/5)
x - 4x/5 = (5x - 4x) / 5 = x / 5
To obtain the exact price, kindly input the omitted cost when new for x.
PLSSS HELPP I need the answers
Answer:
Step-by-step explanation:
t = 20
CROSS MULTPLICATION !
[tex]\frac{a}{b} = \frac{c}{d}[/tex]
in this situation ab = cd
[tex]\frac{16}{t} = \frac{80}{100}[/tex]
(16)(100) = 80t
1600 = 80t
1600/80 = t
t = 20
Answer:
11
Step-by-step explanation:
11
1
45
35x345 = 30
1
For the following right triangle, find the side length x
Answer:
x = 25
Step-by-step explanation:
b² + h² = x²
24² + 7² = x²
576 + 49 = x²
625 = x²
√625 = √x²
25 = x
Step-by-step explanation:
x² = 7² + 24²
x² = 49 + 576
x² = 625
x = 25
