Answer:
Step-by-step explanation:
In order for us to be able to find our answer, we need to show our work.
-3(x-y=3) → -3x + 3y = -9
+2x - 3y = -1
____________________________
-1x = -10
-1 -1
We need to divide -1 both sides in order for us to be able to find our x-value but there's more to this than just solving for X.
x = 10
x - y = 3
10 - y = 3
-10 -10
_________________
-y = -7
-1 -1
We need to divide -1 both sides in order for us to be able to find our y-value. Please note that each y is equivalent to an invisible 1.
y = 7
As a result, your answer will be B.
The price of televisions has dropped dramatically over the last three years. Three years ago a 32 inch television was $500. This year the tv was on sale for $199. What is the percent change?
A percentage is a way to describe a part of a whole. The percentage change in the price of the TV will be 60.2%.
What are Percentages?A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
As it is mentioned that the price of the tv 3 years ago was $500, while the current price of the tv is $199. Therefore, the percentage change in the price of the tv can be written as,
[tex]\rm Percentage\ change = \dfrac{\text{Initial value - Final value}}{Initial\ value} \times 100\%[/tex]
[tex]\rm Percentage\ change = \dfrac{\$500-\$199}{\$500} \times 100= 60.2\%[/tex]
Hence, the percentage change in the price of the TV will be 60.2%.
Learn more about Percentages:
https://brainly.com/question/6972121
This composite figure is made up of three simpler shapes. What is the area of
the figure?
10 cm
17 cm
4 cm
4 cm
15 cm
A. 116 square cm
B. 100 square cm
C. 81 square cm
O D. 146 square cm
Answer:
116
Step-by-step explanation:
Just took test
Answer:
116 brotha
Step-by-step explanation:
2/3 of the children in a group have a pet dog. Of those who have a dog, 3/4 have a cat as well. What fraction of the children in the group have a dog and a cat?
Answer:
The fraction of the children in the group that contains both dog and a cat is [tex]\frac{17}{12}[/tex]
Step-by-step explanation:
The fraction of the children in the group that contains both dog and a cat is presented below:
= Pet dog + cat
[tex]= \frac{2}{3} + \frac{3}{4}\\\\= \frac{8 + 9}{12} \\\\= \frac{17}{12}[/tex]
Hence, the fraction of the children in the group that contains both dog and a cat is [tex]\frac{17}{12}[/tex]
What is the slope of the graph of y-3= -1(x+2)
Answer:
-1
Step-by-step explanation:
i need help with this math 50 points if you get is right
can somebody help me with the problem in the picture :( pleasee
Answer:
2^3*3*5=120
Step-by-step explanation:
5 is the prime number
Find the solution of the system of equations.
4x – 8y = -44
2x + 4y = -6
Answer:
x= -7/2
y= 5/4
Step-by-step explanation:
x-2y=-11
x+2y = -6
then isolate x and set equal to each other
-2y - 6 = 2y -11
4y = 5
y = 5/4
then solve for x using y.
x+5/2 = -6
x = -7/2
hii please help i’ll give brainliest
Answer:
Answer C or "7+3c"
Explanation:
This is because, 7 more would mean its independent on its own side of the plus sign and 3c mean 3 multiplied by ... (any number)
Hope this helps and please mark brainliest!x = -0.25 and y = -6
Solve the expression: -7x
Answer:
1.75
Step-by-step explanation:
-7*-.25
A 35-foot ladder is leaning against the side of a building and is positioned such that the base of the ladder is 21 feet from the base of the building. How far above the ground is the point where the ladder touches the building?
Answer:
height = 28 feet
Step-by-step explanation:
using the Pythagorean theorem:
height = 35² - 21²
height² = 1225 - 441 = 784
height = 28 feet
The area of a square is greater than the area of the circle by 12 cm^2. Find the length of the side of a square if the area of the circle is 36 cm^2?
Answer:
Adding 12 to the circle area is equal to the square area.
Or
s2 = 12 + A
Where
s = side of square
A = area of circle
So
s2 = 12 + 36
s2 = 48
Solve this for s to get the side length
i give brainliest pls help meee.
Find sin 0, where 0 is the angle shown.
Give an exact value, not a decimal approximation.
Answer:
Answer: Sin0 = 8/8.5
Step-by-step explanation:
Step-by-step explanation: What we have is a right angled triangle, with two sides given and one angle which is the reference angle (unknown angle).
The Sine of the angle is calculated as
Sin0 = opposite/hypotenuse
We have the opposite side (facing the reference angle) as 8 units and the hypotenuse (facing the right angle unknown), which we shall label as X.
To calculate the hypotenuse, we shall apply the Pythagoras theorem which is,
X² = 3² + 8²
X² = 9 + 64
X² = 73
Adding the square root sign to both sides of the equation, we now have
X = √73
X = 8.5 (approximately)
Now that we have the hypotenuse as 8.5, the Sine of the angle can now be calculated as
Sin0 = opposite/hypotenuse
Sin0 = 8/8.5
A bag contains 2 beads Are blue 1 of the bead is green 3 of the bead is purple
Answer:
hope I'm right good luck
Step-by-step explanation:
2x1x3=6 so the rest is 6 which equals 12
Answer:
Step-by-step explanation:
Well there are 12 beads.
2+1+3=6 and that means there are 6 red beads.
Then 6 red beads+3 Purple beads=9 Beads and 9/12 is the same as 3/4 meaning the probability of picking a purple/red bead IS 3/4
Can someone help me out ASAP ?
Answer:
28 and 152
Step-by-step explanation:
Box A contains 10 pens that are either red or blue in colour. Box B contains 23 pens that are also either red or blue in colour. The number of blue pens in Box B is twice the number of blue pens in Box A while the number of red pens in Box B is thrice the number of red pens in Box A. Write a pair of linear equations using b as the number of blue pens in Box A and r as the number of red pens in Box A.
Answer:
b + r = 10 - - (1)
2r + 3b = 23 - - (2)
Step-by-step explanation:
Number of Blue pens in box A = b
Number of red pens in box A = r
BOX A :
Contains 10 pens that are either red or blue
b + r = 10
BOX B:
Contains 23 pens that are either red or blue ;
Red pens in box B = 2 tines the number of red pens in box A
Blue pens in box B = 3 times the number of blue pens in box A
2r + 3b = 23
Translate the sentence into an inequality.
Twice the difference of a number 4 and is greater than 28.
Use the variable w for the unknown number.
Answer:
(4w) > 28
Step-by-step explanation:
Please mark helpful
do you think, in ur own opinion? do you think all lives matter or only blm?
I would say alm and blm but I want to hear from you! :)
Answer: when a black person heard u say all lives matter they would absolutely hurt you don’t ever say that infront of a colored one
Step-by-step explanation:
Answer:
i thnik all lives matter
Step-by-step explanation:
simplify 10 + 2 x (7 − 3 + 4) − 15 ÷ 3
a)7 b)17 c)21 d)27
Answer:
C).21
Step-by-step explanation:
from the point p(-2,4) if PQ is drawn perpendicular to line 7x-24y+10=0,find the eqaution of the lin PQ . also determine the length of PQ
Answer:
7y+24x = -12
Step-by-step explanation:
Equation of line PQ in point slope form is expressed as;
y -y0 = m(x-x0)
m is the slope of {Q
(x0, y0) is the point on the line
Given the line 7x-24y+10=0
Get the slope
-24y = -7x -10
y = -7/-24 x - 10/-24
y = 7/24 x + 5/12
Slope = 7/24
Slope of the line PQ perpendicular to it = -24/7
Substitute m = -24/7 and (-2, 4) into the formula;
y - 4 = -24/7(x+2)
7(y-4) = -24(x+2)
7y - 28 = -24x-48
7y + 24x = -40 + 28
7y+24x = -12
This gives the equation of the line PQ
On a map, the scale is 1 inch = 5 miles. On the map, the distance between two cities is 6.25
inches. What is the actual distance between the cities?
Answer:
31.25 miles
Step-by-step explanation:
14 + w is the same as which expression?
A
14w
B
14-W
С
W + 14
D
W - 14
Answer:
I think it's w + 14? :3
AND I THOUGHT I SAW A KUNIMI PFP-
Step-by-step explanation:
:3
La raíz de un número real negativo existe en los reales si y sólo si su índice es:
negativo impar
positivo par
impar
par
real positivo
Respuesta:
C) impar
Explicación paso a paso:
Solo se puede con un índice impar, ya que al ser negativo su solución no existe en los reales si tiene índice par
Marela prepared 25.6 liters of concentrated mango juice. Sie plans to pour it in small canister of 0.1 liter capacity. How many canister does she need to prepare?
Six more than the quotient of a number be in 30 is greater than three
Answer:
Hey mate....
Step-by-step explanation:
This is ur answer.....
6 more means we are adding.
Quotient means division. What we are dividing is an unknown quantity x and 3.
The final answer is 14. That gives us of the following :-
6 + x/3 = 14Hope it helps you,
mark me brainliest plz....
Follow me!
a rectangular canvas covers 225 square inches on a wall. If the canvas has a height of 18 inches then what is the base?
Answer:
12.5 Sq inches
Step-by-step explanation: 225 is the area and the formula for area is b*h (base times height) and from the problem, you can see that 18 inches is the height. In this case you would do 225/18 which gives you 12.5 sq inches.
Does anyone know this answer??
Choices- 333.50, 63.50, 153.50, 166.75
Answer:
153.50
Step-by-step explanation:
Sum of all interior angles of a triangle is 180°.
Option(1): 333.5 is much greater than 180(sum of all angles). 333.5 + 13.25 + angle P = 180, for all +ve values of angle P.
/_P = 180° - 13.25 - 333.5 , /_P is -ve from this which is impossible(for an angle in triangle)
This is incorrect.
Option(2): As it can observed, /_ R is much greater than 90°. It means, it should be greater than 63.50°.
This is incorrect.
Option(3): 153.50 is greater than 90°. Moreover, if /_ R is 153.5, let /_P be x, then,
=> 13.25 + 153.50 + x = 180°
=> x = 13.25. , which is +ve
So we can say /_P = 153.50
Option(4): if /_ R is 153.5, let /_P be x, then,
=> 13.25 + 166.75 + x = 180°
=> x = 0 , which is impossible(as we can see It's not 0)
Incorrect.
Find the unit rate.
Answer and Step-by-step explanation:
It is 3 dollar per pound.
To figure this out, you would have to divide each number by 8. This reduces 8 pounds to 1 pound, and 24 dollars to 3 dollars.
#teamtrees #PAW (Plant And Water)
Can anyone help me with this?: x/-4 - 10 = -5 thank you
Answer:
x=-20
Step-by-step explanation:
(x/-4)-10 = -5
-5 + 10 = x/-4
5 = x/-4
5 x -4 = x
-20 = x
x= -20
CHECK
(-20/-4)-10 = -5
5 -10 = -5
in a school with 200 students, 45% are males. how many males are there.? please help me
Answer:
90 males.
Step-by-step explanation:
To find the answer we will divide 45% by 100, and we get 0.45. Now multiply 0.45 by 200 and you get 90. Therefore, 90 males is the answer.