Answer:
(0.5)
Step-by-step explanation:
x + y = 5
3x - y = -5
Put "y" on one side to isolate
3x - y = -5
3x = y - 5
3x + 5 = y
Plug "3x + 5" in for "y" in the second equation
x + (3x + 5) = 5
4x + 5 = 5
4x = 0
x = 0
Plug "0" in for "x" in any one of the equations
0 + y = 5
y = 5
To check, plug in "0" for "x" into the first equation and make sure they get the same answers
3(0) - y = -5
0 - y = -5
y = 5
is Justin went shopping for school clothes if the item cost $150 and he received a 10% discount what is the final price of his purchase
Answer:
$135
Step-by-step explanation:
We can answer this by multiplying $150 by (1.00 - 0.10), or by 0.90:
0.90($150) = $135.
Note that 1.00($150) = $150 (full price)
and that 0.10($150) = $15 (discount)
and that (0.90)($150 = $135 (the fastest way to calculate the final (sale) price.
What is x equal in 7^2 + 11^2 = x^2
Answer:
25 once a the steps are complete
The price of a radio was $20. It is in sale for $15. What is the percent of change in the price of a radio
Answer:
Change in price/original price x100
=(20-15)/20 x 100
=5/20 x100=25%
Quadrilateral QRST is a square. If the measure of RS is 12x + 5 and QT is 8x + 15, find
the value of x.
Answer:
B) 2.5
Step-by-step explanation:
12x+5=8x+15
12x-8x=15-5
4x=10
x=10/4
x=2.5
How many solutions will this equation have?
x^(2)-12x +13 = 0
Answer:
1
Step-by-step explanation:
What is the zero of the linear function graphed below?
Answer:
All lines, with a value for the slope, will have one zero.
Step-by-step explanation:
To find the zero of a linear function, simply find the point where the line crosses the x-axis. Zeros of linear functions: The blue line, y=12x+2 y = 1 2 x + 2 , has a zero at (−4,0) ; the red line, y=−x+5 y = − x + 5 , has a zero at (5,0) .
At the craft store, Kenji bought a bag of brown and blue marbles. The bag contained 60 marbles, and 40% of them were brown. How many brown marbles did Kenji receive?
Find the indicated side length to the nearest thousandth.
Given:
In a right angle triangle, base is 16, perpendicular height is x and the angle of elevation is 10 degrees.
To find:
The value of x.
Solution:
In a right angle triangle,
[tex]tan \theta=\dfrac{Perpendicular}{Base}[/tex]
In given triangle, using this formula, we get
[tex]tan (10^\circ)=\dfrac{x}{16}[/tex]
[tex]17633=\dfrac{x}{16}[/tex]
Multiply both sides by 16.
[tex]0.17633\times 16=x[/tex]
[tex]2.82128=x[/tex]
Round to the nearest thousandth.
[tex]x\approx 2.821[/tex]
Therefore, the value of x is 2.821 units.
4. A box contains cards that are numbered from 1 to 100. What is the
probability of randomly selecting a number that is less than 12? *
1/100
1/12
11/100
12/100
Answer:
Hey! The answer would be 12/100
Step-by-step explanation:
Because you dont need to simplify the fraction, the only right answer there is 12/100.
Pls halp I need it fast so please try your best to be fast
Answer:B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
please help!!!!!!!!
Answer:
This answer should be 16
Answer:
i think here the answer is 16
We write 4% as a decimal
Answer:
4/100=2/50=1/25=0.04 .........
A plane is beginning to descend when it is 10,000 feet in the air. The straight line distance (hypotenuse) to the airport is 25,000 feet. What is the angle of depression at which the plane began its descent? Round your answer to the nearest degree.
Answer: 35,000
Step-by-step explanation:
Solve the system of linear equations by multiplying. Check the answer by graphing the system of
equations.
9x - 3y
= -3
2x + 5y
= 22
The solution is
Answer:
yes
Step-by-step explanation:
HELP ME PLEASEEEEEEEEEEEEEE
Answer:
pretty sure it's the 2nd one
Step-by-step explanation:
In one school year, the students spent a total of 840 hours in their classes. If they have EIGHT different classes, how many hours will
they spend in THREE of those classes?
Answer:
280 hours
Step-by-step explanation:
Find a number n so that 56 divided by n is greater than 1 but less than 7
Answer:
8
Step-by-step explanation:
56/8=7
Answer:
4
Step-by-step explanation:
At noon, a tank contained 8 cm of water. After several hours, it contained 4 cm of water. What is the
percent decrease of water in the tank?
The percent decrease of water in the tank is %.
Enter your answer in the answer box and then click Check Answer.
Review progress
Question 3
of 13
Back
Next →
Answer:
50%
Step-by-step explanation:
What is a 6% sales tax for a pair of $85 jeans
Answer:
Hey there the answer is $5.10 but if you need the full price it is $90.10
Step-by-step explanation:
19.5 is what percent of 150?
Answer:
The answer is 13
19.5 is 13% of 150
Answer:
13%
Step-by-step explanation:
Set up the following equation
150 * x = 19.5
Solve for x by diving 19.5 with 150 which will get you 13%
The buildings of a university are mapped on a coordinate grid with the origin being at library.
The Math building is located at the point (1,5) and the History building is located at (4,9).
How far is it from the Math building to the History building?
units
Answer:
Step-by-step explanation:
The distance between from Math building to history building is 5 units
What is Distance Formula?The distance between coordinate P(x , y) and coordinate Q(a , b) is calculated using the distance formula: d= √(x-a)²+(y-b)²
The Math building is located at the point (1,5)
The History building is located at (4,9).
Using distance formula:
d= √(x-a)²+(y-b)²
=√(4-1)²+(9-5)²
= √9+16
= √25
= 5 units
Hence, the distance between Math and History building is 5 units.
Learn more Distance Formula here:
https://brainly.com/question/2287272
#SPJ2
PLEASE HELP ASAP WILL MARK AS BRAINLYEST
The figure shows a carpeted room. How many square feet of the room are carpeted?
5 feet
4 feet
6 feet
10 feet
O 30 square feet
O 32 square feet
O 40 square feet
O 80 square feet
Answer:
The answer is 40.
Step-by-step explanation:
4x5 for the square part.
2x10 for the rectangle part
add them
simplify using the laws of exponents x^4 x^6
Answer: [tex]x^{10}[/tex]
If I Helped, Please Mark Me As Brainliest, Have A Great Day :D
Find x.
Pls I need help could you help me
What is the slope of the line?
3(y - 1) = 2x + 2
hope it helped
3(y-1)=2x+2
3(y-1)/3=2x+2/3
y-1=2x/3+2/3
y=2x/3+2/3+1
y=2x/3+5/3
m=2/3
What is the he measure of angle C
Answer:
18
Step-by-step explanation:
What fraction of 200 gallons is 171 L? Give your answer in simplest form. 1 gallon = 4.5 L.
PLEASE HELP
Answer:
║∦║Hello Friend!║∦║
Your answer should be:
757.08
Step-by-step explanation:
I'm very sorry if it is wrong!
Have a great day!! :Di need help fast, thanks :)
Emily is observing the velocity of a cyclist at different times. After four hours, the velocity of the cyclist is 14 km/h. After nine hours, the velocity of the cyclist is 4 km/h
Part A: Write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist different times. Show your work and define the variables used.
Part B: How can you graph the equations obtained in Part A for the first 10 hours?
Find the distance between points (-3.7.7.5) and (0.3, 7.5).
units apart.
Answer:
sorry i didnt really understand
it wants us to solve for x and i’m very confused
x= ?
Answer:
x = 6
Step-by-step explanation:
∡J = ∡K and ∡M = ∡L
because this is an isosceles trapezoid
∡J + ∡M = 180°
because angles at opposite bases are supplementary
then ∡J + ∡M = 180°
∡J = (7x + 2)°
∡M = ∡L = (25x - 14)°
so:
(7x + 2 + 25x - 14)° = 180°
(32x - 12)° = 180°
32x = 180 + 12
32x = 192
x = 6
Answer:
x= 8/9
Step-by-step explanation:
7x + 2 = 25x - 14
-7x -7x
2 = 18x - 14
+14 +14
16 = 18x
18 18
x=8/9