Answer:
x=1/3. y=3/2
Step-by-step explanation:
x+y=2. =>equation 1
2x-y = 1. => equation 2
equation 1 + equation 2,
x+y+(2x-y) = 2-1
x+y+2x-y = 1
3x = 1
x=1/3
plug in value of x in equation 1,
1/2 + y = 2
y= 2 - 1/2
y = 3/2
Find the area of the rectangle contained within the following four lines
x =1, x = -2 , y= -3, y=2
Answer:
15
Step-by-step explanation:
555,555,555 X332,333,123,124,222
Answer:
1.8462951e+23
Have a amazing day
Meg has 28 feet of ribbon that she wants to divide into of a foot pieces. How many of a foot pieces are there in 28 feet?
which graphs represents a bike traveling at a contest rate of 12 miles per hour
Answer:
(1,12), (2,24), (3,36)...
WILL GIVE BRAINLIEST
group of scientists studied the amount of erosion at a beach. The scientists determined that the equation y = -0.5x + 26 models the amount of shoreline, y, in feet, X
decades after 1950. Which statement is true based on the model?
The shoreline is reduced by 0.5 foot every 10 years.
B
The shoreline is increased by 0.5 foot every 10 years.
The shoreline is reduced by 26 feet every 10 years.
D
The shoreline is increased by 26 feet every 10 years.
Answer:
The shoreline is reduced by 0.5 foot every 10 years
Step-by-step explanation:
anyone know this please help ?
Answer:
National debt would be 1,400,000,000,000 to the power of 12.
Step-by-step explanation:
. Elena goes for a long walk. This graph shows her time and distance traveled throughout the walk.
What was her fastest speed, in miles per hour?
Answer:
wheres the graph
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
The answer isn't 3. I had this question on a test and the answer was 2 and not 3!
Evaluate the following expression if w = 10, x = 8, y = 6, z = 4
3y - w
Answer:
8
Step-by-step explanation:
3y - w
substitute y for 6 (given)
3 * 6 - w
18 - w
now substitute w for 10 ( given)
18 - w
18 - 10
8
PLEASE HELP ASAP!! -13=r/9+8 what does r=?
Answer:
-189
I looked it up
Help a girl out please!!!!
(I don't need to define them like I know what they mean I just don't know what they are for this question if I make sense lol)
Answer:
TUV~TRQ
SF=SAS
Step-by-step explanation:
bet
Alden measured the water level in his pool each day. Ever day, the water level went down 1 1/2 inches he measured the pool for 5 straight days. Which value in this situation could be represented by a negative number?
Answer:
Decrease or decline in water level per day
Step-by-step explanation:
Given the question above ;
The situation which could be repress Ted by a negative number is the decrease in the water level of the pool being measured :
It could be expressed as - 1 1/2 inches per day
Fall, decrease, loss or reductions are usually modeled in mathematics using the negative sign as it portrays a negative adjustment or reduction in the original amount of a commodity, item or phenomenon.
Furthermore, total decline after 5 days will be ;
-1 1/2 * 5 = (-3/2 * 5) = - 15/2 = - 7.5 inches
The area of a square patio is 196 square feet. How long is each side of the patio?
Each side of the patio is ____ feet long.
Answer:
13 feet long
Step-by-step explanation:
Given area of a square patio is 196 square feet.
Length of each side of the patio is the same, since it is a square.
Let a be the length of the side of the square
area=a*a=196
a^2=196
a=√196
a=13 feet
I need help on MATH!!!!!! I will mark BRAINLIEST for right answer!!!!!!!
the square root of 85 is between _ and _,and it is closer to_
Answer:
9 and 10, and it is closer to 9
Step-by-step explanation:
85 is closer to 81 than 100.
Answer:
between 9 and 10 and it is closer to 9
Step-by-step explanation:
I NEED HELP PLEASE IM BEGGING YOU PLEASE!!!!!!!
I NEED HELP WITH THE ONES THAT A HIGHLIGHTED PLEASE
Answer:
Step-by-step explanation:
21) 64=8(r+2)
Step 1: Simplify both sides of the equation.
64=8(r+2)
64=(8)(r)+(8)(2)(Distribute)
64=8r+16
Step 2: Flip the equation.
8r+16=64
Step 3: Subtract 16 from both sides.
8r+16−16=64−16
8r=48
Step 4: Divide both sides by 8.
8r
8
=
48
8
r=6
29) Step 1: Simplify both sides of the equation.
−4(r+6)=−63
(−4)(r)+(−4)(6)=−63(Distribute)
−4r+−24=−63
−4r−24=−63
Step 2: Add 24 to both sides.
−4r−24+24=−63+24
−4r=−39
Step 3: Divide both sides by -4.
and you get r= 39\4
hope that helps
Answer: r = 6
Step-by-step explanation:
64= 8(r+2)
64/8 = 8(r+2) / 8 divide both sides by 8
8 = r + 2 The eights cancel out
- r = 2 + 8 Move the variable to the left and change its sign
- r = - 6 to get id of the negative -r make the 6 a positive
r=6
-4(r + 6) = -63
- 4r - 24 = -63 Distribute 4 through ( ) -4 x4 -4 x6
-4r =63 + 24 Move -24 to the right (making it a positive )
-4r = 39
-4r / -4 = 39 /4 divide both sides by -4
r= 39/4
ANAWWRR ASAP AND SHOW WORK PLEASE
Answer: I think it 3/10
Step-by-step explanation:
Answer: 3/10
Step-by-step explanation:
Draw diagrams illustrating the relationship between the following sets of real numbers:
There is no answer you have to make a diagram (venn diagram) of the relationship between the number sets below.
(a) rational and irrational numbers
(b) rational numbers and integers
(c) irrational numbers and whole numbers
(d) integers and whole numbers
Answer:
C
Step-by-step explanation:
A problem gives you the desired end result and some pertinent information. Which problem solving strategy would be best to utilize in this situation?
Draw a diagram
Guess, check, and revise
Work backwards
10 if correct 1 if not
Answer:
Work backwards
Step-by-step explanation:
I took this quiz rn
Answer: The answer is Work Backwards
Step-by-step explanation: I just took the quiz and got it right
Write an equation of the line that passes through (-1, 3) and has a slope of -4.
A.y=-4x-1
B y=-4x + 1
C y=-x-4
D y=-4x + 7
Answer:
d
Step-by-step explanation:
2. What is the equation of the following graph? Explain how you know.
y = -6
The line is horizontal, meaning it is zero slope, and the line is located on -6, making the equation y = -6
Steve counts up by 4s and Jon counts up by 3s. What is the smallest number that they both say?
Answer: 12
Step-by-step explanation:
From the question, we are informed that Steve counts up by 4s and Jon counts up by 3s. To get the smallest number that they both say, we have to find the multiple of 3 and 4 and then choose the lowest. This will be:
Multiples of 3 = 3, 6, 9, 12, 15, 18 ...
Multiples of 4 = 4, 8, 12, 16, 20, 24 ....
We can see that the smallest is 12
Answer:
12Step-by-step explanation:
4, 8 , 12 , 16, 20 , 24
3, 6 , 9 , 12, 15, 18
Help me quickly please
Answer:
Yes
Step-by-step explanation:
To determine whether a relation is a function or not, we can do a vertical line test. First, get something like a ruler, put it vertical, then scan it on the relation. If the ruler hits one point of the line, then it is a function. If the ruler hits two points at once, then it is not a function. This passes the vertical line test, because when the ruler hits the relation it only hits one point at a time, making it a function. I hope this helps, I hope it's not wrong but I don't think it is.
Find the vertical asymptote
f(x) =
+3
Ox=3
x = -3
Ox=1
Ox=-1
A ball is thrown into the air. The function h=10t-5t^2 can be used to find the height(h) of the ball in meters after t seconds. How long does it take for the ball to reach a height of 5 meters?
Answer: It will take 1 second for the ball to reach a height of 5 meters.
Step-by-step explanation:
Given: The function [tex]h=10t-5t^2[/tex] can be used to find the height(h) of the ball in meters after t seconds.
Now, put h= 5 meters, we get
[tex]5=10t-5t^2[/tex]
[tex]\Rightarrow\ 1=2t-t^2\ \ \[\text{divide both sides by 5}]\\\\\Rightarrow\ t^2-2t+1=0\\\\\Rightarrow(t-1)^2=0\\\\\Rightarrow (t-1)=0\\\\\Rightarrow t=1[/tex]
Hence, it will take 1 second for the ball to reach a height of 5 meters.
this is very confussfing to me will give 100 points
Answer:
I am 60% sure it is line and plane.
Step-by-step explanation:
The service elevator in a high-rise building travels between the lowest underground parking level and the seventeenth story of the building. The lowest parking level is 15 meters below street level, and the seventeenth story is 51 meters above street level. If the elevator rises at a rate of 2 meters per second, how long, in seconds, could a person ride the elevator when starting from the lowest level? Assume the elevator makes no extra stop. A. x ≤ 66 B. x ≤ 18 C. x ≤ 21 D. x ≤ 33\
Answer:
the correct one is a
Step-by-step explanation:
brainliest please help me and show all work
Answer:
- 12x + 24
Step-by-step explanation:
Since the perimeter is 2(length) + 2(width) your equation would start out as:
2[-2(3x-1)] + 2(10x)
2[-2(3x-1)] + 20 = 2(-6x + 2) + 20
2(-6x + 2) + 20 = - 12x + 24
Hope this Helps!!! :)
En un cuartel, los 2/3 de las personas que hay son soldados y el resto son oficiales, suboficiales y jefes. El número de jefes es 1/12 del resto y el número de oficiales es cuatro veces mayor que el número de jefes. Halla el número de oficiales, suboficiales y jefes, sabiendo que hay 600 soldados. *
Answer:
25 jefes
100 oficiales
175 suboficiales
Step-by-step explanation:
Se nos dice que hay 600 soldados que está representado por una fracción de 600
Podemos obtener el número total de personas en el cuartel.
Representemos el número total de personas en el cuartel como: B
2/3 × B = 600
2B / 3 = 600
Cruz multiplicar
2B = 600 × 3
B = 1800/2
B = 900
Por lo tanto, el número total de personas en el Cuartel es de 900 personas.
De la pregunta se nos dice que:
el resto son oficiales, suboficiales y jefes.
Calcule el número total de personas en el cuartel con 1
El resto se representa como:
1 - 2/3 = 1/3
El número de jefes es 1/12 del resto
Por lo tanto,
= 1/12 de 1/3
= 1/12 × 1/3
= 1/36
El número total de personas = 900
Por tanto, el número de jefes = 1/36 × 900
= 25 jefes
Tenemos 25 jefes
El número de oficiales es cuatro veces mayor que el número de jefes.
= Número de oficiales = 4 (1/36)
= 4/36
= 1/9
El número total de personas = 900
Por lo tanto, el número de oficiales = 1/9 × 900
= 100 oficiales
Tenemos 100 oficiales
El número de suboficiales se calcula como:
900 - (600 + 25 + 100)
= 900 - 725
= 175
g(t) = 2t; Find g(6)
What are the two solutions of the equation x^2 − 10 = 90 ?
Show work :)
Answer:
-10 and 10
Step-by-step explanation:
subtracting what is to the right of the equal sign from both sides of the equation : x^2-10-(90)=0
step 1 - A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
(at the end of step 1 it should look like this) = (x + 10) • (x - 10)
solve as many equations as there are terms in the product
any solution of term = 0 solves product = 0 as well.
Answer:
x = 5 ±√115
Step-by-step explanation:
x² - 10x - 90 = 0
You can solve for x by doing it in 2 ways: Completing the square and by using the quadratic formula
Completing the Square
(x² - 10x + 25) - 25 - 90 = 0
(x - 5)² - 115 = 0
(x - 5)² = 115
x - 5 = ±√115
x = 5 ±√115
Quadratic Formula
√460 = √4 X √115
Hence 2√115