Answer:
Step-by-step explanation:
3x+6=9
3x=9-6
3x=2
x=1.5
Answer:
x=1
Step-by-step explanation:
Subtract 6 from both sides of the equation, leaving 3x=3.
We put both sides over 3 to divide.
We are left with x=3
To test this, we substitute x with 1.
3(1)+6=9
3+6=9
9=9
Help please please please
[tex]1/2=0.5\\5/0.5=10[/tex]
Choose the prime number. 25, 27, 31, 32, 44, 45
Answer:
the prime number is 31
Step-by-step explanation:
hi I got it right
Two systems of equations are shown below:
System A
System B
3x + 2y = 3
−x − 14y = 1
−2x − 8y = −1
−2x − 8y = −1
Which of the following statements is correct about the two systems of equations? (1 point)
The value of x for System B will be one−third of the value of x for System A because the coefficient of x in the first equation of System B is one third times the coefficient of x in the first equation of System A.
The value of x for System A will be equal to the value of y for System B because the first equation of System B is obtained by adding −4 to the first equation of System A and the second equations are identical.
They will have the same solution because they represent the same lines when plotted on the coordinate axes.
They will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 2 times the second equation of System A.
Answer:
The two linear equations represented in system A as :
3 x + 2 y =3 -------(1)
- 2 x - 8 y = -1 ------(2)
(1) × 2 + (2) × 3 gives
⇒ 6 x + 4 y - 6 x - 24 y = 6 -3
⇒ - 20 y = 3
⇒ y =
Putting the value of y in equation (1), we get
Two linear equation represented in system B is:
3. -x - 14 y =1
4. - 2 x - 8 y = -1
-2 ×Equation (3) + Equation (4)=
2 x +28 y- 2 x - 8 y= -2 -1
⇒ 20 y = -3
⇒y =
Putting the value of y in equation (3),we get
As Two system , that is system (A) and System (B) has same solution.
By looking at all the options , i found that Option (D) is correct. The two system will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 2 times the second equation of System A.
-2g – 2m + 5, when g=-3 and m= 10
Answer:
9
Step-by-step explanation:
-2g- 2m+ 5
-2(-3) - 2(10) +5
6- 20+ 5
9
A department store sells a pair of shoes with an 87% markup. If the store sells the shoes for $193.21 then what is their non-markup price?
Step-by-step explanation:
87% + 100% = 187%
187% of original price = $193.21
100% of original price = $193.21 * (100/187) = $103.32.
The non-markup price is $103.32.
Answer:
87% + 100% = 187%
187% of original price = $193.21
100% of original price = $193.21 * (100/187) = $103.32.
The non-markup price is $103.32.
Step-by-step explanation:
What is 12 1/2 x 4 2/3
Answer:
174 1/3
Step-by-step explanation:
Answer:
175
Step-by-step explanation:
because may i pls have brainlest
Which of the following best describes an Extraneous Solution?
Answer:
An extraneous solution is a solution obtained through algebraic manipulations that is not a solution to the original equation.
Step-by-step explanation:
what is 1+1 first person gets brainlst if u get wrong no brainlst
Answer:
2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
What is the radius of the base of the cylinder below?
A cylinder with height of 36 inches and diameter of 42 inches.
inches
Answer:
21
Step-by-step explanation:
I WILL GIVE BRAINLIEST FOR FASTEST AND CORRECT ANSWERS!!
Alex was biking along a 48 mile trail. First half of the time he was biking twice as fast as the second half of the time. If he spent 4 hours on the road, how fast was he biking at first?
Answer:
The speed in the first part is 16 mph.
Step by step explanation:
The total distance is 48 miles. The total time is 4 hours.
In the second part of the trip, he was traveling at speed s for distance d for 2 hours.
In the first part of the trip he was traveling
at twice the speed, or 2s, for distance 48 - d, for 2 hours.
speed = distance/time
distance = speed * time
First part of trip:
48 - d = 2s * 2
d + 4s = 48 Equation 1
Second part of the trip:
d = s * 2
d = 2s =
Equation 2
Equations 1 and 2 form a system of equations in two unknowns, d and s.
d + 4s = 48
d = 2s
Substitute 2s for d in equation 1.
2s + 4s = 48
6s = 48 =
s=8
The speed in the second part is 8 mph.
The speed in the first part is 2s = 2(8) =
16.
The speed in the first part is 16 mph.
Check:
d = 2s = 2(8) = 16
48 - d = 48 - 16 = 32
The second part is 16 miles. The first part is 32 miles.
16 miles at 8 mph takes 2 hours.
32 miles at 16 mph takes 2 hours.
2 hours + 2 hours = 4 hours.
Our answer is correct.
Answer: The speed in the first part is 16 mph.
5x-2x(x-1)=???????????????????????????????
Answer:
7x-2x"2
Step-by-step explanation:
Answer:
it is
7x-2x^2
Step-by-step explanation:
5x+2x-2x^2 = 7x-2x^2
Please help meeeee :,(
Answer:
I pretty sure the answer is ASA, I hope it's right!
Please help me 32 points
Problem
Choose the inequality that represents the following graph.
Answer:
im pretty sure its d
Step-by-step explanation:
What is the value of x?
Sum of three angles in the triangle equals to 180.
70+30+x=180
100+x=180
x=180-100
x=80
Therefore, the answer is 80.
-3(2x-3)= -5x+5 show your work
Answer:
x=4
Step-by-step explanation:
Hope this helps!
Plz, mark brainiest! ^.^
Answer:
x = 4
Step-by-step explanation:
Use the distributive property to distribute the -3 amongst the 2x and the -3 in the parenthesis. Once distributed you should have -6x + 9 = -5x + 5. Next, you want to get all like terms on the same side, and to do that you must swap the +9 and the -5x. When you swap these, you must 'flip' the sign and change 9 to -9 and -5x to 5x. Now the equation should look like this: -6x + 5x = -9 + 5.
Now just solve. After solving, it should look like this: -1x = -4. Now to get rid of the negatives. Just divide each side by negative one and your answer is x = 4.
if 3 pipes can fill the tank completely in 2 hour then when will 1 pipe fill the tank
Answer:
6 hours
Step-by-step explanation:
Original price: $10 New price: $7
Is it a discount,
Or a mark up.
Answer:
discount
Step-by-step explanation:
goes under og price
Answer: 17
Step-by-step explanation:
What is the value of y in the equation 2(2y − 12) = 0? (5 points) a 4 b 6 c 7 d 8
Answer:
A-6
Step-by-step explanation:
Answer:
ans 6
Step-by-step explanation:
by expanding the equation,
4y-24=0
4y=24
y=6
Write the equation of the graphs which have m=2, c = 1
Answer:
y = 2x + 1
Step-by-step explanation:
formula for equation of graph:
[tex]y = mx + c[/tex]
substitute m = 2 and c = 1 into the equation
[tex]y = 2x + 1[/tex]
Step-by-step explanation:
please see it my step work solution
where are the vertical changes, Horizontal change, and slope
Answer:
l don't understand your question.......sorry
18 vocabulary words learned in 2 hours; 27 vocabulary words learned in 3 hours
Answer: They are equivalent
Step-by-step explanation:
Here is the complete question:
18 vocabulary words learbed in 2 hours 27 vocabulary words learned in 3 hours Are they equivalent? Why
From the question, we are informed that 18 vocabulary words are learned in 2 hours. The number of words learned per hour will be:
= 18/2
= 9 words per hour.
27 vocabulary words learned in 3 hours. The number of words learned per hour will be:
= 27/3
= 9 words per hour.
Since they both have identical number of words learned per hour, it means that they're equivalent.
What the solution to -8+x=3
Answer:
x=11
Step-by-step explanation:
We would add 8 to both sides of the equation, leaving us with x=11
hii please help mee urgent :)
Answer:
The answer is C.
explanation:
The reason for answer (C) is because when looking for a function the (X) value cant repeat, but the (Y) can. In answer (C) the x-value 19 repeats.
sorry if its wrong, but pretty sure im right.
A mayor estimates that 4,000 people will attend the first day of the county fair. A total of 8,400 people actually attend the first day of the fair. What is the percent error of the mayor’s estimate? Round the answer to the nearest tenth percent, if necessary.
Answer:
110%
Step-by-step explanation:
4000 100
8400 ?
8400x100
4000
210% of the expected people showed up
Solve the inequality.
4x - 12 < 16
Answer:
x<7
I Believe
Owen made exactly 72% of his free throws during the first half of the basketball season, and he made six free throws during the second half of the season. For the entire season he made exactly 60% of his free throws. What is the fewest possible number of free throws Owen could have attempted during the second half of the season?
Answer:
The fewest possible number of free throws Owen attempted is 15 throws
Step-by-step explanation:
From the first half,
72% = 72/100 = 18/25, reduced to its simplest ratio.
It means that he made at least 18 free throws in the first half of the season.
From the second half,
Let x be the fewest possible outcome of free throws, and the sum of total is 60% = 60/100 = 0.6
Considering the 6 free throws during the second half of the season,
(18+6)/(25+x) = 0.6
24/(25+x) = 0.6
Solving for x,
24 = 0.6(25+x)
24 = 15+0.6x
24-15 = 0.6x
9 = 0.6x
x = 9/0.6 = 15
x = 15 free throws
The fewest possible number of free throws Owen attempted is 15 throws
What is the range of the function f(x)=2x−4 when the domain is {-3, 0, 4}?
I found: Domain: all real x ; Range: all real y
if f(x)= x^2 and g(x) = 4f (x)-1 then which of the following is the value of g (-3)
view image below to see answer choices
Answer:
27Step-by-step explanation:
Given
f(x)= x^2-2 and g(x) = 4f (x)-1
g(x) = 4(x^2-2) - 1
g(x) = 4x²-8-1
g(x) = 4x²-9
Get g(-3):
g(-3) = 4(-3)²-9
g(-3 = 4(9) - 9
g(-3) = 36-9
g(-3) = 27
A
Solve the triangle.
19.3
b
45°
105
B
a
true or false im dumb sorry
Answer:
False
Step-by-step explanation:
Tell me if you need an explanation
Answer:
it's false.
4×4×4= 64.