Answers
Answer:
A. 5+x-12=2x-7
-7+x+2x-7
x=2x
x-2x=0
-x=0-> x=0
B.
when X=-0.5
5+(-0.5)-12=2 (-0.5)-7
-7.5=-8 (answer does not work)
when X=0
5+0-12=2(0)-7
-7=-7 (answer works)
when x=1
5+1-12=2(1)-7
18=-5 (answer does not work)
Step-by-step explanation:
Answer:
[tex]x=0[/tex]
Step-by-step explanation:
A) From this case you would need to narrow down the whole equation...
Like this: [tex]5+x-12=2x-7[/tex] → [tex]x-7=2x-7[/tex] → [tex]x=0[/tex]
B) To prove that one of these numbers solve the equation, we would have to check it ourselves.
Like this: [tex]5+(-0.5)-12=2(-0.5)-7[/tex] → [tex]-7.5=-8[/tex] (SO THIS WON'T WORK)
[tex]5+0-12=2*0-7[/tex] → [tex]0=0[/tex] (THIS WORKS!)
[tex]5+1-12=2(1)-7[/tex] → [tex]-6=-5[/tex] (NOR DOES THIS WORK)
Therefore: [tex]x=0[/tex] will work to solve the equation correctly
Related Questions
Ms. Contento buys a BMW with an initial value of $45,000. Yearly, the car's
value depreciates by 5%. How much will the car be worth after 8 yours?
Answers
please answer ASAP AFAP PLEASE PLEASE ANSWER RIGHT OR I'LL REPORT YOU TO BRAINLY . but on the other hand if you answer correctly I'll just give you brainliest, and go to your profile and thank you and give you a 5 star rating!
Answers
Answer:
The answer is B. 4.4 oz.
Step-by-step explanation:
What do we know? We have the 6-pack of 12-ounce bottles and they cost $2.99, we also know that the other bottle 67.6 ounces that also costs $2.99.
Forgot the money, we're just going to be looking at the ounces.
First, we take the 6-pack and multiply by 12 because we want the size as one, rather than seperate. 6 x 12 = 72
The question is asking how many more ounces are you getting if you purchase the 6-pack. In order to do this, we take the 72 ounces that we got and subtract that 67.6 ounces of the other drink. 72 - 67.6 = 4.4
The ounces saved are 4.4 ounces.
Which statements are true based on the diagram?
Select three options.
Answers
At a candy store, Layla bought 2 pounds of jelly beans and 4 pounds of gummy worms for $46. Meanwhile, Brittany bought 3 pounds of jelly beans and 2 pounds of gummy worms for $41. How much does the candy cost?
X= Y=
Answers
Answer:
X = $9.00 for 1 pound of Jelly Beans
Y = $7.00 for 1 pound of Gummy Worms
Step-by-step explanation:
Ok, to start we need to make up some notation. It looks like you've chosen X and Y as your variables which works for me.
First lets say X = cost of one pound of jelly beans and Y = cost of one pound of gummy worms
Now let's put together our equations
2X + 4Y = 46
3X + 2Y = 41
Now we need to solve for one of the variables using substitution or elimination. Since none of the variables are isolated, let's use elimination by multiplying the bottom equation by -2.
2X + 4Y = 46
-6X - 4Y = -82
___________
-4X + 0 = -36
-4X = -36
X = 9 or $9.00 per pound
Now we can plug that back into own of the equations and solve for Y
2(9) + 4Y = 46
18 + 4Y = 46
4Y = 28
Y = 7 or $7.00 per pound
Please answer now ! 90 points
Answers
Step-by-step explanation:
2+3b[tex]\leq[/tex]25b=books
3b[tex]\leq[/tex]23
[tex]b\leq 23/3[/tex]
[tex]b\leq 7.67[/tex]
50+25L[tex]\leq[/tex]200L=lesson
25L[tex]\leq[/tex]150
L[tex]\leq[/tex]6
Hope that helps :)
Answer: a)7, B)8
Step-by-step explanation:
Problem a) If Kai wants to buy just one poster that costs 2 dollars, he has 25-2=23 dollars left. If each book is 3 dollars, then he can buy 23/3 books. The inequality that results is that if b=#ofbooks, then b< or = (25-2)/3, because you cant buy a book for 2 and a half dollars, hence the less than. 23/3 is 7 r2. We get that b< or = to 7 2/3. However, he can't buy 2/3 of a book, so 7. The final inequality we get is that 2+3b<=25
Problem 2) She spends 50 initially, so 200-50=150 dollars left. Thus the number of lessons, or n, cover the rest of the money. Using the same thory as above, the final inequality is 50+25n<=200. n=8.
what equation matches the graph?
Answers
Answer:
b
Step-by-step explanation:
What is the area of the triangle in square yards?
6 yd.
15 3/4 yd.
Answers
Answer:
6x15 2/4 yd dividedby 2
Step-by-step explanation:
do the math and u get ur answer
i need to know what -2(3x)+56
Answers
Answer:
-6x + 56
Step-by-step explanation:
-2(3x) + 56
-6x + 56
The table shows the scores of students recent test. Find the mean of the scores and round to the nearest hundredth
Answers
Answer:
Answer and work is in the pdf
Step-by-step explanation:
75+75+80+80+80+80+80+80+85+85+90+90+90+90+90+90+95+95+95+100+100+100+100+100+100
=2,425
2+6+2+6+3+8
=27
2,425/27=89.81
The mean is 89.81
what’s the answer ??
Answers
Answer:
answer A shows a rotation
A because B is a mirror, c is a translation
Min is about to roll a six-sided number cube.What is the probability that she will roll an even number? A) 1/4.. B) 1/3 C) 1/2 D) 5/6
Answers
Answer:
C) 1/2
Step-by-step explanation:
3 of the 6 numbers on a cube are even. 3/6 = 1/2
Decide whether it is possible for a triangle to have the three angle measures or three side lengths given.
If it is possible, then decide whether all such triangles are congruent.
Answers
Answer:
Step-by-step explanation:
the first one cant be a triangle
im pretty sure the second one can
the third one can
im pretty sure the fourth one cant
A whale is at the surface of the ocean to breathe. What is the whale's elevation?
Answers
find vertex of this function
Answers
Answer:
Step-by-step explanation:
(-1,-9)
Which sign makes the statement true?
1.78 ? 0.88
< or >
????
Answers
Answer:
1.78 > 0.88
Because you would always put the sign on the bigger number.
Answer:
1.78 > 0.88
Step-by-step explanation:
It is > hope this helped.
NEED HELP ASAP!!!!
A rectangular billboard for a high school is 10 feet high and 20 feet long. In a scale model of the school, the billboard is 3.5 inches long. How many inches tall is the scale model?
-i got 1.75
Answers
Answer:
I got 1.75 too
Step-by-step explanation:
20/3.5 is 5.7
10/5.7 is 1.75
The rectangular billboard is 1.75 inches tall in the scale model.
What is scale factor?The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller).
The fundamental equation to determine a figure's scale factor is written as, Scale factor is equal to the ratio between the dimensions of the new and old shapes.
Given that, a rectangular billboard for a high school is 10 feet high and 20 feet long.
In a scale model of the school, the billboard is 3.5 inches long.
So, the scale factor = 3.5/20
= 0.175 inches
Thus, the height is 10×0.175
= 1.75 inches
Therefore, the rectangular billboard is 1.75 inches tall in the scale model.
To learn more about the scale factor visit:
https://brainly.com/question/22312172.
#SPJ6
A person pushes a car with a force of 50 pounds. The car moves 5 feet into his garage. How much work was done?
Answers
Answer:
10
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
Can I get help with number 20
Answers
Answer:
-5/4
Step-by-step explanation:
simply this number 15min :3hours
Answers
Answer:
1 min : 12 min
Step-by-step explanation:
To simplify the given ratio, convert both to the same unit of time.
1 hour = 60 minutes
3 hours = 3 x 60 minutes
= 180 minutes
So that,
15 min : 3 hours = 15 min : 180 min
divide through by 15 to have;
15 min : 180 min = 1 min : 12 min
Thus the simplified form of the number give is 1 min : 12 min.
PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST
SHOW YOUR WORK!!!
Calculate the volume of the following three-dimensional object
Answers
Answer:
2305.33π square inches
Step-by-step explanation:
The volume of a sphere is V = (4/3) πr ^ 3
Because the diameter is 24, the radius is 12.
Substituting 12 for r in the above equation:
V = (4/3) π (12 ^ 3) = (4/3) (1728) π = 2305.33π square inches, or 7238.23 square inches.
Answer:
Measure the length, width and height of the square or rectangle prism or object in inches. Record each of these on paper. Multiply the three measurements together to find the volume using either paper and pencil or a calculator. This is the equation: Volume = length x width x height.
I think that is:
24/2 = 12² = 144 x 3.14 = 452.16.
¯\_(ツ)_/¯
What are the next three terms of this pattern?
- 4, - 7, - 2, -5, 0, __, __, __
Answers
Answer:
-4, -7, -2, -5, 0, -3, 2, -1
Step-by-step explanation:
the pattern is -3, +5.
i hope this helps :)
Determine the are length on a circle of radius 7 and an included angle of 4.5 radians.
Answers
Answer:
The arc length of a circle is 31.5.
Step-by-step explanation:
The arc length can be found as follows:
[tex] arc = r\theta [/tex]
Where:
arc: is the length of the arc of the circle
r: is the radius = 7
θ: is the angle = 4.5 rad
[tex] arc = r\theta = 7*4.5 = 31.5 [/tex]
Therefore, the arc length of a circle is 31.5.
I hope it helps you!
a man sold an article at a gain of 5 percent if it had sold for rs 16.30 less he would have suffered a loss of 5 percent find the cost price?
Answers
Answer:
Step-by-step explanation:
let CP of the article = x
at 5% gain, SP of article = x + (5/100)x = 1.05x
at 5% loss, SP of article = x - (5/100)x = 0.95x
given that 1.05x - 0.95x = 16.5
⇒ 0.1x = 16.5
⇒ x = 16.5/0.1
⇒ x = Rs. 165.
The cost price of the article is Rs. 165.
Justin earns a base salary of $1500 per month at
the jewelry shop. He also earns a 3% commission
on all sales. If Just sold $82,975 worth of jewelry
last month, how much would he make for the
month including his base salary and commission?
Answers
Answer: Justin earns a base salary of $1500 per month at
the jewelry shop. He also earns a 3% commission
on all sales. If Just sold $82,975 worth of jewelry
last month, how much would he make for the
month including his base salary and commission?
Step-by-step explanation: $1500 + 3% + $82,975 = 84475. 03 or 84475
Please helpppp! For the function f(x) = -4x - 5, what are the outputs for the inputs 4, 1, 3, and 11?
A. 11; -9; -17; -49
B. 11; -1; 7; 39
C. -21; -9; -17; -45
D. -21; -1; 7; 39
Answers
f(x)=-4x-5
x=4, 1, 3, 11
f(4)=-4(4)-5=-16-5=-21
f(1)=-4-5=-9
f(3)=-12-5=-17
f(11)=-44-5=-49
-21, -9, -17, -49
i need help please explain to me the answer !
Answers
Answer:
If the triangle is similar then their ratio is also same
x = 8
6 4.8
X =8×6
4.8
x = 10 cm
hope this helps
good day mate
What is the x-value of the solution to this system of equations?
X = 2y-3
4X+9y=-63
A :60/17
B : -9
C : -3
D : -17/4
Answers
4(2y-3)+9y=-63
8y-12+9y
17y-12=-63
y=-3
2) Plug in for y into the equation
4x+9(-3)=-63
4x-27=-63
+27. +27
4x=-36
-36/4= -9
x=-9
(-9,-3)
Now check by pluging in for x and y and see if the equation is true.
4(-9)+9(-3)
-36 + -27= -63
Juan earns a flat fee of $150 plus $20 for every hour he works decorating 5 points
a house. Which graph correctly displays Juan's earnings?
Answers
Answer: The 3rd one is the correct answer
Step-by-step explanation:
Some pls help me I’ll give out brainliest please dont answer if you don’t know
Answers
Answer:
−
8
n
+
24
Step-by-step explanation:
The simple interest on $600 saved for 3 years at an interest rate of 6 percent. Find the interest
Answers
Answer:
interest = $108
Step-by-step explanation:
interest = p * r * t
interest = 600*0.06*3
interest = $108