Answers
78=2x+12
66=2x
33=x
The answer is 33
Related Questions
Help ASAP!!!!!!!!!!!!!!!! (25 POINTS + BRAINLIEST)
A rectangular prism has a square base with side length s units. It also has the curious property that the numerical value of the sum of its edge lengths (in units) is equal to the numerical value of its surface area (in square units).
If one edge of the prism has length 8 units and s 6= 8, then s can be written in the form a + √b, where a and b are integers. Find a + b.
Answers
Find the value of the expression 30 – 3 2÷ 3 + 8(2).
Answers
Answer:
44
Step-by-step explanation:
30 - 3x2÷3 + 8x2
= 30 - 6÷3 + 16
= 30 - 2 + 16
= 28 + 16 = 44
Zach's baseball team is raising money for a charity. Zach is tasked with raising at least $250. If represents the amount of money Zach raises, which inequality represents this situation?
a. x>250
b. x<_250
c. x>_250
d. x<250
Answers
Answer: x ≥ 250
Step-by-step explanation:
find the distance between the points E(3,7) and f (6,5)
Answers
Answer:
(2,2)
Step-by-step explanation:
If you graph the points out and count from up or down to left or right, I beleive this is the answer you'll get.
Answer:
3.6056 or square root of 13
Step-by-step explanation:
Vhat is the equation of the line that is parallel to the
given line and passes through the point (2, 3)?
O x + 2y = 4
O x + 2y = 8
O 2x + y = 4
O 2x + y = 8
Answers
Step-by-step explanation:
second one because
only x+2y=8 passes through the point (2,3)
the proof is 2+2*3=2+6=8
if we replace the given point to the other equations we will take wrong results for example
first equation
x+2y=4. 2+2*3=2+6=8 that is not equal to 4
Slopes of lines which are parallel to each other is same. The equation of the line which is parallel to y = mx + c and passes through (2,3) point is y = m(x-2) + 3
How are parallel straight lines related?Parallel lines have same slope, since slope is like measure of steepness and since parallel lines are of same steepness, thus, are of same slope.
In the line of the form [tex]y = mx + c[/tex], the coefficient of x, which is 'm' here, is the slope of the line [tex]y = mx + c[/tex]
Suppose that the given line be:
[tex]y = mx + c[/tex]
(we assume this, because the question is a bit incomplete as the initial line isn't given)
And we've to find the equation of a line which is parallel to the line given above, and passes through (2,3).
Suppose it be:
[tex]y = mx + b[/tex] (as the slope of parallel lines would be same).
This line passes through (2,3), so the equation must be true for (x,y) = (2,3).
Putting it, we get:
[tex]y = mx + b\\3 = m(2) + b\\3 - 2m = b[/tex]
Thus, the equation of this line is:
[tex]y = mx + b \\y = mx + (3-2m)\\y = m(x-2) + 3[/tex]
Learn more about parallel lines here:
https://brainly.com/question/13857011
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of the 50 students in the cafitera, 7 have red hair. If there are 750 students in the school, predict the number of students who have red hair.
Answers
7:50
7 being those with red hair, to the 50 students.
There are 750 students total, so to get there multiply each side of the ratio by 15.
105:750
Therefore, a prediction you could make is that 105 students have red hair.
Aaliyah invested $350 in an account paying an interest rate of 4% compounded continuously. Assuming no deposits or withdrawals are made, how much money, to the nearest dollar, would be in the account after 20 years?
Answers
Answer:779
Step-by-step explanation:
Delta
Please answer asap
Use the graph to determine the input value for which f(x) = g(x) is true.
x = 0.5
x = 1
x = 1.5
x = 2
Answers
When x=1.5 on the graph, f(x) and g(x) intersect, meaning they are equal here.
Hope this helps!
What is 8/9 - 1/18? Please put in fraction form.
:)
Answers
Answer:
5/6
Step-by-step explanation:
8/9=16/18
16/18-1/18=15/18
15/18 divided by 3 is 5/6
Answer:
5/6
Step-by-step explanation:
What is the slope of a line parallel to the line whose equation is 22 - y = 7. Fully
reduce your answer.
Answers
Answer:
The slope of the parallel line is 2
Step-by-step explanation:
Parallel lines have equal slopes, so for this question you need to re-format the equation to match a y=mx+b format (slope-intercept form).
2x -y = 7 | Subtract 2x from both sides
-y = 7 + 2x | Multiply by negative one to make y even
y = 7 + 2x | Rearrange the equation to match the formula
y = 2x +7 | 2 is your slope for both parallel lines!
A girl is swimming 1 meter below sea level and dives down another .5 meters. How far below sea level is she now?
Answers
Answer:
1.5 meters
Step-by-step explanation:
If she is already below sea level by 1 meter and she goes down .5 meters more, she would be 1.5 meters below the sea level.
Please help me, if correct get brainliest
Answers
Answer:
If I am correct the answer should be graph it !!!! first quadrant
corners
(0,0)
(0,3)
(1.5 , 3.5) intersection
(5,0)
evaluate 6x-4y at those corners
0
-12
-5
+9
makes sense, need big x and small y :)
Step-by-step explanation:
I apologize if I am incorrect I am only in 7th grade but I am pretty intelligent so please try it out!
You move right 2 units and left 10 units. You end at (-5, -1). Where did you start?
Answers
Answer:
(-13,-1)
Step-by-step explanation:
Moving right means moving positively on the x-axis
Moving left means moving negatively on the x-axis
Follow the equation backwards using the x-coordinate:
Move left 10 units-- -5-10 = -15
Move right 2 units-- -15+2 = -13
Since the y-coordinate did not change, the point you started at is (-13,-1)
Someone please help!!!!!!!!!
Answers
Answer:
-32
Step-by-step explanation:
Simply input the x and y values.
New equation:
| 147-(-9) | /(-4) +7
Step one:
147-(-9) = 156
Step two:
|156|/-4 =-39
Step three:
-39+7 =-32
If you evaluate the expression it comes out to -32
Are f and g inverses of each other?
Answers
Answer:
The answer is: g ( x) and f ( x) are not inverses of each other.
Step-by-step explanation:
This is why you need to check both ways: sometimes there are fussy technical considerations, usually involving square roots, that force the composition not to work, because the domains and ranges of the two functions aren't compatible.
Hope this helps : )
Beth bought 35¢ stamps and 15¢ stamps at the post office. If she purchased 60 stamps at a cost of $17, how many of each kind did she buy?
Answers
Answer:
She buys 20 Stamps of $0.15 and 40 Stamps of $0.35.
Step-by-step explanation:
40 x 0.35 = 14
20 x 0.15 = 3
$14 + $3 = $17
40 ($0.35) + 20 (0.15) = 60 stamps
C) Work out 3/4 × 5 (Give your answer as the simplest mixed fraction).
Answers
Answer: 3 ¾
------------------
Answer:
15/4=3 3/4
Step-by-step explanation:
3 and 3/4 is the awnser
What is 3/4 of a dollar forgot will mark Brainliest if right
Answers
Answer:
0.75 U.S. dollars
Step-by-step explanation:
If you're talking U.S dollar. It's 0.75 cents.
This doesn't seem like college work.
QUADRATIC EQUATION – WORD PROBLEMS
Fatima got 16 marks more than Zahra in Math test. The product of their mark is 1380. Find their marks.
The answer 30 ,46
I just need the steps
Answers
Answer:
Fatima's points = 46
Zahra's points = 30
Step-by-step explanation:
Let's give names to the unknowns (the number of points each one got)
Fatima's points = y
Zahra's points = x
Now create the equations given by the info they provide:
"Fatima got 16 marks more than Zahra"
y = x + 16
"The product of their mark is 1380."
x * y = 1380
Now use the first equation as substitution for "y" in the second equation:
x * (x + 16) = 1380
reduce the expression:
x^2 + 16 x = 1380
x^2 + 16 x - 1380= 0
Solve using quadratic formula:
[tex]x=\frac{-16+/- \sqrt{16^2+4(1380)} }{2} \\x=\frac{-16+/- \sqrt{5776} }{2} \\x=-8+/- 38\\x = 30\,\,\,or\,\,\,x=-46[/tex]
we pick 30 since the scores from a test must be larger than zero.
Now we use the first equation to solve for the other variable;
y = 30 + 16 = 46
then x = 30 and y = 46
At the market, 8 batteries cost $10,
How much do 6 batteries cost?
Answers
Answer:
$7.50
Step-by-step explanation:
You can use proportions to find that 8/10 = 6/x
then you can multiply 10 by 6 and divide the result by 8 to get the answer.
You can also divide 10 by 8 to get 1.25 and multiply it by 6, as 10 divided by 8 gives you the unit rate, or the price of each battery. Then you multiply it by 6 to get 7.5, or the cost of 6 batteries.
Hope this helps!
PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :((
Answers
D
The reason its D is because π is a irrational and its not a real number. Search it up. Hope i get brainliest!
hope this helped :)
Find the value of an that makes each number sentence true 2/3 x N = 1
Answers
Answer:
1 1/2
Step-by-step explanation:
n= 3/2
Decimal Form:
n= 1.5
Mixed Number Form:
n = 1 1/2
(3x + 7)
(10x – 22)
What does x equal?
Answers
Answer:
3x+7=10x-22
We simplify the equation to the form, which is simple to understand
3x+7=10x-22
We move all terms containing x to the left and all other terms to the right.
+3x-10x=-22-7
We simplify left and right side of the equation.
-7x=-29
We divide both sides of the equation by -7 to get x.
x=4.14285714286
Answer:
x=15
Step-by-step explanation:
(10x-22)+(3x+7)=180
3 + (-4)
1/4 X (-1 1/2 - 1/2)
Answers
Answer:
35
Step-by-step explanation:
What is 1 and 3 quarters multiplied by 4 and 1 sixth
Answers
1_3/4 • 4_1/6
(7/4) (25/6) = 175/24
Answer: 175/24
Suppose we write down the smallest positive 2-digit, 3-digit, and 4-digit multiples of 9. what is the sum of these three numbers?
Answers
Answer: 1134
Step-by-step explanation:
I need help with this
Answers
Answer:
Not similar
Step-by-step explanation:
Even though
8/2=16/4,
10/3 does not have any relation to the rest. Still make sure if im right, but hope this helps!
You need 660 mL of a 80% alcohol solution. On hand, you have a 40% alcohol mixture. How much of the 40%
alcohol mixture and pure alcohol will you need to obtain the desired solution?
You will need
mL of the 40% solution
and
mL of pure alcohol.
Submit Question
Answers
Let a be the amount of 40% solution and b be the amount of pure alcohol that you will use.
You want to end up with a volume of 660 mL, so
a + b = 660
For each mL of solution used, the 40% solution would contribute 0.4 mL of alcohol, and the pure alcohol will contribute 1 mL of alcohol. In the desired solution, you want a concentration of 80% alcohol, so that it contains 0.8 • 660 mL = 528 mL of alcohol, and
0.4a + b = 528
Solve the system of equations above. Subtracting the second from the first eliminates b and lets us solve for a :
(a + b) - (0.4a + b) = 660 - 528
0.6a = 132
a = 220
Then
220 + b = 660
b = 440
So you will need 220 mL of the 40% solution and 440 mL of pure alcohol.
NEED HELP ASAP!! which function has a range of y is greater than or equal to 0
Answers
Answer:
c
Step-by-step explanation:
The third function has a range of y that is greater than or equal to 0.
What is a function?A function is a kind of rule that, for one input, gives you one output.
For the first function, it contains negative values for y, so it was eliminated.
The second function did not start from zero, so it was eliminated.
The third function obeys the given condition, but the last function contains negative values for y.
Hence, the third function satisfies the condition that y is greater than or equal to 0.
To learn more about function, use the link given below:
https://brainly.com/question/21145944
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In the diagram below,Ab and De bisect each other.If f is the midpoint dc, AB=20 and De=12, find the value of FC+CB.Show how you arrived at your answer.
Answers
Answer:
13
Step-by-step explanation:
AB = 20
DE =12
Since AB and DE bisect each other, therefore:
AC = CB = ½(AB)
AC = CB = ½(20)
AC = CB = 10
Also,
DC = CE = ½(DE)
DC = CE = ½(12)
DC = CE = 6
Since F is the midpoint of DC, therefore:
FC = ½(DC)
FC = ½(6)
FC = 3
Find the value of FC + CB. Plug in the values of FC and CB:
3 + 10 = 13