Is x = 6 a solution to the equation 5(x – 3) = x + 13?
Follow the steps to find out.
1. Rewrite the equation 5(x – 3) = x + 13 with 6 substituted for x. Write a question mark over the equal sign to show that you're testing to see if the equation is true.
ill give brainliest
Yes, both equations will always work, but yes, at times it is more logical to use one over the other. for instance:
x-4y=6
x+4y=12
we see here that elimination would best fit:
x+x+4y-4y=6+12
or:
x=2y-3
7x+3y-81=23
substitute (2y-3) for x.
Also, once you have a single placeholder, put it ito quadratic form (ax^2+bx+c=0)
and use the quadratic formula:
x=(-b±sqrt(b^2-4ac))/2a
Answer:
yes
Step-by-step explanation:
please help
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Answer:
40 degrees
Step-by-step explanation:
A full triangle is 180 degrees
85+55=140
180-140=40
The sum of two numbers is 37 and the difference is 9. What are the numbers
Answer:
23 and 14
Step-by-step explanation:
4x-1=10+4x equations with special cases
Answer:
No solution
Step-by-step explanation:
With some linear expressions like this one, the answer will turn out to be 0, so your answer would be no solution
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Answer:
(1, -2)Step-by-step explanation:
Point A has coordinates:
A(2, 1)Rule of 270° rotation:
(x, y) → (y, - x)Coordinates of A':
A' = (1, -2)Use the quadratic formula to solve for x.
8x²-7x+1=0
(there may be more than one solution, if so, separate them with commas.)
x = _
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1/10( x + 130) = -2(3-X)
I need help
Answer:
x = 10
Step-by-step explanation:
1/10(x + 130) = -2(3 - x)
x + 130 = -20(3-x)
x + 130 = -60 + 20x
x - 20x = -60 - 130
-19x = -190
x = 10
"David is three years older than Jim. Tom is 5 years yunger than Jim. The sum
5
of their ages is 34 year. Find their ages.
Answer:
what are you saying
Step-by-step explanation:
this question is not correct
-2 x -6 x -4 =
Please help
Answer: -8x-4
Step-by-step explanation:
The equation is supposed to be simplified.
-2x-6x=8x
8x-4
ILL GIVE BRAINLIEST AND EVERYTHING ELSEEE HELP
Answer:
6 x's and 9 ones
Step-by-step explanation:
1.What is a number that is a multiple of two or more numbers
Answer:
Step-by-step explanation:
After 4 new students joined a class, the class had 32 students.
Which equation can be used to find x, the number of students in the class before the students joined?
A. x/4 = 32
B. x - 4 = 32
C. 4x = 32
D. x + 4 = 32
Find the missing length indicated
I WILL GIVE BRAINLIEST TO CORRECT ANSWER
Answer:
a 9 cause they both expand by one
Tom bought 7 new baseball trading cards to add to his collection the next day his dog ate half of his collection. There are now only 38 cards left how many cards did Tom start with someone help me please!
Answer: 83 cards
Step-by-step explanation:
38 x 2 + 7 = 83
2(n + 5) = −2 pls show your work
Answer:
2(n + 5) = -2
2n + 10= -2
2n = -12
n= -6
Step-by-step explanation:
Last week Jack ran 18 miles more than Pranav. Jack ran 34 miles. How many miles did Pranav run?
Hello there!
Step-by-step explanation:
If Jack runs 34 miles, and Pranav runs 18 less, this signifies that we need to subtract 18 from Jack's total miles to get his miles ran.
34 - 18 = 16
Pranav ran 16 miles.
*4. What is (2.0 x 10-1)3 in
scientific notation?
A 2.0 x 10 -3
1
B 2.0 X 1/10 3
C 8.0 X 1/103
D 8.0 x 10 -3
Answer:
D
Step-by-step explanation:
My stepsister got stuck in the dryer what do I do??
Answer:
Orange + Black...
Step-by-step explanation:
A triangle has one angle that measures 70 degrees, one angle that measures 42 degrees, and one angle that measures 68 degrees. What kind of triangle is it?
Answer:
Scalene Acute Triangle
Step-by-step explanation:
The triangle above is an "acute triangle" because the measurement of each angle is less than 90°. However, there are three types of acute triangle and these are: Equilateral Acute Triangle, Isosceles Acute Triangle and Scalene Acute Triangle.
When all the angles have the same measurement of less than 90°, then it is an Equilateral Acute Triangle. If only two angles have the same measurement, it is an Isosceles Acute Triangle. If none of the angles are the same but all are less than 90°, which also means that the sides are also unequal, then it is an Scalene Acute Triangle.
The triangle above has different angle measurements of less than 90°. Therefore, it is an Scalene Acute Triangle.
Jessie served 11 pints of orange juice at her party. How many quarts of orange juice did she serve
Answer:
5 and 1/2 quarts
Step-by-step explanation:
A quart is 2 pints
Answer:
5 and 1/2 quarts
Step-by-step explanation:
4k + 2 - k + 7 just answer it
Answer:
3k + 9
Step-by-step explanation:
Mario start collecting stamps in January and buys 12 stamps each month.Karen starts collecting stamps in July and buys 18 starts each month. how many months after Karen starts collecting stamps will she have the same number of stamps as Mario?
Answer:
12 months
Step-by-step explanation:
Given that:
Mario:
12 stamps per month
Since January
Karen :
18 stamps per month
Starts on july
Number of stamps collected by Mario till the end of June :
12 * 6 = 72 stamps
For Mario :
72 + 12x
For karen:
18x
Where x is the number of months after karen starts :
Equate both equations
72 + 12x = 18x
72 = 18x - 12x
72 = 6x
x = 72/6
x = 12
After 12 months
Number of months after karen starts, will they have same amount of stamp
Help
PleSe due now!!!!!
Answer:
1/2
Step-by-step explanation:
3/6 = 1/2
Answer:
1/6
Step-by-step explanation:
in case of one fair die, each face has the same probability, thus, P of each number is equally 1/6
*WILL MARK BRAINLIEST*10 POINTS
How many triangles can be made given the following angles?
33°, 42°, 66°
A: One triangle
B: More than one triangle
C: No triangle can be made
*WILL MARK BRAINLIEST*
Find the circumference of the circle.
A: 47,1 in
B: 22 in
C: 10.5 in
D: 35 in
Answer:
C≈47.12, or 47.1
Step-by-step explanation:
To find the circumference you just use the formula C=2[tex]\pi[/tex]r.
The radius of your circle is 7.5 which is half of 15, now multiply 2[tex]\pi[/tex](7.5) which gives you your answer!
An even easier way to do this is to use the other formula C=d[tex]\pi[/tex],
Just multiply your diameter (which is what was given to you) by pi and you also get your answer!
Hope this helps! :)
Help me pleaseeeeeeeee
Answer is 25 good luck!
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Answer:
a) pentagon
b) concave
c) not regular
Step-by-step explanation:
a) this polygon has 5 sides, known as a pentagon
b) it is concave because you can connect the top two vertices with a diagonal which will be outside the shape
c) a regular polygon is equilateral (all sides equal) but the markings show that is not the case with this shape
MATH HELP PLZZ!! MARKING BRAINLIEST!!!
Answer:
1 1/2 y
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
recall that graphically, a solution to two equations when expressed in a graph, is simply the coordinate of the point of intersection.
in our case, it clear that the blue and red lines intersect at (-2,0)
if we compare this to your question, it is clear that [?] = 0
Solve the system of equations.
5x - 7y = 58
y = -x + 2
х =
y =
Answer:
the x and y is 6 and -4 respectively
Step-by-step explanation:
The computation of solving the system of equations is given below:
Given that
5x - 7y = 58
And,
y = -x + 2
Put y value in the first equation
5x - 7(-x + 2) = 58
5x + 7x - 14 = 58
12x = 58 + 14
12x = 72
x = 6
So y = -6 + 2
= -4
Hence, the x and y is 6 and -4 respectively
The algebraic rule for a reflection over the x-axis is one for the following:
A. (x,y), -axis → (-x,y)
B. (x,y), -axis → 0,x)
C. (x,y), -axis → (x,- y)
D. (x,y)x-axis →(-x-y)
Answer:
C
Step-by-step explanation:
When reflecting around the x axis, the x value stays the same and the y- will change.