Answer:
x= -2
Step-by-step explanation:
Let's solve your equation step-by-step.
15−10x=5(x+9)
Step 1: Simplify both sides of the equation.
15−10x=5(x+9)
15+−10x=(5)(x)+(5)(9)(Distribute)
15+−10x=5x+45
−10x+15=5x+45
Step 2: Subtract 5x from both sides.
−10x+15−5x=5x+45−5x
−15x+15=45
Step 3: Subtract 15 from both sides.
−15x+15−15=45−15
−15x=30
Step 4: Divide both sides by -15.
−15x/-15 = 30/ -15
x= −2
The point (x, y) is proportional to the point (2, 5).
Select all the true statements.
A. (x,y) is a solution to y=5/2x.
B. (x, y) is a solution to y=x+3.
C. The ratio of is equivalent to 5/2:
D. Point (x,y) is the same point as (5,2).
E. A straight line through points (2, 5) and (x,y) will pass through the origin.
Answer:
did u get the answer??
Step-by-step explanation:
if so plz help
7). What is the area of a
rectangle with a base of
17in and height of 23in?
Answer:
80inches
Step-by-step explanation:
17+17=34
23+23=46
34+46=80
Twice the difference of 1 and a number.
someone help work out the mean!!
Answer:
8.2
Step-by-step explanation:
what is an equation of the line that passes through the point (5,1) and is parallel to the line x+y=9
A jogger has decided to jog as a warm-up and has decided to vary her speed from minute to minute. Below is the data of her jogging times and distances. The distance recorded is the total distance traveled from time zero up until the measured time. Please create a distance vs. time line graph to properly display this data. Be sure to include all parts of a good graph. When finished drawing your graph, answer the questions below using your graph
Answer:
how much heat is needed to raise the temperature of 20g cooper from 25c to raise the temperature of 20g of cooper from 25 c to 40c?
Step-by-step explanation:
Solve the simultaneous equations
2x + 4y = 22
2x + 2y = 15
Answer:
1. x= 11+-27
2.x = 7.5 + -1y
Step-by-step explanation:
1. Move all terms containing x to the left, all other terms to the right.
Add '-4y' to each side of the equation.
2x + 4y + -4y = 22 + -4y
Combine like terms: 4y + -4y = 0
2x + 0 = 22 + -4y
2x = 22 + -4y
Divide each side by '2'.
x = 11 + -2y
Simplifying
x = 11 + -2y
2.Move all terms containing x to the left, all other terms to the right.
Add '-2y' to each side of the equation.
2x + 2y + -2y = 15 + -2y
Combine like terms: 2y + -2y = 0
2x + 0 = 15 + -2y
2x = 15 + -2y
Divide each side by '2'.
x = 7.5 + -1y
Simplifying
x = 7.5 + -1y
how much is 21.6 cm put in to inches
how do you find the axis of symmetry?
Answer:
The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .
Step-by-step explanation:
Answer:
x=-b/2a
Step-by-step explanation:
axis of symmetry is the line that across the vertex from a parabola(ax^2+bx+c).
The expression to find vertex is -b/2a
Thus, x=-b/2a is a vertical line that across the vertex aka the axis of symmetry.
Help I don’t get it pls help
Answer:
The average speed would be 10.1 kilometers per hour.
Step-by-step explanation:
If we convert both times into minutes, it will make solving this much easier. After finding the speed for both legs, we can find the average by adding the two values together and dividing by 2. This results in 10.11430568 or can be rounded to 10.1.
Solve.
3/5x - 7 = 23
A. x = 40
B. x = 45
C. x = 50
D. x = 55
Answer:
(C) x=50
Step-by-step explanation:
[tex]\frac{3}{5 }x -7=23[/tex]
[tex]\frac{3x}{5} -7=23[/tex]
[tex]\frac{3x}{5} -7+7=23+7[/tex]
[tex]\frac{3x}{5}=30[/tex]
[tex]3x=30* 5[/tex]
[tex]3x=150[/tex]
[tex]x=50[/tex]
Answer:
(C) X = 50
Step-by-step explanation:
(3/5)*x-7 = 23 // - 23
(3/5)*x-23-7 = 0
3/5*x-30 = 0 // + 30
3/5*x = 30 // : 3/5
x = 30/3/5
x = 50 (Sorry if it's wrong)
Adam bike 15 miles in 3 hours. Ben bike 12 miles in 2 hours. What was there speed?
A biology class examined some flowers in a local meadow. The students saw 88 perennial
flowers and 12 annual flowers. What percentage of the flowers were perennials?
Answer:
88%
Step-by-step explanation:
someone help its due
Answer:
15
Step-by-step explanation:
PQR = 150.
RPQ = PRQ
RPQ + PRQ = 30
RPQ = 15
Please help me graph
Y=1.5x
Will mark brainliest!!
How to solve 2x-3(9-2x)=-11
Answer:
x=2 hope this helps
Step-by-step explanation:
select all relations that are functions from the choices below.
Find the missing length
I WILL GIVE BRAINLIEST
Answer: 30
Step-by-step explanation: Assuming that the side lengths correspond with one another you can set up a ratio to solve
It should look something like this: 15/25 = 18/x
With this equation set up you can solve by cross multiplying. 25(18)=15x
Then start sloving:
25(18)=15x
450=15x
450/15=15x/15 (divide both sides by 15)
30=x
What is 33127 rounded to the nearest 100
Answer:
33127 rounded to the nearest 100 is 33100
Step-by-step explanation:
Answer:
33100
Step-by-step explanation:
the numbers themselves dont go over 50
since its 27 its at tens are 2
we need a five to go over
therefore it doesnt
round up it stays at 100
use this answer hope it helped !
is y=x^8 an exponential function
multiply. (x^2-5x+2)(3x^2+2x+3)
Answer:
3x^4-13x^3-x^2-11x+6
Step-by-step explanation:
Checked this on a website for you btw!
Answer:
3x^4-13x^3-x^2-11x+6
Step-by-step explanation:
HELP WHAT IS THE RECIPROCAL OF 3 5/6
Answer:
6/23
Step-by-step explanation:
PLEASR HELP ASAP!!!!!!! i’ll mark brainlest
6x^{2} + 19 + 9x^{2} - 8
With Explanation
Answer:
I'mnot sure if you're asking for its roots..but here you go :)
Step-by-step explanation:
[tex] = 6 {x}^{2} + 19 + 9 {x}^{2} - 8 \\ = (6 {x}^{2} + 9 {x}^{2} ) + (19 - 8) \\ = 15 {x}^{2} + 8 \\ 15 {x}^{2} = - 8 \\ {x}^{2} = - \frac{8}{15} \\ \sqrt{ {x}^{2} } = \sqrt{ - \frac{8}{15} } \\ x = \sqrt{ \frac{8}{15}} \times \sqrt{ - 1} \\ x = \sqrt{ \frac{8}{15} } \times i \\ x1 = 0.7302i \\ x2 = - 0.7302i[/tex]
the school store sold five pencils for eleven dollars. determine the cost per pencil
11/5 = $2.2 per pencil at the school store.
Answer:
2.20
Step-by-step explanation:
do anyone know about this ?
Two parallel lines are cut by a transversal as shown below.
Suppose m<8=109. Find m<2 and m<3.
Answer:
measure 2 has to be 109 due to the alternate interior angles theorem. Measure 3 has to be 71 due to the supplementary angles theorem.
Angles 8 and 2 are alternate interior angles so they will be the same therefore,m∠2 and m∠3 will be 109° and 71° respectively.
What is an angle?An angle is a geometry in plane geometry that is created by 2 rays or lines that have an identical terminus.
The identical endpoint of the two rays—is known as the vertex.
Given two parallel lines a transversal.
Angles 8 and 2 are alternate interior angles.
m∠8 = m∠2
m∠2 = 108°
Now,m∠2 and m∠3 are supplementary angles.
Therefore,m∠3 = 180° - 108° = 71°
Hence "Angles 8 and 2 are alternate interior angles so they will be the same therefore,m∠2 and m∠3 will be 109° and 71° respectively".
For more about the angle,
brainly.com/question/13954458
#SPJ2
8+ (10-7)
in word form
Answer:
eight plus the answer to 10 minus 7
Step-by-step explanation:
theres no explanation really.
Answer:
Eleven
Step-by-step explanation:
8+( 10-7)
8+ ( 3)
8+3
11
The reason why we don't multiply 8 by 3 is because the parenthesis is multiplying a plus sign not 8
A rectangle is 12 inches long and 2 inches wide. Find its area. A 22 square inches 14 square inches 24 square inches 26 square inches
Area of given rectangle = 24 square inches.
The correct option is C.
What is rectangle?A rectangle is cyclic: all corners lie on a single circle. ; It is equiangular: all its corner angles are equal (each of 90 degrees).
Given,
Length of rectangle = 12 inches
Width of rectangle = 2 inches
Area of rectangle = length × width
= 12 × 2
Area of rectangle = 24 square inches.
Hence, 24 square inches is the area of rectangle.
Learn more about rectangle here:
https://brainly.com/question/29123947
#SPJ1
My spanish teacher just embarrassed me in front of everyone. How is everyone else doing?
Answer:
Don't wanna do math :(
Step-by-step explanation: