MATHEMATICS HIGH SCHOOL

Solve for x.
3(x + 5) - 2(x + 2) = 20

Answers

Answer 1
Answer: 3(x + 5) - 2(x + 2) = 20

Distribute the 3 and -2.

3x + 15 -2x - 4 = 20

Simplify.

x + 11 = 20

Subtract 11 on both sides

x = 9

Your final answer is x = 9.

Related Questions

What is the circumference of a circle that has a radius of 10 centimeters? Round your answer to one decimal place. C = a0 cm
Carol flips a coin, rolls a standard number cube, and randomly chooses a shape from the list below. Find the probability that the coin will show tails, the cube will show a multiple of 2, and a circle will be chosen. (the shapes are a - circle, triangle, square, and parallelogram)
Find the value of y that satisfies the equation, 8.8y - 4 = 7.7y + 7.a) 1.1, b) 7.7, c) 8.0, d) 10.0, e) 11.0Is the 11  right answer ???? I don't understand this..
Find the rectangular coordinates of the point with the polar coordinates (7, 2pi/3)
Write the expression as either the sine, cosine, or tangent of a single angle. sin(pi/2)cos(pi/7)+cos(pi/2)sin(pi/7)

What is the solution of this system of linear equations 3y=3/2x+6

Answers

Answer:

C.) No solution

Step-by-step explanation:
3y=3/2x+6

Just divide 3 by both sides. 

3/2 divided by 3/1
3/2 * 1/3 = 1/2

y = 1/2x + 2 is the solution

21²/0.219 to 2 significant figures​

Answers

21^2/0.219 = 2013.69863
2 significant figures are the 20, so the answer is 2000
The answer is 2000…..

HelpI have a math assignment for you. The property we live on is odd shaped & I'm trying to confirm the properties square footage. I have two different figures. So your assignment, if you wish to do so,(that's from mission impossible) is to determine the square footage of the property.Dimensions are as follows:
East side (Highbury St side) 133.78 ft.
North side (neighbour) 120.00 ft.
South side (laneway) 136.6 ft.
West side 66.1 ft.

Help Please

Answers

(NOTE: I hope this is not for legal reasons. if if it is, then don't quote me on this)




if there are 2 right angles (as said in comments, then you can divide the shape into a rectangle and a triangle as sseen in the attachment (not to scale)
we can do this since there are 2 right angles in the places mentioned in the comments (NE and NW
then find the areas of each
(the right angles. are in yellow ink)
area of rectangle=legntht times widht
legnth=120
width=66.1
area=120 times 66.1=7932


find the area of the triangle so we see that we can find the height of the triangle by subtracting 66.1 from 133.78 to find the triangle's height
height=67.68
legnth is the same
area of triangle=1/2 times base times height
base=legnth=120
height=67.68
area=1/2 times 120 times 67.68=4060.8
now add the areas together


rectangle=7932 ft^2 or square feet
triangle=4060.8 ft^2

rectangle+triangle=whole=7932+4060.8=11992.8 ft^2

answer is 11,992.8 ft^2 or 11,992.8 square feet

Consider the quadratic function f (x)= x2-5x+6

Answers

a is the coefficient of x² and is 1
b is the coefficient of x and is -5
c is the term without x and is 6
a=1 b=-5 and c=6 its easy

(01.02) The number of roses (r) in a garden increases when the number of weeds (w) decreases. Write the correct equation for this scenario, and solve for the number of roses when there are 5 weeds.

Answers

Answer:

-1w=1r

If there are 5 fewer weeds, there will be 5 more roses

Step-by-step explanation:

The question states that the roses increase when the weeds decrease.

A data set consists of the following data points:(2, 12), (3, 7), (5, 4)

The slope of the best-fit line is -2.5. Find the y-intercept of this line.

A. 14
B. 13
C. 15
D. 16

Answers

Since the slope of the line is already given, by plotting the three points and drawing a best fit line using the given slope and extending the line to hit the x-axis, the y-intercept can be determined. Line-fitting tools can also be used; common scientific calculators have that feature.
So, the answer is D. 16
Other Questions
Jessica rented a truck to move into another apartment. The rental charge is $140 per day plus $0.35 per mile. Write an equation to determine x, the number of miles she can drive the truck if the cost is y.
What is one extensive and one intensive property of marker ink?
Sin(x-20)=1/root2 This question is confusing me.
Steve can complete the hundred meter dash in 10 seconds while Paul can run it in 12 seconds how does Steve's time compared to Paul's