Answer: -1.71
7(x+3) = 9 is the equation
7x+21 = 9
7x = -12
x= -12/7
x= -1.71
geometry:(
*image shown above*
Answer:
c = 44
Step-by-step explanation:
help plsssssssssssssss
Answer:
The golf ball is 2 times as likely to be orange as it is to be pink
Step-by-step explanation:
Anyways, i hope this is right and i hope i helped!
Solve each of the following inequalities:
(if you could ,pls show me the steps.im kinda clueless in this topic)
1-) 15 + 3x < 21
2-)18 ≤ 7y + 4
3-) 19 - 4x ≥ 27
Answer:
1.x=12
2.y=2
3.x=2
Step-by-step explanation:
Solving an Inequality with No Solution
Write the inequality.
Distributive Property
Subtract 8x from each side
Simplify.
Solve for y. 3y - 2x = 9
What is the slope of the line shown in the graph?
-undefined
-3/2
- -3/2
- -1/2
Answer:
2/3
Step-by-step explanation:
A recommendation for wheelchair ramps is that the rise-to-run ratio be no greater than 1:12. This ensures that the ramps are navigable by people in wheelchairs. If a business needs to install a concrete ramp to the entrance of their building, which is 12 inches off the ground, how long should the ramp be and how far out horizontally on the ground will it protrude from the building? Give answers in feet and inches, such as 5 feet, 4 inches. What percent grade is the ramp?
Answer:
a. 12 feet b. 12 feet 0.5 inches c. 8.33 %
Step-by-step explanation:
a. How far out horizontally on the ground will it protrude from the building?
Since the rise to run ratio is 1:12 and the building is 12 inches off the ground, let x be the horizontal distance the ramp protrudes.
So, by ratios rise/run = 1/12 = 12/x
1/12 = 12/x
x = 12 × 12
x = 144 inches
Since 12 inches = 1 foot, 144 inches = 144 × 1 inch = 144 × 1 foot/12 inches = 12 feet
b. How long should the ramp be?
The length of the ramp, L is gotten from Pythagoras' theorem since the ramp is a right-angled triangle with sides 12 inches and 144 inches respectively.
So, L = √(12² + 144²)
= √[12² + (12² × 12²)]
= 12√(1 + 144)
= 12√145
= 12 × 12.042
= 144.5 inches
Since 12 inches = 1 foot, 144.5 inches = 144 × 1 inch + 0.5 inches = 144 × 1 foot/12 inches + 0.5 inches = 12 feet 0.5 inches
c. What percent grade is the ramp?
The percentage grade of the ramp = rise/run × 100 %
= 12 inches/144 inches × 100 %
= 1/12 × 100 %
= 0.0833 × 100 %
= 8.33 %
i need help with this asap pls i will give brainliest !! it’s my last question!!!! Pls
Answer:
D is the correct answer
Step-by-step explanation:
Needs help fast, I can’t get the right answer
9514 1404 393
Answer:
2/3
Step-by-step explanation:
The ratio of any corresponding coordinates will give the scale factor.
Using the x-coordinates of C' and C, we have ...
scale factor = C'/C = 4/6 = 2/3
The dilation scale factor is 2/3.
whos good with "Solving Equations with Fraction and Decimal" algebra. ?
Answer:
ME!!!!!!!!!!
Step-by-step explanation:
do you have a equation for me???
PLEASE SOMEONE DO THIS QUESTION FOR ME ASAP!! GIVING BRAINLIEST
Answer:
5:15
Step-by-step explanation:
6^2 + b^2 = 24^2 solve for b
Answer:
the answer is b=18
Step-by-step explanation:
Solve.
4x+3y=5
2x+3y=1
x=?
y=?
Answer:
x = 2, and y = -1. Point form: (2, -1)
Step-by-step explanation:
You solve the system of equations, by solving for one variable, and then subsitiute that variable into the other equation.
The value of x = 2
The value of y = -1
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the first equation be = A
Let the second equation be = B
Now , we have two equations
4x + 3y = 5 be equation (1)
2x + 3y = 1 be equation (2)
Now , on simplifying the equations , we get
Subtracting equation (2) from equation (1) , we get
2x = 4
Divide by 2 on both sides , we get
x = 2
Substitute the value of x in equation (1) , we get
4 ( 2 ) + 3y = 5
8 + 3y = 5
Subtract 8 on both sides , we get
3y = -3
Divide by 3 on both sides , we get
y = -1
Therefore , the value of x and y is 2 and -1 respectively
Hence , The value of x = 2
The value of y = -1
To learn more about equations click :
https://brainly.com/question/10413253
#SPJ2
14. Given: trapezoid WXYZ with midsegment ST. If WZ = 15 and ST = 20, find the length
of XY.
A. 10
B. 25
C. 5
D. 35
(GIVING BRAINLIEST!!)
Fred has 1/3 of a cake. He shares it among 3 of his friends. How much cake does each friend get?
A) 1/3 cake
B)1/6 cake
C) 1/9 cake
D) 1/12 cake
Answer:
1/9
Step-by-step explanation:
Divide 1/3 divided by 3 (1/9)
Keep, Change, Flip
(Keep the first fraction, change the division sign to multiplication sign, flip the last fraction)
The equation would be
1/3*1/3=1/9
Hope I helped!! :)
Pls mark brainliest if correct!!!
What is the equation of this graph? Pre-calc semester B PLATO
Answer:
D
Step-by-step explanation:
The other ones don’t match up to the graph
Someone help meeee??? Pleaseeee
Answer:37
Step-by-step explanation:
(5x7)+2
35+2
=37
I need help with a question that has to do with Ratio and Proportion. I want to know how to do it, not just only the answer.
Answer:
y is = 15
please mark me as brainest
Answer the following question images
Answer like this
If the question number on the picture is 9 and the answer was b
9b answer like this please
Answer:
8c
9a
7c (just going in order of pictures lol)
10d
6a
Step-by-step explanation:
8. 180-68=5x+12
112=5x+12
100=5x
x=20
9. 180-100=2x
80=2x
x=40
7. 2x+x-3=90
3x=93
x=31
10. 180-70-60=8x+2
50=8x+2
48=8x
6=x
6. 3x=45
x=15
convert these sums into decimal.
(a) (b)
3 13
--- ----
5 20
(c) (d)
13 8
----- -----
125 25
multiple questions problem please help me please will give
Answer:
42
Step-by-step explanation:
the answer is 42
Answer:
42 sandwiches
Step-by-step explanation:
10 1/2 DIVIDED BY 1/4 equals 42!
(I hoped that helped, there wasn't really any other way to explain it!)
Stephanie put $80 in her bank account when she was 5
years old. The bank gave her a simple interest rate of 2.1%.
Does she have enough money to buy a TV for $1,000 after
leaving her money in the bank for ten years?
Answer:
Mynd44
Step-by-step explanation:
Here, we want to check if the amount of money saved is enough to
by a tv
Mathematically, we have the simple interest formula as follows;
I = PRT/100
I = (80 * 2.1*10)/100
I = 1680/1000 = 1.68
Hence, she will not have enough
If x + 2y = -6 and 5x + 9y = 7 are true equations, what would be the value of
-4x – 7y?
Answer:HELP BRU
Step-by-step explanation:
Answer:
-13
Step-by-step explanation:
Find the area of all shaded regions. Give your answer as a completely simplified exact value in terms of pi. (no approximations)
To find the area of the shaded region, you first use the equation A = πr²
The radius of the circle is 9 cm. So A = π(9²)
A = 3.14 (81)
A = 254.34 (entire circle)
The entire circle is 360°
and 4.5 of the 80°'s will equal 360°
254.34 ÷ 4.5 = 56.52
ANSWER: 56.52 cm²
Answer:
56.55 cm^2
Step-by-step explanation:
Since a circle is 360 degrees and the piece is 80 degrees, the shaded area is 4.5 of the total area of the circle (9/2). Find the area of the circle:
[tex]\pi r^{2}[/tex]
[tex]\pi 9^{2}[/tex]
[tex]\pi 81[/tex]
[tex]254.47/4.5[/tex]
56.55 cm^2
4. What is the product of the polynomials shown below? (2x - 5)(x + 7)
Answer:
2x^2+9x-35
Step-by-step explanation:
(2x-5)(x+7)
=2xx + 2x x 7 + (-5)x + (-5) x 7
=2xx + 2 x 7x - 5x - 5 x 7
=2x^2+9x-35
please help!!!!! :(((
Answer:
tho im very confused what 1.25 means. im pretty sure its 1 1/4
At a store, notebooks are on sale for 78% off the regular price. The cost of a notebook is represented by n. Which of the following expressions does NOT represent the sale price of the notebooks?
Answer:
I Think Its D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Cindy spent 65.25 on ingredients for blueberries pies and 62.84 on ingredients for cherry pies each slice is 3.50$. HELP PLSS
f is inversely proportional to √ g . When f = 10 , g = 121 Work out g when f = 11
Answer:
Hope the attached helps!
Step-by-step explanation:
(7x −4 y 15 )(4x 14 y −3 )
Answer:
=11x+10y+12
Step-by-step explanation:
7x +4x -4y+14y 15-3
11x 10y 12
=11x+10y+12
Consider the line with a slope of -1 through the point (-1,3).What is the y-intercept (b) of the line
Answer:
y = -x + 2
Step-by-step explanation:
slope = -1 ; (-1 , 3)
Equation: y - y1 = m (x - x1)
y - 3 = (-1)(x -[-1])
y - 3 = (-1) (x + 1)
y - 3 = -x - 1
y = -x - 1 + 3
y = -x + 2
Answer:
y=-x+2
Step-by-step explanation:
