since y=-2x, we can substitute into the second equation to get:
-2x=-9x+21
add 9x
7x=21
divide by 7
x=3
what is 6x-18/x^2 * X^2+5x+6/x^2-9 ANSWER FAST!!!!!
9514 1404 393
Answer:
(6x+12)/x^2
Step-by-step explanation:
The product can be simplified by cancelling common factors from numerator and denominator.
[tex]\dfrac{6x-18}{x^2}\times\dfrac{x^2+5x+6}{x^2-9}=\dfrac{6(x-3)}{x^2}\times\dfrac{(x+2)(x+3)}{(x-3)(x+3)}\\\\=\dfrac{6(x+2)}{x^2}=\boxed{\dfrac{6x+12}{x^2}}[/tex]
A function is shown in the table below. What equation represents this function?
y=-33 +6
1
V
y=-33 +12
-2 12
-1
9
y=32 - 6
1
3
1
4
-6
y=-3x+6
Answer:
y=-3x+6
Step-by-step explanation:
that equation gives the answer for all the 'y'
factors that are the same number are ____. What is supported to go in the blank spot?
Answer:
i need a photo of the numbers and blank spots
How many time does 3 go into 4677?
3 goes into 4,677, 1559 times!!
Hope this helps!!!
Love: Madoriya~ <3
Answer:
x= 1559
Step-by-step explanation:
3x= 4677
x=4677/3
x=1559
If 8x – 7y =
-8 is a true equation, what would be the value of 32x – 28y?
*need it for today plz*
CORRECT ANSWER WILL BE MARKED BRAINLIEST 20 POINTS!!!!
Find the area of the shaded regions. Give your answer as a COMPLETELY simplified EXACT VALUE OF π (no approximations).
Answer:
128π - 8
Step-by-step explanation:
Hypotenuse length:
4² + 4² = 32
2π(√32/2)² = (√32)² × 2² = 2π × 32 × 4 = 2π × 128
256π is the area of the circle
Area of shaded region = area of circle/2 - area of triangle
256π/2 = 128π
128π - 16/2
128π - 8 = area of shaded region
Please Mark as Brainliest!
7/8x + 3/4x + 7/16x - 1/16 = 5/8
Karan and Preeti are sharing a packet of sweets in the ratio of 2:3 .If the total sweets is 50,how many sweets will Preeti get
Answer:
30 sweets
Step-by-step explanation:
From the above question
The ratio is given as:
Karan : Preeti
2:3
The sum of the proportion = 2 + 3 = 5
Total number of sweets = 50 sweets
The number of sweets Preeti will get is calculated as:
3/5 × 50 sweets
= 30 Sweets
Therefore, the number of sweets Preeti will get is 30 sweets
The greatest common factor of two numbers is 4. The sum of the numbers is 76. What are the two numbers? A. 38 and 38 B. 12 and 64 C. 18 and 58 D. 32 and 40
Answer: B. 12 and 64
Step-by-step explanation:
Option A is incorrect because the highest common factor for both numbers would be 38 not 4.
Option B:
Factors of 12 are: 1, 2 , 3, 4, 6, 12
Factors of 64 are: 1, 2, 4, 8, 16, 32 and 64.
Highest factor of both is 4 and they both add up to 76 so option B must be correct.
Answer:
12 and 64 !
Step-by-step explanation:
Which best describes the diameter of a circle?
Answer:
B
I hope this helps :) !
Answer:
the length of a chord that contains the center of the circle
Step-by-step explanation:
Mr.miller spends an hour and a half working in his garden. which number line could show the time Mr.miller spends working in his garden.
Answer: 3:00 4:00
Step-by-step explanation:
I’m to lazy to say why but trust me
F is inversely proportional to d squared. When F = 16 , d = 3 Work out d (positive value rounded to 2 DP) when F = 8
Answer:
d = 3√2
Step-by-step explanation:
find the constant of variation ('k'): F = k/d²
16 = k/3²
16 = k/9
k = 144
8 = 144/d²
d² = 144/8
d² = 18
d = √9 · √2
d = 3√2
30 ft
10 ft ;
20 ft
10 ft
10 ft
a. How much carpet does he need?
b. The carpet costs $3 per square
foot. How much will it cost to
carpet the bedroom?
Answer:30+15
Step-by-step explanation:
Define a variable and write an equation to find the number Then solve eight times a number is twelve times the number minus four.
Step-by-step explanation:
8x=12x-4
8x-12x=4
-4x=4
x= -1
One angle of a parallelogram measures 125 degrees. What are the measures of the other three angles in the parallelogram?
Answer:
55°, 55° and 125°
Step-by-step explanation:
Opposite angles of a parallelogram are congruent, then
Angle opposite 125° is also 125°
Consecutive angles are supplementary, sum to 180°, then
consecutive to 125° is 55°
sngle opposite 55° is also 55°
The other 3 angles are 55°, 55° and 125°
how do i solve 13 + a/11 = 7
Answer:
a = -66
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityStep-by-step explanation:
Step 1: Define
13 + a/11 = 7
Step 2: Solve for a
Subtract 13 on both sides: a/11 = -6Multiply 11 on both sides: a = -66Step 3: Check
Plug in a into the original equation to verify it's a solution.
Substitute in a: 13 - 66/11 = 7Divide: 13 - 6 = 7Subtract: 7 = 7Here we see that 7 does indeed equal 7.
∴ a = -66 is the solution to the equation.
Answer:
If you mean [tex]\frac{13+a}{7}=7[/tex] then the answer is [tex]a=36[/tex].
If you mean [tex]13+\frac{a}{7} =7[/tex] then the answer is [tex]a=-42[/tex].
Step-by-step explanation:
To do this question, you simplify both sides of the equation and then isolate the variable.
Find the area of a circle with diameter,
d= 30m.
Give your answer in terms of π
.
Answer:
225pi
Step-by-step explanation:
A patio floor is represented by the diagram shown below.
2x² +3
Patio Floor
2x - 3
The concrete on the patio floor is to be stained. Which expression represents the area to be
covered by the stain?
A 4x²
B 4x4-9
C 8x2
D 4x2 + 12x - 9
SOMEONE HELP ! This is due by 6:00pm MOUNTAIN TIME !
Answer:
4x4 – 9
Step-by-step explanation:
The expression represents the area to be covered by the stain will be 4x⁴ - 9. Then the correct option is B.
What is the area of the rectangle?Let W be the rectangle's width and L its length. The area of the rectangle is the multiplication of the two different sides of the rectangle. Then the rectangle's area will be
Area of the rectangle = L×W square units
The area of the patio floor is given as,
A = (2x² - 3)(2x² + 3)
A = 4x⁴ - 9
The expression represents the area to be covered by the stain will be 4x⁴ - 9. Then the correct option is B.
More about the area of the rectangle link is given below.
https://brainly.com/question/20693059
#SPJ5
Lucy and Greg each want to buy a bicycle. Lucy has already saved $35 and plans to save $10 per week. Greg has $26 and plans to save $13 per week. How many weeks will it take for Lucy and
Gregory to have the same amount of money saved? How much money will they have saved?
Answer:
3 weeks
65 dollars
Step-by-step explanation:
Alright to answer this question we have to set up an equation. For greg the equation is y=13x+26 and for lucy the equation is y=10x+35. y is total amount of money saved and x is number of weeks. Since we want them to each of the same amount of money we set up the equations to be 10x+35=13x+26
then we want to get the constant and the variables alone on different sides of the equal sign so we first subtract 26 from each side to get 10x+9=13x. next we want to subtract 10x from each side and then we end up with 3x=9. Finally we divide 3 from each side to get x=3, We have answered the question to how many week it will take them to save the same amount of money but not the other part. To find out how much money they will both have in 3 weeks we plug in 3 to x. 10(3)+35 which is equal to 65. They will both have 65 dollars in three weeks
Ella was paid an 11 percent commission on the pair of shoes that she sold. The department store had paid $25 wholesale for the shoes and had marked up the price by 40 percent to the selling price. How much did Ella earn for the sale?
Answer:
The answer is B. $3.85.
Step-by-step explanation:
This is because, first if we get the percentage that the shoes were marked up by, we get that they were marked up to $35, because 40% of $25 is $10 and $25 + $10 = $35.
Then, we find the percentage of $35 that she earned. In order to do this, we see what 11% of $35 is. We get $3.85, because 10% of $35 is $3.50, and 1% of $35 is $0.35. $3.50 + $0.35 = $3.85.
This is why the answer is B. $3.85.
Answer:
$6.88
Step-by-step explanation:
0.11(25/0.4)
0.11(62.5)
$6.88
.f;.f.f.f..f.f..f.f..f.f.f.f..f.f
Answer:
??????
Step-by-step explanation:
?
Answer:
what...... I am so confused
hey guys I need this fast. and please show step by step because I'm willing to give brainly
Answer:
32
Step-by-step explanation:
Find the speed in miles per minute. The subway car travels ¼ mile in ½ minute.
1/4
2
2/4
.5
need help finding BC.
Answer: what do all the # equal up to then subtract B+A first thenC+A next.then your left over # is the awnser.
Step-by-step explanation:
what do all the # equal up to then subtract B+A first thenC+A next.then your left over # is the awnser.
Find the missing measure.
51 degrees
X =
Answer:
360 degrees around a point
vertically opposite angle opposite 51 degrees given will be 51 degrees
360- 102= 258
258/2 ( because these will be same as vertically opposite also) = 129
X = 129 degrees
FY21 ALGEBRA 1 OPTIONAL SEM1 REVIEW
19. The graph below shows the average Valentine's Day spending between 2003 and
2012. What is the average rate of change in spending between 2009 and 2010?
Answer: B. $1.00
Step-by-step explanation:
Below is a list of Gabrielle’s assets and liabilities.
Assets Liabilities
Value of Auto $19,634.00 College Loans $10,478.00
Checking Account $1,062.32 Credit Card Debt $271.25
In addition to the list above, Gabrielle has just paid off her furniture, which is valued at $2,500.00. Based on the assets and liabilities above and the value of the furniture, what is Gabrielle’s net worth?
$33,945.60
$7,447.07
$5,322.43
$12,447.07
Answer:
Its A
Step-by-step explanation:
Answer:
A i did this before
Step-by-step explanation:
What is the solution to the following system of equations?
y= 3x + 1
y= x +5
Answer:x=2
y=7
Step-by-step explanation:
x+5=3x+1
x-3x=1-5
-2x= -4
x=2
PLESSS ANSWER QUICK I WILL GIVE BRAINLIEST
Answer:
8 0ver 49
Step-by-step explanation:
Answer:
the answer 8/49
Step-by-step explanation:
4/7 divided by 7/2 doesnt go together so the denomintor would be 7/7 then divide 4/2
Malcolm Little High School has sopho- mores, juniors, and seniors, but no freshmen. The ratio of sophomores to juniors is 5 to 4, and the ratio of juniors to seniors is 3 to 2. If there are 300 sophomores, how many seniors are there?
Answer:
161 seniors
Step-by-step explanation:
According to the problem, given data are as follows:
Total number of sophomores = 300
Sophomores to junior ratio = 5:4
So, Number of Juniors = 300 × (4 ÷ 5)
= 240
Now, Juniors to senior ratio = 3:2
So, we can calculate the number of seniors by using following method:
Number of seniors = 240 × ( 2 ÷ 3)
= 240 × 0.67
= 160.8 or 161
