b = -0.5
4 + 2 = - 0.5 * 4 + 8
6 = -2 + 8
6 = 6
Which is true, Therefore the answer is -0.5
For b = - 0.5 , y =4 is the solution of the equation y + 2 = by + 8.
We have the following equation → y + 2 = by + 8.
We have to find the value of b for which y = 4 is a solution to the equation → y + 2 = by + 8.
What is the solution of a function f(x) ?The solution of a function f(x) is the value of x for which f(x) = 0.
According to the question, we have -
y + 2 = by + 8
y - by - 6 = 0
y(1 - b) - 6 = 0
y(1 - b) = 6
1 - b = 6/y
1 - 6/y = b
b + 6/y = 1
For y = 4 ->
b + 6/4 = 1
b + 1.5 = 1
b = - 0.5
Hence, for b = - 0.5 , y =4 is the solution of the equation y + 2 = by + 8.
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Hello if anyone could answer this that'd be nice
Select all the equations that have {7} as its solution set.
65−2x=6x+9
x2+1=8x−5
3+4x=5x−4
9−x=14x
Step-by-step explanation:
x = 7
3 + 4x = 5x - 4
3 + 4(7) = 5(7) - 4
3 + 28 = 35 - 4
31 = 31
Option C
The equations having the solutions 7 are 65−2x=6x+9 and 3+4x=5x−4. the correct options are A and C.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that we have to check all the equations having solution 7.
Checking option A,
65−2x=6x+9
65 - ( 2 x 7 ) = ( 6 x 7 ) + 9
51 = 51
Checking option B,
x²+1=8x−5
(7²) + 1 = ( 8 x 7 ) - 5
50≠ 51
Checking option C,
3 + 4x = 5x - 4
3 + 4(7) = 5(7) - 4
3 + 28 = 35 - 4
31 = 31
Checking option D,
9 - x = 14x
9 - 7 = 14 x 7
2≠ 98
Therefore, the equations having the solutions 7 are 65−2x=6x+9 and 3+4x=5x−4. the correct options are A and C.
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Which of the systems of equations below is equivalent to the system?
4x+5y=3
2x+3y=1
Answer:
algebraic equation
Step-by-step explanation:
.....
Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
(1.5, 8)Step-by-step explanation:
We can see the coefficients of y are same in number but have opposite signs.
We need to add equations, this will eliminate y:
2x + 6x = 7 + 58x = 12x = 12/8x = 1.5Now find the value of y:
2(1.5) + 0.5y = 73 + 0.5y = 70.5y = 4y = 4/0.5y = 8If 2a - b = 4 , find a.
To solve for 'a' we have to make it the subject of the equation. Since there are two unknowns ('a' & 'b'), we won't get a numerical value of 'a', but an expression in terms of the second unknown 'b'.
Since 2a - b = 4 [add 'b' to both sides]
then 2a = 4 + b [divide both sides by 2 = multiplying by ¹/₂]
a = ¹/₂ (4 + b)
I need the answerrrrrrrr plsssssssss
Answer:
Hope this helps
Step-by-step explanation:
Range: 6
Number of students with 6 siblings: 1
Number of students with no siblings: 3
Number of students with 3 or more siblings: 11
Number of observations: 20
Shape of the data: Left skewed
Given f(x)=3x−3 and g(x)=2x−3
f(3)−g(5)+12=
Answer:
When f(x) = 3x - 3 and g(x) = 2x - 3,
f(3) - g(5) + 12 = 11.
Step-by-step explanation:
Given:
f(x) = 3x - 3
g(x) = 2x - 3
First solve f(3).
f(x) = 3x - 3
Substitute input value.
f(3) = 3(3) - 3
Multiply 3 and 3.
f(3) = 9 - 3
Subtract 3 from 9.
f(3) = 6
Next, solve g(5).
g(x) = 2x - 3
Substitute input value.
g(5) = 2(5) - 3
Multiply 2 and 5.
g(5) = 10 - 3
Subtract 3 from 10.
g(5) = 7
Knowing these values, solve the expression.
f(3) - g(5) + 12
Replace functions with their values.
6 - 7 + 12
Subtract 7 from 6.
(-1) + 12
Add -1 and 12.
11.
what is the oppistite of 63
Answer:
-63
Step-by-step explanation:
The opposite, or additive inverse of a number is found by changing the sign of the number. With the exception of zero, a number and its opposite (additive inverse) sum to zero.
Hello there! :)
The opposite of 63 is -63.
The opposite of a positive number is a negative number.
Hope it helps!
~Just a felicitous girlie
#HaveAnAwesomeDay
[tex]SilentNature :)[/tex]
How to answer this question
Answer:
C. 15
Step-by-step explanation:
The scale factor is 4/10 = 2/5
To find AB:
2/5 = 6/AB cross multiply expressions
30 = 2AB divide both sides by 2
15 = AB
(SUPER EASY) ILL GIVE BRAINLIEST TOO.
just answer all the questions you know.
Answer:
what is the question
Step-by-step explanation:
A grocer can buy oranges for $1.65 per pound. 1. Write an equation relating c, the cost; and p, the pounds of oranges. (1 point) 2. An orange order cost $260.10. How many pounds did the grocer order? (Round to the nearest whole number) (1 point)
429.165
Step-by-step explanation:
I think 1.65 x 260 = 429.165
Whats 2x4 i need help.
Answer:
8
Step-by-step explanation:
2 x 4 is 2 + 2 + 2 + 2, which is 8
Evaluate.
−8+(6+4)÷(−2)
A −13
B −4
C −3
D −1
Answer:
A -13
Step-by-step explanation:
-8+(6+4)÷(-2)
-8+(10)÷(-2)
-8+-5
-13
Answer: A. -13
Step-by-step explanation:
−8+(6+4)÷(−2)Evaluate inside the parentheses first−8+(10)÷(−2)The multiply and divide from left to right−8+-5Then add-13! So 13 btc<3
The initial number of views for a certain website was 15 . The number of views is growing exponentially at a rate of 22% per week. Whatbis the number of views expected to be four weeks from now . Round to the nearest whle number o
Answer:
33
Step-by-step explanation:
Set up equation:
[tex]15(1+22\%)^4=15*1.22^4 = 33.23[/tex]
round to whole number 33
PLSSSSS help i need it quick
14.50 divided by 8.5
Answer:
1.70
Step-by-step explanation:
The answer is 1.70!
Of the shirts in Shelley's dresser, 1/3 are striped, while another 5/12 are plaid. What fraction of the shirts are either striped or plaid?
What is the smallest positive multiple of $32$?
Answer:
1
Step-by-step explanation:
i think i could be wrong
PROOF! Prove Theorem: If two lines are perpendicular, then they form congruent adjacent angles. Given: Line AB is perpendicular to line CD. Angle 1 and angle 2 are a linear pair. Prove: Angle 1 is congruent to angle 2.
Answer:
From construction, we construct point M as the center of the figure. According to the linear pair postulate, we know that the sum of the angles on a straight line equal to 180 degrees. Therefore, we know that the other angles have to be 90 degrees. Therefore the angles are congruent because all right angles are congruent.
Step-by-step explanation:
HURRY IM TIMED PLEASE I WILL GIVE BRAINLIST
Answer:
When you divide, you find the reciprocal (flip the numerator and denominator) of the number after the division sign and then multiply.
9/11 divided by 5/11
9/11 x 11/5
9/5
1 4/5
The value of a is 1, b is 4, and c is 5.
:)
Graph r < -9 on number line
Graph r < -9 on number line???
Step-by-step explanation:
ayusin nyu po tanung nyuh lods
1. What is an equation of a line that is perpendicular to the line whose equation is 2y + 3x - 1?
1)
2)
3
3) y = 2/3
y = x+
x + 1 / 2
y - zx+2
+1
4)
y=-x+
Answer:
Mark me as brainlist
Step-by-step explanation:
y=-3x-7
A bicycle is marked 40% off the original price of $150. It is then taxed at 7 1/2%
What is the final total cost of the bicycle?
$96.75
$101.25
$97.50
$64.50
Answer:
$64.50
Step-by-step explanation:
You can sum 7,5% of $150 which will be $161,25 minus 40% = Correct answer is D
please help me i got points
Answer:
the answer is c
Step-by-step explanation:
I did the test
find the volume to the nearest hundredth using 3.14(pi)
Answer:
5575.28 cm^3
Step-by-step explanation:
Formula for the Volume of a Sphere:
(4/3)πr^3
Radius (r) = 11 cm
Plug it in:
(11)^3(4/3)π = (1331)(4/3)π = (5324/3)π
Convert π into a number:
(5324/3)(3.14) = 5575.28
Can someone tell me the answer marking brainlist
Answer:
the answer is a decimal that never stops (an irrational number)
Charlie is making copies of fliers to advertise his new club at school. The cost for 25 copies is 3.75$
Answer:
.15
Step-by-step explanation:
I'm assuming that you are asking how much does one flier cost
Davon bought 4 pairs of jeans that cost $18.50 per pair. He had a coupon that took 20% off the total cost of the purchase. What is the final cost of the jeans Davon bought?
Answer
4 pairs of jeans by shirts instead
Step-by-step explanation:
Please help with the question in the circle
Answer:
Step-by-step explanation:
B took the test
The surface areas of Jupiter and Earth are approximately 6.0 x 1010 km2 and 5.1 x 108 km2. About how many times greater is Jupiter's surface area than Earth's surface area?
a. 1.2 times
b. 21 times
c. 100 times
d. 120 times
Answer:
D Hope I helped :) Please mark brainliest!
Step-by-step explanation:
Alex simplified an equation as far as he could and determined that his equation has an infinite number of solutions. Which simplified equation leads Alex to this conclusion?
WHICH ONE IS CORRECT
A
B
C
D
The simplified equation leads Alex to this conclusion is x=5 or x= 0.
What is 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. LHS = RHS is a common mathematical formula.
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.
We have given few Resultant value.
So, x = 5 shows that the resultant value of x is 5.
and, x = 0 shows that the resultant value of x is 0.
and, 5 = 5 shows only equality and for equation there must be variable.
and, 5 = - 5 shows only inequality and for equation there must be variable.
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