Answer:
since J=2A
2A+20=1.5(A+20)
Step-by-step explanation:
J=2A
2A+20=1.5(A+20)
simplified for proof
J+20=1.5A+30
.5A=10
A=20
J=40
Equation for situation is x - 1.5y = 10, where x is the money of Jelani and y is money of Alexis.
What are linear equations?An algebraic equation with a variable with a highest exponent of one is known as a linear equation. Some linear systems have three equations, but not all linear equations have one, two, or three variables. Generally, an arrangement of straight condition has just a solitary arrangement yet at times, it has no arrangement or boundless number of arrangements.
Given Jelani has twice the money as Alexis,
let Jelani have money be x and Alexis have money be y
according to question x = 2y
and if both add $20 dollar to their pass Jelani will have 1.5 times much than Alexis, so x + 20 = 1.5(y + 20)
simplify x - 1.5y = 10
Hence the equation will be x - 1.5y = 10
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Please help me first thanks
Answer:
B
Step-by-step explanation:
because it is a positive number so it goes left
Answer:
C
Step-by-step explanation:
Lookin at the graph we see P = - 4
If Q has to be 6 and a half away from P then
it can be towards the negative side at -4+(-6 and a half) = - 10 1/2 (not an option given)
and
it can be towards the positive side -4 + (6 and a half) = 2 1/2 (C)
Scientist are studying a bacteria sample. The function f(x)=360(1.07)^x gives the number of bacteria in the sample at the end of x days. Which statement is the best interpretation of one of the values of the function?
Options :
A. The initial number of bacteria is 7.
B. The initial of bacteria decreases at a rate of 93% each day.
C. The number of bacteria increases at a rate of 7% each day.
D. The number of bacteria at the end of one day is 360.
Answer:
C. The number of bacteria increases at a rate of 7% each day.
Step-by-step explanation:
Given the function :
f(x)=360(1.07)^x ; Number of bacteria in sample at the end of x days :
The function above represents an exponential growth function :
With the general form ; Ab^x
Where A = initial amount ;
b = growth rate
x = time
For the function :
A = initial amount of bacteria = 360
b = growth rate = (1 + r) = 1.07
If ; (1 + r) = 1.07 ; we can solve for r to obtain the daily growth rate ;
1 + r = 1.07
r = 1.07 - 1
r = 0.07
r as a percentage ;
0.07 * 100% = 7%
I NEED HELP ASAP!!!!!
An on-demand movie company charges $2.95 per movie plus a monthly fee of $39.95. Which expression represents the yearly cost for x movie rentals?
A.2.95 x + 39.95
B.39.95 x + 2.95
C.2.95 x minus 39.95 (12)
D.2.95 x + 39.95 (12)
Answer:
D
Step-by-step explanation:
Evaluate d-5 when d = 11
Answer:
6
Step-by-step explanation:
substitute 11 for d
11-5=6
Here are four straight line equations.
A 3y = 4x + 5
B 4y = 3x - 1
C 4y + 3x = 7
D 4x + 3y = 2
Which of the following statements are true? Choose as many as apply.
Select one or more:
Lines A and B are perpendicular
Lines A and D are parallel
Lines B and D are perpendiculars
Lines B and C are parallel
Lines A and C are perpendicular
lines a and d are parallel and lines b and c are parallel
What's 100 divided by 42
Answer:
Can you help me? It's worth one hundred points. https://brainly.com/question/21042823
Step-by-step explanation:
2.38095238095
wich gragh best repersents this relationship
A
B
C
D
Answer:
Step-by-step explanation:
A then the gravitational pull from the kinetic energy fullthe pull of the crust of the earth pulls in the algebraic fractions
Answer:
C.
Step-by-step explanation:
need help with this !!!!
Answer:
3.844 × 10 with a exponent of 5
Step-by-step explanation:
Answer:
3.884 x 10 to the power of 5.
Step-by-step explanation:
Anyone
Here again! :)
Maths
Answer: x = 47
because this is a right triangle
=> x + 43° = 90°
⇔ x = 90 - 43
⇔ x = 47°
Step-by-step explanation:
Kelly's new snowboard is 120% longer than her old snowboard. If the new snowboard is 150 cm, how long is her old snowboard?
12.5 Step-by-step explanation: My friend helped me
The length of Kelly's old snowboard is 125 cm long.
How to find the percentage from the total value?Suppose the value of which a thing is expressed in percentage is "a'
Suppose the percent that considered thing is of "a" is b%
Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).
Thus, that thing in number is
[tex]\dfrac{a}{100} \times b[/tex]
For this case, let we suppose that:
x = length of Kelly's old snowboard (in cm)
Then, as we know that: new snowboard is 120% longer than her old snowboard, thus:
[tex]\dfrac{x}{100} \times 120 = \text{Length of new snowboard} = 150[/tex]
or
[tex]\dfrac{x}{100} \times 120 = 150\\\\\text{Multiplying 100/120 on both the sides}\\\\x \times \dfrac{120}{100} \times \dfrac{100}{120}= 150 \times \dfrac{100}{120}\\\\x \times 1 = x = \dfrac{150 \times 100}{120}\\\\x = \dfrac{15000}{120} = 125 \: \rm cm[/tex]
Thus, the length of Kelly's old snowboard is 150 cm long.
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4x + 2x + 15 > 37
“With a step-by-step explanation be specific”
Step-by-step explanation:
Combine like-terms: 4x + 2x = 6xNew equation: 6x + 15 > 37Subtract 15 from both sides: 6x > 22Divide both sides by 6: x > 22/6Answer: x > 3 2/3Sara is building a fence that will be 7 miles long when it is completed. Sara has finished building 2/3 of the fence. What is the length of fence (in miles) that Sara still needs to build to complete the fence?
Answer:
7/3 ft
Step-by-step explanation:
Given data
Lenght of fence= 7 miles
Amount completed= 2/3 of the total length
let us find the amount completed already = 2/3*7= 14/3 miles
Hence the length of fence remaining for completion is
=7- 14/3
=21-14/3
=7/3
Hence the amount in length undon is 7/3 ft
Help me plz with 5, 6, 7
Answer:
C.
C.
A.
Step-by-step explanation:
elgooG
the surface of a cube is 13 1/2 cm squared. how long is one side of the cube
A cube has 6 sides. Divide the surface area by 6 to get the area of one side:
13 1/2 /6 = 2 1/4
The area of one side is S^2
To fins the length of the sides find the square root of the area:
Side = sqrt(2 1/4)
Side = 1 1/2 cm.
ill give brainliest!! please help with algebra!! Find the factors of these trinomials
Step-by-step explanation:
Use formula:
(a + b)^2 = a^2 + 2ab + b^2Q12
16x^4 - 16x^2 + 4 =(4x^2)^2 - 2*4x^2*2 + 2^2 =(4x^2 - 2)^2 = 4(2x^2 - 1)^2Q13
81p^6 + 90p^3 + 25 = (9p^3)^2 + 2*9p^3*5 + 5^2 = (9p^3 + 5)^2Q14
4x^2 - 60x + 225 =(2x)^2 - 2*2x*15 + 15^2 =(2x^2 - 15)^2Q15
25x^4 + 50x^2 + 25 = (5x^2)^2 + 2*5x^2*5 + 5^2 = (5x^2 + 5)^2 =25(x^2 + 1)^2Q16
36y^2 - 156y + 169 = (6y)^2 - 2*6y*13 + 13^2 = (6y - 13)^2Q17
144b^4 - 24b^2 + 1 =(12b^2)^2 - 2*12b^2*1 + 1^2 = (12b^2 - 1)^2Q18
49q^8 + 28q^4 + 4 = (7q^4)^2 + 2*7q^4*2 + 2^2 = (7q^4 + 2)^2How to do this I need help
Mr. Peters made 5000 milliliters of fruit punch for a luncheon how many liters of fruit punch did she make
Answer: She made 5 liters of punch for a lunch.
Step-by-step explanation:
We know that,
1 liter = 1000 milliliters
Then, 1 milliliter = [tex]\dfrac{1}{1000}[/tex] liters
We are given that,
Mr. Peters made 5000 milliliters of fruit punch for a lunch.
i.e. in liters, it will be [tex]\dfrac{5000}{1000}[/tex] liters.
i.e. in liters, it will be 5 liters.
i.e. She made 5 liters of fruit punch for a lunch.
Hence, she made 5 liters of fruit punch for a lunch.
What's the answer to this?
I'm pretty sure the answer is 40
A test was given to a group of students. The grades and gender are summarized below
Male
Female
Total
A
11
19
30
B
5
14
19
С
3
15
18
Total
19
48
67
If one student is chosen at random from those who took the test, find the probability that the student got a
'an 'A" GIVEN they are male. Write your answer as a reduced fraction.
P(A male) =
Question Help: D Video Message instructor
Answer:
★ 11/30 is the right answer. ★Step-by-step explanation:
Number of male students who got 'A' in the test is 11Number of female students who got 'A' in the test is 19Total students who got 'A' in the test is 30Probability that the male student got an 'A' is P(A | male) = (Number of male students who got 'A' in the test)/(Number of total students who got 'A' in the test) = 11/30what is the y intercept of the function f(x)=2*5^x+4 please leave an explanation options- 2 4 6 14
Answer:
y intercept is 6
Step-by-step explanation:
Given:
[tex]f(x) = 2(5^x) + 4[/tex]
Required:
Determine the y intercept
To do this, we simply set x to 0
Substitute 0 for x in [tex]f(x) = 2(5^x) + 4[/tex]
[tex]f(0) = 2(5^0) + 4[/tex]
Evaluate the exponent, [tex]5^0[/tex]
[tex]f(0) = 2(1) + 4[/tex]
Open bracket
[tex]f(0) = 2 + 4[/tex]
[tex]f(0) = 6[/tex]
Hence, the y intercept is 6
Answers? Please helpppppop I don’t need number one only the rest
Answer:
2.2364.2425.8308.94415.16513.076
Angela puts $520 in an account that eams 6% per year. What interest will she get at the end of 1 year?
Answer:
$31.20
Step-by-step explanation:
Audrey has $111 to spend on a tennis racket and lessons. The racket costs $55 and the lessons cost $14 per hour. Define a variable. Then write and solve an equation to find how many hours of lessons she can afford ?
( pls answer this )
Answer:
Audrey can afford 4 hours of lesson.
Step-by-step explanation:
Given that:
Amount Audrey has to spend = $111
Cost of racket = $55
Cost per lesson = $14
Let,
y be the total cost
x be the number of hours
According to given statement;
y = 14x + 55
111 = 14x + 55
111 - 55 = 14x
14x = 56
Dividing both sides by 14
[tex]\frac{14x}{14}=\frac{56}{14}\\x=4[/tex]
Hence,
Audrey can afford 4 hours of lesson.
A. 15/2
B. 9/2
C. 13/3
D. 10/3
Answer:
its A
Step-by-step explanation:
question (.1) A suit costs $300 to make. What is:
(a) the profit
(b) the selling price
if it is sold for a 12% profit?
question (2.) Andrew Prescot bought his car for $63 500 and sold it at a 20% loss.
(a) What was his loss?
(b) What did he sell the car for?
Answer:
this is a required answer.
Calculate ZQRP
12 cm
Р
R
18 cm
Answer:
<QRP = 48.2°
Step-by-step explanation:
Given:
PR = 18 cm
QR = 12 cm
Required:
<QRP = angle R
Solution:
Reference angle = <R (<QRP)
Adjacent side length = 12 cm
Hypotenuse = 18 cm
Thus:
Cos (R) = 12/18
cos (R) = 0.6667
[tex] R = Cos^{-1}(0.6667) [/tex]
[tex] R = 48.1871227 [/tex]
<QRP = 48.2° (nearest tenth)
help ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
CL=9
Step-by-step explanation:
angle B=30
so angle A=60
Since AL bisects angle A, angles LAB and CAL both =30
Then triangle ALB is isosceles since angles B and LAB are equal
Therefore segment AL=segment LB
then
sin angle CAL (30)=CL/LB
.5=CL/18
CL=9
If g(x) =− 3x^2 + 5x − 7, determine g(− 3).
Answer:
what are your answer choices
Factorise
P(x)= (x+3)(12x^2-3)+(2x-1)(x^2-9)
And
Q(x)= 4x^4-x^2
Answer:
a2 answers to exercises
ii. yes. suppose a is negative, so write a = -b where b is positive. let c be a
positive number such that c" = b. then (-c)" = a because (-1)" = -1 since
n is odd.
ii, §1, p. 24
3. x negative, y positive 4. x negative, y negative
ii, §3, p. 33
5. y = -~x + i 6. y = -ix + s 7. x = j2
9 9j3 8. y = --;:;- x + 4 - --;:;- 9. y = 4x - 3 10. y = -2x + 2
",3+3 ",3+3
ii. y= -!x+3+ j'!- 12. y=j3x+s+j3 19. -! 20.-8
21. 2 + j2 22.!<3 + j3) 23. y = (x - n>(j22_ n) + 1
24. y=(x-j2)c~-~)+2 25. y= -(x+ l)(j23+ 1)+2
26. y = (x + 1)(3 + j2) + j2 29. (a) x = -4, y = -7 (b) x = ~, y = i
(c) x = -!, y = 1 (d) x = - 6, y = - 5
ii, §4, p. 35
1.j97 2.j2 3.js2 4.ji3 5.!j5 6.(4,-3) 7. sands 8.(-2,5)
9. sand 7
ii, §8, p. 51
5. (x - 2)2 + (y + 1)2 = 25 6. x 2 + (y - 1)2 = 9 7. (x + \)2 + y2 = 3
8. y + ¥ = 2(x + w 9. y - 1 = (x + 2)2 10. y + 4 = (x - \)2
ii. (x + 1)2 + (y - 2)2 = 2 12. (x - 2)2 + (y - \)2 = 2
13. x + ¥- = 2(y + !)2 14. x-i = (y + 2)2
iii, §1, p. 61
1. 4 2. -2 3. 2 4. i s. -! 6. 0 7. 4 8. 6 9. 3 10. 12 ii. 2
12. 3 13. a
Answer:
Q is x^2((4x+1) (4x-1)) and P is (2x-1)(x-3) (x+3) + 3(x+3)(4x+1)(4x-1)
Step-by-step explanation:
You can further factor the equations by simplifying certain areas, i.e. taking 3 out of (12x^2-3) to make it factorable, or taking x^2 out of the second one to make it factorable
Graph the line whose y-intercept is - 4 and whose x-intercept is -2.
Answer:
Answer is (-2,-4). Place this on a line graph.
Step-by-step explanation:
The below straight line represents the graph of the equation with a y-intercept of -4 and an x-intercept of -2.
To graph the line with a y-intercept of -4 and an x-intercept of -2, we can plot these two points and then draw a straight line passing through them.
The y-intercept is the point (0, -4), which means the line intersects the y-axis at -4.
The x-intercept is the point (-2, 0), which means the line intersects the x-axis at -2.
Plotting these two points on a coordinate plane, we get below shown a straight line.
This straight line represents the graph of the equation with a y-intercept of -4 and an x-intercept of -2.
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