Given: 3jk 2 + =15 4k− Prove: j = 10 – 3k
Answers
Answer:
j=10-3k
Step-by-step explanation:
here you go...i hope it's correct
If the equation is (3j+k)/2=15-4k then j=10-3k
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is (3j+k)/2=15-4k
We need to prove j=10-3k
(3j+k)/2=15-4k
Apply cross multiplication and solve for k
3j+k=2(15-4k)
3j+k=30-8k
Subtract k from both sides
3j=30-9k
Divide both sides by 3
j=10-3k
Hence, if the equation is (3j+k)/2=15-4k then j=10-3k
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Related Questions
(b) It takes 37 pounds of seed to completely plant a 4-acre field. How many pounds of seed are needed per acre?
Answers
Answer:
9.25 lbs
Step-by-step explanation:
37 is the amount for 4 acres or 4a:
37 = 4a
Isolate and find a by dividing both sides by 4:
4a = 37
4a ÷ 4 = [tex]\frac{37}{4}[/tex]
a = [tex]\frac{37}{4}[/tex] or 9.25 lbs
Hope this helps!
Which of the following are solutions to the equation below?
Check all that apply.
x2 + 6x + 9 = 20
A. x= 13 + 20
B. X = -2.75 +3
C. X = 2.5+ 3
D. X = -1/5 + 20
E. X = 2.5 - 3
F. x = -24/5-3
Answers
Helppp I will give u 100 if you give me a good answer
Answers
Answer: it allows you to see both sets of data more clearly and compare them rather than having them on two different charts.
Step-by-step explanation:
maths surface solving
Answers
Answer:
144 cm²Step-by-step explanation:
6 * 8 + 10 * 4 + 8 * 4 + 6 * 4 =
48 + 40 +32 + 24 =
144 cm²
can somebody please help me I’m begging I need help
Answers
Answer:
4.0%
Step-by-step explanation:
percent change = (new number - old number)/(old number) * 100
percent change = (25475 - 24500)/(24500) * 100
percent change = 3.979...%
Answer: 4.0%
0
1
2.
3
у
8
1
-6
-13
What is an equation that describes the relationship?
Answers
Step-by-step explanation:
that only know
real world examples of:
-scalene triangle
-isosceles triangle
-perpendicular lines
Answers
Answer:
-Scalene
Nacho chipsSails on sailing boats- Isosceles
Pizza sliceRoof-Perpendicular lines
Stairs/StepsThe corner on the inside of shelvesDoes anyone know this answer for 5 and 6??
Answers
6) inverse
Insert 3 arithmetic means between 10 and -10 (INSERT SOLUTION)
Answers
Answer:
5, 0, -5Step-by-step explanation:
Numbers in sequence are:
10, a, b, c, -10The difference between end points:
-10 - 10 = -20Common difference of 5 terms:
-20 / (5 - 1) = - 5The missing numbers are:
a = 10 - 5 = 5b = 5 - 5 = 0c = 0 - 5 = -5Volume Of This Cylinder
Answers
Answer:
6
Step-by-step explanation:
1. The Formula for volume of a Square is V=πr2h
2. So u would plug everything in.. so v- π4²12
3. so then u get 6
What is the answer of this : 3+5-9*6/2
Answers
Answer:
3+5-9*6/2
3+5-9*3
3+5-27
8-27
-19
PLEASE HELP ME
The table shows the outputs, y, for different inputs, x:
Input (x) 1 2 3 4
Output (y) 5 5 7 9
Part A: Do the data in this table represent a function? Justify your answer. (3 points)
Part B: Compare the data in the table with the relation f(x) = 2x − 8. Which relation has a greater value when x = 4? (2 points)
Part C: Using the relation in Part B, what is the value of x if f(x) = 34? (5 points)
(10 points)
Answers
Answer:
See belowStep-by-step explanation:
Part AAccording to definition of the function, the data in the table is a function. Each input value has own output and no repeat inputs.Part BAt x = 4, y = 9 (table)At x = 4, f(4) = 2*4 - 8 = 8 - 8 = 0The relation in the table has greater value as 9 > 0
Part Cf(x) = 34, find x:
34 = 2x - 82x = 34 + 82x = 42x = 21Tara brought 30 books at a yard sale. She now has 220 books. Which equation can be solved to find b, the number of the books had before the yard sale?
Answers
Answer:
b=220-30
Step-by-step explanation:
Evaluate the expression (-1/2)^3
Answers
Answer:
-1/8 is correct answer
please mark me brainliest
Han is multiplying 10x^4 by 5x^3 and gets 5x^7. He says that 0.5x^3 is not a polynomial because 0.5 is not an integer. What is the error in Han’s thinking? Explain your reasoning.
Answers
The result of the product with [tex]5x^7[/tex], we can see that Han neglected the zero taking 50 the same as 5 which is wrong
Given the polynomial functions
r(x) = [tex]10x^4[/tex]
t(x) = [tex]5x^3[/tex]
Taking the product of both functions:
P(x) = r(x) * t(x)
P(x)= [tex]10x^4\times 5x^3[/tex]
P(x) = [tex](10\times 5) \times(x^4\times x^3) = 50x^7[/tex]
Comparing the result of the product with [tex]5x^7[/tex], we can see that Han neglected the zero taking 50 the same as 5 which is wrong.
Learn more here: https://brainly.com/question/4854699
Plz help. Thank youuu
Answers
Answer:
c
Step-by-step explanation:
cause
What is the value of x
Answers
Answer:
9
Step-by-step explanation:don't use this awnser its wrong
Colin invests £1200 into his bank account. He receives 3% per year simple interest. How much will Colin have after 4 years? Give your answer to the nearest penny where appropriate.
Answers
Answer:
1440
Step-by-step explanation:
Find the measure of the angles (S)
Please help out:/
Answers
Answer:
Step-by-step explanation:
The triangle’s angles add up to 180°
so 180 - (5x - 2) = the another one interior angle
180 - 5x + 2
182 - 5x
and then 2x + 76 + (182 - 5x) = 180
2x + 76 + 182 - 5x = 180
258 - 3x = 180
78 = 3x
x = 26
so 2x = (26)(2) = 52
5x - 2 = (5)(26) - 2 = 128
please give me a brainliest answer
352x 408 in standard algorithm
Answers
Answer:
Multiply 408 by 352.143616x
Step-by-step explanation:
Lmk if im wrong.
hihi please solve ( will mark brainliest ❥ )
Answers
Answer:
use calculator and then solve it╮(─▽─)╭
Michele has 5 coins Worth 0.75 in all. What coins does she have
Answers
Answer:
2 quarters, 2 dimes, and 1 nickel
Step-by-step explanation:
25 times 2 = 50
10 times 2 = 20
1 times 5 = 5 +
____________
0.75
The coins can be distributed in the following manner -
2 quarters (2 x 25) + 2 dimes (2 x 10) + 1 nickel (5) = $0.75
What is Equation Modelling?
Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
Given is Michele who has 5 coins Worth 0.75 in all.
We can distribute the coins in the following manner -
2 quarters (2 x 25) + 2 dimes (2 x 10) + 1 nickel (5) = $0.75
Therefore, the coins can be distributed in the following manner -
2 quarters (2 x 25) + 2 dimes (2 x 10) + 1 nickel (5) = $0.75
To solve more questions on Equation Modelling, visit the link below -
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The telephone company offers two billing plans for local calls. Plan 1 charges $36 per month for unlimited calls and Plan 2 charges $13 per month plus $0.05 per
call
a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2
b. Explain the meaning of the answer to part a.
a. Let x represent the number of monthly calls. The answer is
(Type an inequality.)
Answers
Answer:
After 460 calls plan 1 is more economical than plan 2
Step-by-step explanation:
Plan 1: 36x + 0y
Plan 2: 13x + 0.05y
36x < 13x + 0.05y
36x - 13x < 0.05y
23x < 0.05y
23/0.05x < y
460x < y
Fred's family wants to switch cell phone plans. Hot Spot Mobile is offering a one-time discount of $50 for families that use multiple phones with their service. Fred's family uses 5 phones, and the salesperson said the first month's payment, which includes the discount and the regular monthly rate for each phone, will be $62.25. What is the regular monthly rate for each phone?
Answers
Answer:
22.45
Step-by-step explanation:
ixl told me a
Answer:
$22.45 per month
Step-by-step explanation:
Fred's family will pay for cell service for 5 phones at a regular monthly rate of c dollars for each phone. They will also receive a discount of $50. The first month's payment will be $62.25. This equation represents the situation.
5c
−
50
=
62.25
monthly cost of cell service for 5 phones
one-time discount
first month's payment
Now, solve the equation for c.
5c–50
= 62.25
5c
= 112.25 Add 50 to both sides
c
= 22.45 Divide both sides by 5
The regular monthly rate for each phone is $22.45.
Find the angle of C
Answers
Answer:
8
Step-by-step explanation:
Answer:
∠ C ≈ 22.6°
Step-by-step explanation:
Since Δ ABC is right at B
Using the sine ratio in the right triangle
sinC = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AB}{AC}[/tex] = [tex]\frac{5}{13}[/tex] , then
∠ C = [tex]sin^{-1}[/tex] ( [tex]\frac{5}{13}[/tex] ) ≈ 22.6° ( to 1 dec. place )
Express 0.1345345... using bar notation
Answers
Answer:
0.1345
Step-by-step explanation:
The bolded numbers are what is barred
345 is constantly repeated so that is what would be barred as that repeats for ever
Answer:
3/1345
Step-by-step explanation:
guys pls help me!!!!!!
Answers
Corresponding angles for 62⁰,
angles in a straight line equals 180⁰
180⁰-62⁰
118⁰
x equals 118⁰
Someone plz help me :(
Answers
Answer:
i can JUST GET ON YOUR CROME BOOK
Step-by-step explanation:
can someone pls help me
Answers
Answer:10 & 12
Step-by-step explanation:
Answer:
The 5th step will need 32 blocks, and the 6th step will need 64 blocks.
Step-by-step explanation:
Each step requires the blocks to be doubled. The first step has two, 2x2 is 4. There are 4 blocks in the next step. 4x2 is 8. There are 8 blocks in the next step, and so on and so forth. Just multiply by 2. Hope this helped!
(6d+5)−(2−3d) find the difference
Answers
Answer:
9d+7
Step-by-step explanation:
when you subtract you 'add the opposite' so we can rewrite this subtraction problem as an addition problem as follows:
6d + 5 + 2 + 3d
combine 'like' terms to get:
9d + 7
Answer:
3d + 3
Step-by-step explanation: