how do you work out the value of "d" in the equation: 7d=4d+21?
Answers
I'm not completely positive but I believe this is how you do it.
7d=4d+21
7d - 4d = 21
3d = 21
3d / 3 = 21 / 3
d = 7
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if 30 cents outof every 1 dollar goes to taxes and the rest is net income, what's the ratio of taxes to net income?
Let f(x) = 12 over the quantity of 4 x + 2. Find f(−1).
Line A is represented by the following equation:x + y = 2 What is most likely the equation for line B so the set of equations has no solution? (4 points) x + 2y = 2 2x + 2y = 4 2x + y = 2 x + y = 4
. Krystal had 12 chocolates. She ate 4chocolates the day before yesterday and 4 chocolates yesterday. How many chocolates does she have now?
Answers
Answer:
f⁻¹(x) = (8-x)/3 and it is a Function.
Step-by-step explanation:
Given is f(x) = -3x+8
Suppose y = f(x), then y = -3x + 8
Solving for x:-
-3x + 8 = y
-3x = y - 8
3x = 8 - y
x = (8-y)/3
Now interchanging x and y:-
y = (8-x)/3
Here, y is inverse function i.e. f⁻¹(x)
Hence, f⁻¹(x) = (8-x)/3
Since f⁻¹(x) is a linear expression of x, therefore it is a function.
b) Use the equation to determine how long it will take the Jungs to reach their destination.
Answers
d = Kt
K is the constant of proportionality .
K = d/t
a) K = 144/1.5
= 96 Km/h
K shows the speed.
b) t = d/K
= 300/96
t = 3.125 hours
The program recommends a constant intensity for 3 visits, increasing intensity over 3 visits, and then decreasing intensity for 3 visits before restarting the pattern. Which sets of values could be the intensities of Amber’s exercise during the fourth, fifth, and sixth visits? Select three options.
63%, 63%, 63%
66%, 69%, 72%
66%, 62%, 58%
63%, 65%, 67%
67%, 72%, 77%
Answers
Answer:
66%, 69%, 72%
63%, 65%, 67%
67%, 72%, 77%
Step-by-step explanation:
it says that people recommend the same intensity for three then increasing for three then decreasing thus repeating this cycle
so anyways for the fourth fifthe and sixth visit itll be an increasing sensitivity
Anyways for the fourth fifth and sixth visit, it'll be an increased sensitivity.
We have given that,
The table represents the recommended exercise intensity for an aerobic program based on the number of visits since beginning the program.
A 2-column table with 6 rows titled Intensity of Exercises. The first column is labeled Number of Visits with entries 1, 2, 3, 4, 5, and 6.
66%, 69%, 72%
63%, 65%, 67%
67%, 72%, 77%
What is the intensity?
The intensity or flux of radiant energy is the power transferred per unit area, where the area is measured on the plane perpendicular to the energy's propagation direction.
it says that people recommend the same intensity for three then increasing for three then decreasing thus repeating this cycle
so anyways for the fourth fifth and sixth visit, it'll be an increased sensitivity.
To learn more about the intensity visit:
#SPJ5
Answers
a = 8, b = 15, c = ?
a = 24, b = ?, c = 26
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2: a= 24
3: c=17
4: b=10
Use a^2 + b^2 = c^2 to answer.
1: 12^2 (144) + b = 15^2 (225)
225-144 = 81
Square root 81 = 9
2: a + 49 = 625
625-49=576
Square root 576 = 24
3: 64 + 225 = 289
Square root 289 = 17
4: 576 + b = 676
676-576 = 100
Square root 100 = 10
Answers
Answer:
Step-by-step explanation:
The computation of the meters of cloth that were not use is shown below:
= Used for making a curtain - purchase of curtain cloth
Hence, the meters of cloth that was not used is