Answer:
i think x = 7 y = 11
Step-by-step explanation:
have a nice dae
Answer:
b = 30 / a
which agrees with the third expression in the list of possible options
Step-by-step explanation:
When we say that a and b vary inversely, that means that in mathematical form:
b = k / a where "k" is the so called "constant of proportionality". In order to write the function that models this inverse variation, we need to find the value of "k". We do such by using the information they provide (b = 5/2 when a = 12):
5/2 = k / 12
Then, solving for "k":
5 * 12 / 2 = k
60 / 2 = k
k = 30
Then we can now write the function that models this inverse variation:
b = k / a
b = 30 / a
I’m pretty sure the equation is 7.50x+20=9.50x+12 then you subtract the x over and now it’ll be -2x+20=12 and then you do 12 - 20 and that is -8 and then -8 divided by -2 and that is 4. so maybe x equals 4? then plug it in and now you have to check your answer so you plug in the 4 and it is 7.50(4)+20=9.50(4)+12 and then that is 50=50. I MAY BE TOTALLY WRONG. but i tried to help at least
Answer Step-by-step explanation:
Let z = 3x +2. Then the equivalent quadratic equation can be written as
z² +7z -8 = 0
_____
This can be factored as
(z -1)(z +8) = 0
which has solutions
z = {1, -8}.
Then the corresponding values of x are found from
z = 3x +2
z -2 = 3x
(z -2)/3 = x
For z = 1,
(1 -2)/3 = x = -1/3
For z = -8
(-8 -2)/3 = x = -10/3
Answer:
x = -8
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
4(3x−2)=8(2x+3)
(4)(3x)+(4)(−2)=(8)(2x)+(8)(3)(Distribute)
12x+−8=16x+24
12x−8=16x+24
Step 2: Subtract 16x from both sides.
12x−8−16x=16x+24−16x
−4x−8=24
Step 3: Add 8 to both sides.
−4x−8+8=24+8
−4x=32
Step 4: Divide both sides by -4.
−4x
−4
=
32
−4
x=−8
Answer:
x=−8
