Answer:
C . 4
Step-by-step explanation:
step 1 : -3 multiply with inside of the ( 7x-5 )
= -21x + 15
step 2 : then it will be 21x + 15 = 87 + 3x
step 3 : switch between the odds into like this
21x - 3x = 87 - 15
step 4 : subtract it all
18x = 72
step 5 : bring 18 to the other side
x = 72/18
step 6 : to find the ans of x is just calculate them
x = 72 ÷ 18
= 4
Or you can do like these ⬇️
-3 ( 7x - 15 ) = 87 + 3x
21x + 15 = 87 + 3x
21x - 3x = 87 - 15
18x = 72
x = 72/18 or 72÷18
x = 4
Answer:
49 blue marbles
Step-by-step explanation:
From the question we are given;
- Total number of marbles = 58
- Blue marbles are 4 more than 5 times the red marbles
We need to determine the number of blue marbles;
Assuming the number of red marbles is x
Then, blue marbles will be 5x + 4
Therefore;
x + 5x + 4 = 58
6x + 4 = 58
6x = 54
x = 9
5x + 4 = 5(9) + 4 = 49
Therefore, the red marbles are 9 while the blue marbles are 49
Hence there are 49 blue marbles
The domain is all of ur x values and the range is all of the y values.
So ur domain is { 3,5,6,7 } ....if the values are repeating, they only have to be written once
(2x10)+(4x1)+(3x1/10)+(5x1/100)+(7x1/1000)
<span>1/10,1/100,1000 are fractions
Hope I Helped!!!</span>
Answer:
B. x, y, ac
Step-by-step explanation:
variable
[ˈverēəb(ə)l]
NOUN
variables (plural noun)
an element, feature, or factor that is liable to vary or change.
"there are too many variables involved to make any meaningful predictions"
mathematics
a quantity which during a calculation is assumed to vary or be capable of varying in value.
computing
a data item that may take on more than one value during the runtime of a program.
astronomy
short for variable star.
(variables)
the region of light, variable winds to the north of the northeast trade winds or (in the southern hemisphere) between the southeast trade winds and the westerlies.
Variables
Variables
Dependent and independent variables are variables in mathematical modeling, statistical modeling and experimental sciences. Dependent variables receive this name because, in an experiment, their values are studied under the supposition or hypothesis that they depend, by some law or rule (e.g., by a mathematical function), on the values of other variables. Independent variables, in turn, are not seen as depending on any other variable in the scope of the experiment in question. In this sense, some common independent variables are time, space, density, mass, fluid flow rate, and previous values of some observed value of interest (e.g. human population size) to predict future values (the dependent variable).
