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anyanavicka [17]
3 years ago
5

What expression con you substitute in the indicated equation to solve the system below?

Mathematics
1 answer:
Mila [183]3 years ago
6 0
Looking at the first half of all the options, only x=2-4y can be derived from the original equations therefore
Final answer:
A. 2-4y for x in 5x+y=8
Hope I helped :)
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2 5/7+4 3/5= help please
Ainat [17]

Answer:

7\frac{11}{35}

Step-by-step explanation:

2\frac{5}{7}+4\frac{3}{5}

add the whole numbers

2+4=6

combine the fractions

\frac{5}{7}+\frac{3}{5}

LCM is 35 because 7 * 5 =35

\frac{5}{7}=\frac{5\cdot \:5}{7\cdot \:5}=\frac{25}{35}

\frac{3}{5}=\frac{3\cdot \:7}{5\cdot \:7}=\frac{21}{35}

\frac{25}{35}+\frac{21}{35}=\frac{25+21}{35}

=\frac{46}{35}

change the improper fraction into mixed number

6+1\frac{11}{35}

=7\frac{11}{35}

3 0
3 years ago
The graph below shows two functions: function f of x is a straight line which joins the ordered pairs negative 2.5, 9 and 2.5, n
weqwewe [10]
We are looking for the approximate solution of -2x+4=(0.25)^x, that is, we are looking for the solution of the equation f(x)=g(x).

The solution of this equation are represented by the intersecting points (x, y) of the graphs of these functions, because the intersecting points (x, y) are such that 

                    y=f(x), but also y=g(x).


From the graph, we can see that there are two solutions, one is at approximately x=2, and the other is approximately -1.4.


Answer: -1.4, 2.

6 0
2 years ago
Read 2 more answers
Rewrite this polynomial in terms of its simplest factors using the appropriate method: x3 + x2 − 6x.
Sophie [7]

Answer: GCF = x

Step-by-step explanation:

x(x^3/x + x^2/x + -6x/x)

x(x^2 + -6)

x(x - 2)(x + 3)

3 0
3 years ago
Read 2 more answers
a rectangular box of rice is shown below. what is the greatest amount or rice, in cubic inches, that the box can hold?
Gemiola [76]

Answer:

nbbbbbbb

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
List at least two technology tools that can help with calculating future value of an investment. Using complete sentences, expla
Setler79 [48]

Answer:

  • scientific or graphing calculator
  • TVM solver
  • spreadsheet

Step-by-step explanation:

For many future-value calculations, a scientific calculator is a sufficient tool. Of course, one must know the appropriate formula to use.

A good alternative when the calculation is a little messy is a TVM solver or special-purpose financial calculator. I prefer this tool because it requires little more than entering numbers in to the right slots.

Most modern spreadsheet programs and apps come with financial formulas built in. So, they, too, can be easy tools to use for calculating future value. These are especially handy when a number of scenarios need to be explored. (I always have to look up the formulas to see which one is appropriate and what its inputs are. So, I find a spreadsheet less useful for a simple calculation.)

4 0
3 years ago
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