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3 years ago

For what value of x do the expressions 2x+3 and 3x−6 have the same value?

Mathematics

1 answer:

BARSIC [14]3 years ago

4 0

X=9
2(9)+3=21
3(9)-6=21

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The roots of the equation 4x^2 - (5m + 1)x + 5m=0

svet-max [94.6K]

Answer:

As you had problem in the last answer so I think this is the actual question and the solution according to it.

8 0

3 years ago

Aleka and Helene both opened savings accounts that earn 2.5% interest a year. Aleka puts $2,500 into her account. Helene put $1,

Angelina_Jolie [31]

Answer:

$h(x)=1000(1.025)^x-200x$ .

Step-by-step explanation:

We are given function f for Aleka's amount

$f(x)=2500(1.025)^x$

And function for Helene's amount

$g(x) = 1500(1.025)^x+200x$ .

Now, we need to find the difference of the functions h(x) = f(x)-g(x).

Subtracting f(x) and g(x), function, we get

$h(x) =2500(1.025)^x-(1500(1.025)^x+200x)$

Distributing minus sign over second parenthesis, we get

$h(x) =2500(1.025)^x-1500(1.025)^x-200x$

Subtracting $2500(1.025)^x-1500(1.025)^x$ , we get 1000.

Therefore, $h(x)=1000(1.025)^x-200x$ .

6 0

4 years ago

Read 2 more answers

Add using the number line. −0.5 + (−1.7)

Rudik [331]

Answer:

- 0.5 - 1.7 = - 2.2

Step-by-step explanation:

We need to add two numbers using the number line.

Steps to Add Numbers on the Number Line:

When we add a negative numbers that we move the point to the left of the number line.

We are adding two negative numbers. Locate the first number which is -0.5. Then, add negative 1.7 to it which means moving the existing point 1.7 units to the left of the number line.

So, we get 2.2 on the left.

2.2 is left side it means sign is negative.

Final answer is -2.2

3 0

3 years ago

Evaluate y = 3x - 5 when x = 6

Natali5045456 [20]

y=13

Step-by-step explanation:

y=3x-5

y=3(6)-5

y=18-5

y=13

8 0

3 years ago

Which polynomial, when added to the polynomial 5x^2–3x–9, is equivalent to x^2–5x+6?

Anna71 [15]

Answer:

$-4\cdot{x^2}-2\cdot{x}+15$

Step-by-step explanation:

We can look at the terms one by one. We know that to get 5 to 1 we must add -4 so the first term is:

$-4\cdot{x^2}$

For the x term to go from -3 to -5 we must add -2, so the second term is

$-2\cdot{x}$

Lastly, to go from -9 to 6 we must add 15. The final polynomial added is:

$-4\cdot{x^2}-2\cdot{x}+15$

4 0

3 years ago