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2 years ago

Solve for x

{3x+13}=2x-3" align="absmiddle" class="latex-formula">

Mathematics

2 answers:

ivanzaharov [21]2 years ago

6 0

Answer:

x=13

Step-by-step explanation:

Allushta [10]2 years ago

4 0

I believe that x actually equals to 4
x=4

You might be interested in

Please help me with this

JulijaS [17]

Answer: C

Step-by-step explanation:

The formula to find average rate of change is $\frac{f(b)-f(a)}{b-a}$ . Since the problem is asking for the average rate of change from the second to fifth year, we plug in a=2 and b=5.

$\frac{f(5)-f(2)}{5-2}$

f(5)=420.4

f(2)=408.04

$\frac{420.4-408.04}{5-2}=4.12$

Now, we get 4.12 dollars per year for the average rate of change.

7 0

4 years ago

Which answer describes the type of sequence? 3,9, 15, 21, ...

Margarita [4]

Answer: Arithmetic sequence

Step-by-step explanation:

The pattern in the sequence is n = n-1 + 6. Since n is increasing through addition with each term, this sequence is arithmetic.

4 0

3 years ago

How many pennies could you have if: When you break the pennies into groups of 2, you have 1 penny left over, AND when you break

zhenek [66]

Answer:

Step-by-step explanation:

"When you break the pennies into groups of 2, you have 1 penny left over"

You have an odd number of pennies.

"when you break the pennies into groups of 3, you have 1 penny left over"

The number of pennies is one more than a multiple of 3.

"when you break the pennies into groups of 5, you have 1 penny left over"

A number that is divisible by 5 ends in 0 or 5. You have one more penny than that, so the number will end in 1 or 6. We already know the number is odd, so it cannot end in 6. The number of pennies must end in 1.

"when you break the pennies into groups of 7, you have NO pennies left over"

The number is a multiple of 7.

We need a multiple of 7 that ends in 1.

7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, ...

You could have 91.

4 0

3 years ago

Jan 258:00:56 AM

horsena [70]

Answer:

The equation of the straight line in point-slope form

$y - 4 = \frac{7}{9} (x-0)$

The equation of the straight line

7x -9y +36 =0

Step-by-step explanation:

Step(i):-

Given that the points (0,4) and (-9,-3)

The slope of the line

$m = \frac{y_{2} - y_{1} }{x_{2}- x_{1} } = \frac{-3-4}{-9-0} = \frac{7}{9}$

Step(ii):-

Equation of the straight line passing through the point (0,4) and having slope m = 7/9

$y - y_{1} = m (x-x_{1} )$

$y - 4 = \frac{7}{9} (x-0)$

9 y - 36 = 7x

9y = 7x + 36

$y = \frac{7x}{9} +\frac{36}{9}$

Slope - intercept form

$y = \frac{7x}{9} +4$

Final answer:-

The equation of the straight line in point-slope form

$y - 4 = \frac{7}{9} (x-0)$

The equation of the straight line

7x -9y +36 =0

8 0

3 years ago

Read the statement, and identify the expressions that are equivalent.

Digiron [165]

B. (n + 15) x 3--- That seems to be the correct answer. I hope I helped!

5 0

3 years ago