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3 years ago

3( 3v +5 ) = 39 Solve this problem

Mathematics

2 answers:

IRISSAK [1]3 years ago

7 0

Answer:

v = 8/3

Step-by-step explanation:

The goal here is to find the value of the variable, v, that makes this equation true. We go through a series of steps meant to isolate v on the left side and find the proper value to go on the right side. Here is one way of doing this:

Multiply, as indicated: 9v + 15 = 39.

Isolate 9v by subtracting 15 from both sides: 9v = 24.

Finally, divide both sides by 9 to obtain v = 8/3

An alternative approach follows:

Divide both sides of 3(3v + 5) = 39 by 3, obtaining 3v + 5 = 13.

Subtract 5 from both sides: 3v = 8

Divide both sides by 3: v = 8/3 (same as before)

V125BC [204]3 years ago

5 0

Answer:

V= 8/3

Step-by-step explanation:

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Between x = 2 and x = 3, which function has a greater average rate of change than y = 1 3 -x ?

Fudgin [204]

Y = 1 3 -x = left[y \right] = \left[ 3-x\right][y]=[3−x]

7 0

3 years ago

Find slope of the graph 9x-3y=15

LekaFEV [45]

<h3><u>Explanation</u></h3>

Convert the equation into slope-intercept form.

$y = mx + b$

where m = slope and b = y-intercept.

What we have to do is to make the y-term as the subject of equation.

$9x - 3y = 15 \\ 9x - 15 = 3y \\ \frac{9x - 15}{3} = y$

Simplify

$\frac{9x}{3} - \frac{15}{3} = y \\ 3x - 5 = y \\ y = 3x - 5$

From y = mx+b, the slope is 3.

<h3><u>Answer</u></h3>

$\large \boxed {slope = 3}$

4 0

3 years ago

Solve for x!! help this is due soon

Umnica [9.8K]

Answer

Step-by-step explanation:

62+27+x=180

6 0

3 years ago

How do you graph this equation -2/3y= -6

hichkok12 [17]

Answer:

First, you want to get y by itself, so you will multiply by the reciprocal

( 3 /−2 )-2/-3 : (3/-2)-6

y=9 should be your answer. since there is no x value or "slope" your line will be straight.

Step-by-step explanation:

I have attached what your graph would look like. I hope this helps!!

3 0

3 years ago

Michael can buy 4 sandwiches and 3 cups of coffee for $23.75. Amy can buy 2 sandwhiches and 5 cups of coffee for $19.75 how much

Kobotan [32]

Answer: The cost of one sandwich is $4.25 and the cost of one cup of coffee is $2.25.

Step-by-step explanation:

Let x be the cost of one sandwich and y be the cost of one cup of coffee.

By considering the given situation, we have the following equations :-

$4x+3y=23.75.................(1)\\\\2x+5y=19.75................(2)$

Multiply 2 on both sides of equation (2) , we get

$4x+10y=39.5................(3)$

Subtract equation (1) from equation (3), we get

$7y=15.75\\\\\Rightarrow\ y=\dfrac{15.75}{7}=2.25$

Put value of y in (1), we get

$4x+3(2.25)=23.75\\\\\Rightarrow\ 4x+6.75=23.75\\\\\Rightarrow\ 4x =17\\\\\Rightarrow\ x=4.25$

Hence, the cost of one sandwich is $4.25 and the cost of one cup of coffee is $2.25.

8 0

3 years ago