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dimulka [17.4K]
4 years ago
10

Solve the following equation for x, and express it’s value in terms of c. 3(cx-7)=9

Mathematics
1 answer:
sveta [45]4 years ago
6 0

Answer:

x=\frac{10}{c}

Step-by-step explanation:

Given equation is 3(cx-7)=9. We require x in terms of c.

3(cx-7)=9

Dividing both sides with 3 we get

(cx-7)=3

Add 7 on both sides we get

(cx)=10

Dividing both sides with c we get

x=\frac{10}{c}

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Negative 5 (2 1/6) equals.
mr Goodwill [35]

Answer: -65/6

Step-by-step explanation:

7 0
2 years ago
Please help, tysm if you do :D
Novosadov [1.4K]

Answer:

3c + 14d

Step-by-step explanation:

Hello There!

We can simplify this expression by combining like terms

Now what are like terms?

They are terms that have the same variable ex. 4a and 2a are like terms as they have the same variable (a)

Now lets look back at the expression and see if there are any like terms

which there are (4c and -c) and (6d and 8d)

so lets combine them

4c - c =3c

6d + 8d = 14d

so the simplified version would be 3c + 14d

4 0
3 years ago
Read 2 more answers
A student expressed a sum of two whole numbers as 5x(8+3). What were the two whole numbers?
Semmy [17]
I believe 5x(8+3) is equal to 40x + 15x meaning those two numbers are the whole numbers you are looking for.
5 0
3 years ago
Write the equation of a line that is perpendicular to the given line and that passes through the given point. 2x + 4y = –6; (2,
Anna [14]

First we have to find the slope of the given line. We do that by puttiing the equation into slope-interept form. or solving it for y (same thing). 2x + 4y = -6. We move the 2x over by subtraction to get 4y = -2x - 6. Divide both sides by 4 to get the slope-intercept form we are seeking. y=-\frac{1}{2}x-\frac{3}{2}. The slope that is perpendicular to that slope of -1/2 is the opposite reciprocal. Therefore, the perpendicular slope is a positive 2/1 or just 2. If this new line goes through the point (2, 5), it goes through the x value of 2 and the y value of 5. We will use those values along with the slope of 2 to solve for b in our slope-intercept equation. That looks like this: 5=2(2)+b and b = 1. That means our new equation, the one that is perpendicular to the given line, has an equation of y = 2x + 1.

7 0
4 years ago
Find f(-3) for f(x)=3x-x^2
4vir4ik [10]
<span>f(-3) for f(x)=3x-x^2

</span>f(-3)=3(-3) -(-3)^2
f(-3)=-9 - 9
f(-3)=-18

answer is the last one on the picture
3 0
4 years ago
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