All categories

3 years ago

What value makes the equation 11-3x=-7 true?

Mathematics

2 answers:

german3 years ago

7 0

X = 6

11-3x=-7
Subtract 11 from both sides.

-3x = -18
Divide -3 on both sides.

X = 6

Virty [35]3 years ago

5 0

Answer:

11-3x=-7

11-3(6)=-7

11-18=-7

-7=-7

Step-by-step explanation:

You might be interested in

A typical running track is an oval with 74-m-diameter half circles at each end. a runner going once around the track covers a di

denpristay [2]

Answer:

Her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

Step-by-step explanation:

Total distance covered in one round , D= 400 m

Time taken to cover one round , T = 1 min 40 s = 100 sec

Speed of runner , $V=\frac{D}{T}=\frac{400}{100}\, \frac{m}{s}= 4.0\, \frac{m}{s}$

Now centripetal acceleration is given by

$a_c=\frac{V^{2}}{R}$

where $V= 4.0\frac{m}{s}$

$Radius, R= \frac{Diameter}{2}=\frac{74}{2}m=37\, m$

$\therefore a_c=\frac{4^{2}}{37}\, \frac{m}{s^{2}}=0.432\, \frac{m}{s^{2}}$

Thus her centripetal acceleration during the turn at each end of the track is $0.432\, \frac{m}{s^{2}}$

4 0

3 years ago

Read 2 more answers

Find the parametric equations for the line that is tangent to the given curve at the given parameter (3cost)i (t^4 -3sint)j

ale4655 [162]

Answer:

Following are the solution to this question:

Step-by-step explanation:

Please find the complete question in the attached file.

In the given equation, when the point t=0

So,

$\to r(0) = (3 \cos 0)i + (0^4 - 6 \sin 0)j + (2e^{3\times 0})k)$

$= (3 \times 1)i + (0 - 0)j + (2e^{0})k)\\\\ = 3i + 0j + (2 \times 1)k)\\\\ = 3i + 0j + 2k \\$

The value of the coordinates are $3, 0, 2$ . so, the equation of the line is:

$\to \frac{(x-3)}{3 \cos \ t} = \frac{(y-0)}{(t^{4}-6 \sin \ t)} = \frac{(z-2)}{2e^{3t}}=k$

5 0

3 years ago

What is the value of the rationale expression below when x is equal to 4? X+20/x+4

sveta [45]

Answer:

Step-by-step explanation:

to evaluate substitute x = 4 into the rational expression, that is

$\frac{4+20}{4+4}$ = $\frac{24}{8}$ = 3

6 0

3 years ago

Jacob opened a money-market account. In the first month, he made an initial deposit of $500, and

natima [27]

Answer:

after 13 months

Step-by-step explanation:

........ur welcome..........

1475-500=975

975÷75=13

so 13 months

6 0

3 years ago

If x represents a number, then write an expression for one half the sum of x and 7.

Lostsunrise [7]

Answer:

1/2(x+7)

Step-by-step explanation:

4 0

3 years ago