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3 years ago

Which algebraic expression represents “the quotient of 7 and a number”?

Mathematics

2 answers:

tigry1 [53]3 years ago

8 0

Answer:

7/x or x/7 i believe

Step-by-step explanation:

I'm relearning them so hope i helped you!

Eva8 [605]3 years ago

3 0

Answer:

$\frac{7}{x}$

Step-by-step explanation:

Let x represent the number.

We are supposed to write an expression for our given statement.

We have been given that the quotient of 7 and a number. This means that 7 is divided by the number 'x'.

We can represent this information in an expression as:

$\frac{7}{x}$

Therefore, our required expression would be $\frac{7}{x}$ .

You might be interested in

Converting from vertex to standard form

stich3 [128]

Answer:

Step-by-step explanation:

y = (x+1)² - 3

= (x²+2x+1)-3

= x²+2x-2

:::::

y = (x-2)² + 3

= (x²-4x+4) + 3

= x²-4x+7

6 0

2 years ago

A rectangular garden originally measured 5 feet by 10 feet as shown below.a path was created by increasing each side of the orig

kotegsom [21]

The area is given by
A = (5 + 2x) * (10 + 2x) - 50
Rewriting we have:
A = 50 + 10x + 20x + 4x ^ 2 -50
Rewriting we have:
A = 4x ^ 2 + 30x
Substituting the value of the area we have:
54 = 4x ^ 2 + 30x
Rewriting:
4x ^ 2 + 30x - 54 = 0
We look for the roots:
x1 = -9
x2 = 3/2
We take the positive root:
x2 = 3/2
Answer:
the value of x is:
x = 3/2

3 0

3 years ago

PLEASE HELP DUE ON THURSDAY

valentinak56 [21]

Answer:

615.8 m^2
314.2 cm^2
38.5 ft^2
113.1 in^2
1075.2 m^2 . . . . corrected to 107,521.0 m^2
490.9 yd^2
18.8 m
94.2 in
81.7 ft
59.7 km
131.9 cm
144.5 yd

Step-by-step explanation:

The formula for the area of a circle is ...

A = πr^2

For each of the given circles, use the value of the radius in this formula. For example, for problem 2, the diameter is shown as 20 cm, so the radius is half that, 10 cm. Putting that value into the formula gives ...

A = 3.14159·(10 cm)^2 = 314.159 cm^2 ≈ 314.2 cm^2

___

The formula for the circumference of a circle is ...

C = 2πr . . . . when the radius is given

or ...

C = πd . . . . . when the diameter is given

As above, put the value for radius (or diameter) into the appropriate formula and evaluate it. For problem 12, that is ...

C = 3.14159·(46 yd) = 144.513 yd ≈ 144.5 yd

_____

<em>Comment on doing lots of problems</em>

The idea behind having you do lots of problems is that repetition will help you remember the formula and/or how to use it. Personally, I find it tedious, so I like to let a spreadsheet or graphing calculator do the arithmetic when there are lots of identical problems (just with different numbers). This question is posted in the college math forum, so we assume you have a graphing calculator and know how to use it.

The attached photo shows a calculator set up to do the calculation and the rounding for each of the problem types. To get the answer to the last area calculation requires scrolling to the right to find it is 490.9 yd^2.

Note that we have used the calculator's button for π. If you put the number in yourself, use the one shown above, or the ratio 355/113, which is accurate to 7 digits.

In some cases, the numbers in the photo are not terribly clear. I took my best guess. In the event I read the value or units incorrectly, you will have to make appropriate adjustments—that is, do the calculation yourself.

_____

Late edit: apparently I read the number wrong for problem 5. The area of a circle with radius 185 m is 107,521.0086 m^2, which rounds to 107,521.0 m^2. Oops.