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2 years ago

Write a numerical expression to represent the phrase. the difference of 4 cubed and 25

Mathematics

1 answer:

7nadin3 [17]2 years ago

3 0

Hello!

First, "the difference" of 2 numbers means you subtract these numbers.

Then, 4 cubed is written as follows:

4³

Subtract:

4³-25

[If necessary] Evaluate:

64-25

Hope everything is clear.

Let me know if you have any questions!

Always remember: Knowledge is power!

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<img src="https://tex.z-dn.net/?f=R%20-%20C%3DP" id="TexFormula1" title="R - C=P" alt="R - C=P" align="absmiddle" class="latex-f

jeka94

-c=p-r
If you were getting the negative C by itself you will want to move the R over on the opposite side. You do that by subtracting are to both sides the hours on the left cancel out leaving you with a negative C on the left side which equals P minus R on the right side

5 0

2 years ago

Read 2 more answers

3.1.3 How far was the hiker at 10:30?

umka21 [38]

Answer:

$y = 1400 + 5.2x$ --- Running cost

$y = 25 x$ --- Monthly income

71 cars

R1775

Step-by-step explanation:

Given

Expenses

$Salaries = 1400.00$

$Others = 5.20$ per car

Income

$Rate = 25.00$ per car

Solving (a): Expression for the running cost

This is calculated as:

$y = Salary + Others * x$

Where

y = Total running cost

x = number of cars

So:

$y = 1400 + 5.20 * x$

$y = 1400 + 5.2x$

Solving (b): Expression for monthly income

This is calculated as:

$y = Rate * x$

Where

y = Total income

x = number of cars

So:

$y = 25.00 * x$

$y = 25 x$

Solving (c): Break even

To do this, we equate the expressions in (a) and (b)

$y = y$

$25x = 1400 + 5.2x$

Collect Like Terms

$25x -5.2x= 1400$

$19.8x= 1400$

Solve for x

$x = \frac{1400}{19.8}$

$x = 71$

Solving (d): How much to break even

Substitute 71 for x in any of (a) or (b)

$y = 25 x$

$y = 25 * 71$

$y = 1775$

Solving (e): There is no question to answer on the "graph"

5 0

3 years ago

The perimeter of a regular hexagon is at most 42 inches.find the possible side lengths of the hexagon

MariettaO [177]

Hello from MrBillDoesMath!

Answer:

The side length is at most 7 inches.

Discussion:

A regular hexagon is a 6-sided polygon where the length of each side is the same. Let this length be L. Then the problem states that 6L < 42, so L < 7

Regards,

MrB

4 0

3 years ago

I’m doing this problem and I want to know if I took the correct approach?

Mandarinka [93]

Answer:

Yes you did good job

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

If (k+1), 3k, (4k+2) are three consecutive terms of an AP then k = ?

seropon [69]

The three consecutive terms in an AP are (k+1) ,3k and (4k+2)

We know that

If a,b,c are the three consecutive terms in an AP then b = (a+c)/2

now ,

Let a = k+1 , b = 3k and c = 4k+2

⇛3k = (k+1+4k+2)/2

⇛3k = (5k+3)/2

⇛2×3k = 5k+3

⇛6k = 5k+3

⇛ 6k-5k = 3

⇛ k = 3

The value of k = 3

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5 0

2 years ago