Andrew charges $18 dollars ofr each lawn he mows. Suppose he mows 17 lawns per month. How much money will Andrew make per month?

lawyer [7]

Answer to the question

-20

7 0

3 years ago

The expression 2( 21x + 75 ) represents the monthly tuition and the one-time materials fee that Jamie pays for his two children

ss7ja [257]

Answer: x represents the number of months, 150 represents one-time materials fee, 2( 21x + 75 ) represents total fees in x months and 42 represents rate of change.

Step-by-step explanation:

Since, Here the expression 2( 21x + 75 ) represents the monthly tuition and the one-time materials fee that Jamie pays for his two children to join a science club.

Let, f(x) represents the monthly tuition fee

Therefore, f(x)= 2( 21x + 75 )

⇒f(x)= 42 x +150

Again according to the question, there is a one-time materials fee which must be free from the variable.

Therefore In f(x) , 150 must represent one time material fees.

And, x is variable, and here number of months is a variable.

Thus, x must be denote the number of months.

And, 42 must be denote the fees for 1 month.

8 0

3 years ago

Pierre wants to make tables and chairs. He has a total of 220220 wooden boards and 760760 nails. 13 T+8 C \leq 22013T+8C≤220 rep

Virty [35]

Solution:

Number of wooden boards that Pierre possess= 220

Number of nails that Pierre have= 760

The two expression which represents the number of tables T and chairs C he can make with 220 wooden boards and 760 nails

1. 13 T+8 C≤220

2. 48 T+37 C≤760

We can solve it by two methods, either graphically or by finding their point of intersections,as these two are inequalities in two variable

Equation (1) × 37 - Equation (2) × 8

481 T + 296 C-384 T -296 C≤8140 - 6080

97 T ≤ 2060

T ≤ 21.23(approx)

Putting the value of T in equation (1),

13 × 21.23 + 8 C ≤ 220

347.80 + 8 C≤220

8 C ≤ 220 - 347.80

8 C≤-127.80

As, the value of Chairs (C) can't be negative.

So, the two inequalities which represents number of chairs and number of tables is incorrect.

So, we can't find total number of chairs and total number of tables with the given inequalities.

5 0

4 years ago

3square root 6x-5+20.7=16.8 cube it

insens350 [35]

Answer:

20.7=16.8

Step-by-step explanation:

.. the upper left of the radical sign is the power of the radical. Putting a 2 here means square root. Putting a 3 here means cube root , etc

7 0

3 years ago

A submarine was 144 feet below sea level. A shark was hovering at a constant depth above the submarine. The submarine’s depth wa

Lelu [443]

Answer:

$-72$ feet : Shark is 72 feet below sea level.

Step-by-step explanation:

Let x represent depth of the shark.

We have been given that the submarine’s depth was twice the depth of the shark. This means that depth of submarine would be $2x$ .

We have been given that a submarine was 144 feet below sea level, so submarine's elevation would be $-144\text{ ft}$ .We can represent this information in an equation as:

$2x=-144$

To find shark's position, we need to solve for x.

$\frac{2x}{2}=\frac{-144}{2}$

$x=-72$

Therefore, $-72$ feet represents shark's elevation, which represents that shark is 72 feet below sea level.

3 0

3 years ago

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