All categories

3 years ago

Please help quickly !

Mathematics

2 answers:

Flura [38]3 years ago

8 0

Answer:

antwoord

Is d

Step-by-step explanation:

Ilia_Sergeevich [38]3 years ago

7 0

Answer:

See Below:

Step-by-step explanation:

b*3/5 = l

where b is the cost of the bill, being multiplied by 3/5 to find out how much of it was l, labor cost.

We now labor was 79.50 so we substitute that for l.

b*3/5= 79.50 We now multiply by 5/3 on both sides to isolate b, the cost of the bill.

b= 132.50

The correct equation is D, 3/5*b = 79.50 and the total bill was 132.50

You might be interested in

Re-write the statement 16 + 5/2-1 + 6 by including two pairs of brackets

serious [3.7K]

These questions just take some trial and error. Try a bunch of things. After about 2 minutes I came up with

(16 + 5) / (2 - 1 + 6)

You can check this by simplifying everything inside the brackets.

21 / 7

= 3

3 0

2 years ago

If you answer it correctly you’ll get brainliest :)

timofeeve [1]

<h2>Question: 3 (x+2) - 10=4 x - 6 + x</h2><h2>PART 1:</h2>

3(x+2)−10

Distribute:

=(3)(x)+(3)(2)+−10

=3x+6+−10

Combine Like Terms:

=3x+6+−10

=(3x)+(6+−10)

=3x+−4

PART 2:

4x−6+x

=4x+−6+x

Combine Like Terms:

=4x+−6+x

=(4x+x)+(−6)

=5x+−6

Answer:

5x+-6

8 0

3 years ago

What is the slope of the line joining (3,8) and (12,11)

olga2289 [7]

Slope formula
$\frac{y_2-y_1}{x_2-x_1}$

Plug in the info given from the 2 coordinates:
$\frac{11-8=3}{12-3=9}$

Simplify the slope:
<span> $\frac{3/3=1}{9/3=3}$

Final answer: </span>Slope=1/3

6 0

4 years ago

Simplify (3x + 5) + (2x - 9) - (4x + 3).<br><br> x - 7<br> -x - 7<br> -9x - 1<br> 9x - 1

Lyrx [107]

Hi Grant.

(3x + 5) + (2x - 9) is what we'll start with. Considering we cannot combine variables with numbers, we can only combine like-terms.

3x + 2x; 5 - 9; we result with: 5x - 4

Now, we are left with (5x - 4) - (4x + 3)
Remember to distribute the negative sign to everything to the right.

(5x - 4) - 4x - 3. We are now able to simplify and solve for our answer.

5x - 4x; -4 - 3; we result with x - 7.

Your answer is A.) x - 7.

I hope this helps!

4 0

4 years ago

Evaluate the following expression when x = 6 and y = 2:

Liula [17]

Answer:

11/2

Step-by-step explanation:

$\frac{ {x}^{2} + {y}^{3} }{2 + x} \\$